Answer: B
Explanation:
I need help with this assignment bio question
(a) The rate of photosynthesis will decrease because even though Hydrilla plants require less sunlight but the requirement is necessary.
(b) Three limiting factors are- Light intensity, Temperature and [tex]CO_{2}[/tex].
(c) The bubbles represent the evolution of oxygen.
What is Photosynthesis?
Plants and other living things employ a process called photosynthesis to transform light energy into chemical energy that can subsequently be released through cellular respiration to power the organism's activities.
What is the Hydrilla plant?
The hardy, quickly-growing perennial herb Hydrilla has long, slender stems that can reach lengths of up to 7 meters (23 ft). The tiny, lance-shaped or oblong leaves are clearly toothed and grow in pairs or whorls of three to eight. Also, they are aquatic and always remain submerged in water, they lack stomata and use their body for photosynthesis.
The rate of photosynthesis will decrease because even though Hydrilla plants require less sunlight but the requirement is necessary. Three limiting factors are- Light intensity, Temperature and [tex]CO_{2}[/tex]. The bubbles represent the evolution of oxygen.
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What is distribution of traits?
The alleles of the various genes that each individual chromosome carries are mixed and matched traits with regard to one another, resulting in a distribution of traits.
When comparing populations, differences are typically seen as variations in the frequency distributions of the states (or kinds) of a certain feature (or set of traits). As a result, if two or more populations exhibit the same trait states at the same rates, they are said to be identical. A population's variance and pattern of attributes are influenced by both genetic and environmental variables. During meiosis, chromosomes can switch sections, causing mutations brought on by environmental factors, mistakes in DNA replication, or both.
As a result, we can infer that the alleles of the numerous genes that each chromosome carries are mixed and matched traits in relation to one another, producing a distribution of traits.
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Describe ways to maintain fish as renewable resources and explain how scientific data are used to manage fish stocks?
Answer:
Electronic sonar and Global Positioning Systems are used to locate the fish. Ships cross the area, dragging huge nets at the right depth to catch them. The usable catch is often cut, packaged, and frozen right on board. Ships can remain on the ocean for several weeks before returning to home port.
Stock assessments are scientific processes that analyze available data using statistical models to produce management advice. That management advice estimates sustainable harvest levels maximizing fishery removals while protecting stocks’ long-term health.
What is the correct order of events in mitosis ?
Prophase, prometaphase, metaphase, anaphase, and telophase should occur in that order during mitosis.
Explain about the mitosis?When a parent cell divides into two identical daughter cells, a process known as mitosis, which involves nuclear division, takes place. Mitosis during cell division specifically refers to the division of the duplicated genetic material carried in the nucleus.
These are the phases of mitosis: In prophase, the chromosomes get shorter and thicker. In the middle of the cell, during the metaphase, the chromosomes align. Chromatids separate during the anaphase process and travel to the opposing poles. Two nuclei are created during telophase when nuclear envelopes have reformed around each set of chromosomes.
The process of mitosis involves the division of the parent cell into two daughter cells once the nucleus of a eukaryotic cell divides in two. The meaning of the word "mitosis," which is "threads," alludes to the chromosomes' appearance as threads.
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If the gene that produces helicase were mutated so that the helicase enzyme was non-functional, which of the following would you expect as a
direct result
Answer:
Helicase malfunctions can have negative effects on one's health. Mutations that prevent helicase function have been associated with cancer and several genetic disorders, including xeroderma pigmentosum and Werner syndrome, which induce rapid aging (a photosensitivity disorder caused by a defect in DNA repair).
Cancer and genetic illnesses including xeroderma pigmentosum and Werner syndrome, which accelerate aging, are linked to helicase mutations (a photosensitivity disorder caused by a defect in DNA repair).
What is the function of helicase?DNA helicases are enzymes that break the hydrogen bonds that are responsible for keeping the two strands of double-stranded DNA connected to one another. The creation of the single-stranded DNA that is required as a template or reaction intermediate in DNA replication, repair, and recombination is the end consequence of this unwinding reaction, which requires a significant amount of energy.
Cancer as well as various other hereditary illnesses, such as xeroderma pigmentosum and Werner syndrome, both of which cause premature aging, have been linked to mutations that prohibit helicase from functioning properly (a photosensitivity disorder caused by a defect in DNA repair).
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What are the 4 steps of protein synthesis?
The 4 steps of protein synthesis are: transcription, pre-translational modification, translation, and post-translational modification.
In the first step of protein synthesis, the information in the DNA is transcribed into coded form in the mRNA. This process is called as transcription.
The second step is the pre-translational modification. In this process, the introns are removed from the pre-mRNA transcripts.
The third step is the process of translation. During this process, information from mRNA is decoded into amino acids that join to form proteins.
The last step of protein synthesis is post-translational modification. During this process, chemical modifications to the proteins are done so that they can be transported outside the cell where they are made.
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How are differentiated cells different?
It is the procedure by which one type of cell transforms into another.Cell differentiation can result in changes to a cell's size, shape, membrane potential, metabolic processes, and responsiveness.
What distinguishes differentiated cells from one another?Gene expression alterations lead to cell differentiation.
This happens when various environmental signaling molecules activate or repress certain transcriptional factors that are required to express particular genes in the DNA.
What does the differentiation of cells mean?Pay attention to how it sounds.the process through which newly formed, immature (unspecialized) cells develop their own unique properties and mature into their specialized form and function.
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what is the role of combustion in the carbon cycle
Combustion is an organic material reaction to burning in the presence of oxygen. It is the process of conversion to the carbon cycle.
The earth must sustain its current level of carbon. The carbon cycle keeps this going.
Plants use the carbon from the atmosphere, which is then passed to mammals. Carbon dioxide is released into the atmosphere when animals breathe.
Additionally, after spending a long time in the soil, plants and animals perish and turn into fossil fuels. The carbon dioxide in the atmosphere is then released once they are burned.
Due to the massive amount of fossil fuels burned, a level of carbon dioxide that is above normal is released.
This is causing many respiratory disorders and ocean acidification.
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What are the 6 signs of an allergic reaction?
Any harmless substance like allergen comes in contact with body the immune system overreacts, and this hypersensitive reaction of immune body is allergic reaction.
Taking certain medications and staying away from allergens can cure allergic reactions.
The sign of allergic reaction tells us that the person is suffering from allergy.
The 6 signs of allergic reaction is -
1. if the person is constantly sneezing and wheezing.
2. runny nose and the itchiness in eyes.
3. heaviness in the chest
3. skin rashes and red spot or hives on the body
5. swollen faces
6. dull face
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What factors influence the quantity of saliva secreted during meal?
Answer:
Copious watery saliva is secreted in response to parasympathetic stimulation and thicker saliva in response to sympathetic stimulation. Other factors affecting saliva composition are flow rate, circadian rhythm, duration of stimulus, nature of stimulus and diet.
When the parasympathetic nervous system is stimulated, copious watery saliva is secreted, and when the sympathetic nervous system is stimulated, thicker saliva is secreted.
In addition to flow rate, circadian rhythm, stimulus duration, stimulus nature, and diet, saliva composition is also affected by flow rate and circadian rhythm.
In sleep, major salivary glands secrete very little saliva, and the majority of saliva is secreted by minor salivary glands. Saliva concentration is determined by the rate of flow, not stimulus type.
The daily normal production of saliva with or without food is between 0.5 and 1.5 liters. The whole unstimulated saliva flow rate is approximately 0.3-0.4 ml/min. It decreases to 0.1 ml/min during sleep and increases to 4, 0-5, 0 ml/min during eating, chewing, and other stimulating activities.
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What are the 4 patterns of inheritance?
There are four types of inheritance patterns X-linked inheritance, complex inheritance, & autosomal dominant inheritance.
Autosomal Dominant Inheritance
Every generation has its share of impacted individuals.Some carriers might not get the illness.The mutation can be passed on equally between males and females.Child danger is 50%.Autosomal Recessive Inheritance
Maybe the impact is limited to one generation.Usually, carriers do not exhibit a condition.The mutation must be carried by both parents.25% of danger is to kids.X-linked Inheritance
No transfer from man to man.Although uncommon, girls who inherited two mutations may be impacted.The symptoms that do appear in female carriers of one mutation are typically less severe than those found in male carriers.Complex Inheritance
There is no obvious Mendelian inheritance pattern.clustering of diseases in the same family that is physiologically connected.Estimates of risk are mostly based on empirical data.To know more about inheritance patterns at
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Honey bees are one of several insect species that pollinate the crops that humans depend on for food. Currently, populations of these bees all over the world are declining rapidly. This decline threatens to cause a severe loss to both the crops humans grow for food and the overall biodiversity of plants on Earth. Which of the following would be the best solution to the problem of declining bee populations?
Explanation:
Bees are declining at alarming rates in some ecosystems. Which of the following would be a loss of an ecosystem service due to bee declines? The declines in abundance could cause extinctions of bee species or genotypes. Bees pollinate plants, so declines could cause declines in native plant abundances. Bees pollinate many crops, so declines could reduce agricultural production. Bees have many predators, so declines could affect their consumers. Bee declines could cause losses of microbial species not yet known to science.
The declines in abundance could cause extinctions of bee species or genotypes. Bees pollinate plants, so declines could cause declines in native plant abundances.
What do you mean by genotypes?The genotype of an organism is its complete set of genetic material. Genotype can also be used to refer to the alleles or variants an individual carries in a particular gene or genetic location.
A genotype is a scoring of the type of variant present at a given location (i.e., a locus) in the genome. It can be represented by symbols. For example, BB, Bb, bb could be used to represent a given variant in a gene.
The different types of genotypes are- homozygous recessive (pp), homozygous dominant (PP), and heterozygous (Pp). The homozygous dominant and the heterozygous genotypes show the same phenotypes.
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Why is mitosis important 3 reasons?
Expansion and development. Mitosis is the process by which an embryo develops after a gamete from meiosis has united with another gamete to form an embryo. Cell division is essential for organism development, tissue repair, healing and regeneration, and reproduction. Asexual reproduction is a form of reproduction in which the number of chromosomes or the fusion of gametes are not altered.
Multicellular creatures depend on mitosis to reproduction of new cells for growth and to replace damaged or worn-out cells, such as skin cells. Mitosis serves as Mitosis the main asexual reproductive mechanism for a large number of single-celled organisms.
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how are the different layers of the atmosphere determined?
Answer:
based on the temperature of the layers and how far away they are from earth (or any planet with an atmosphere)
Explanation:
the different layers have a series of different temperatures that helps us differentiate them. for example, the farthest atmospheric layer from earth is the hottest because it is closest to the sun, and the layer closest to earth is the coolest because it is farthest from the sun.
Which type of biomass energy can be produced from garbage heaps?
The following are types of biomass energy that are produced from garbage heaps; Ethanol, Biodiesel, Methane, Gasoline.
What is Biomass Energy?Biomass energy is energy generated or produced by living or once-living organisms. The most common biomass materials used for energy are plants, such as corn and soy, above. The energy from these organisms can be burned to create heat or converted into electricity.
Biomass is organic, meaning it is made of material that comes from living organisms, such as plants and animals. The most common biomass materials used for energy are plants, wood, and waste. These are called biomass feedstocks. Biomass energy can also be a non-renewable energy source.
Biomass contains energy first derived from the sun: Plants absorb the sun’s energy through photosynthesis, and convert carbon dioxide and water into nutrients (carbohydrates).
The energy from these organisms can be transformed into usable energy through direct and indirect means. Biomass can be burned to create heat (direct), converted into electricity (direct), or processed into biofuel (indirect).
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how is the expression of polygenic traits determined
The polygenic traits determined by the expression of its of both. Traits may be qualitative (which include eye color) or quantitative (which include peak or blood pressure).
Polygenic developments are decided through the interactions among numerous exclusive genes, which show incomplete dominance.
There are many exclusive allele combos can probable be constituted of mother and father which might be heterozygous for a polygenic trait managed through 3 exclusive genes with allele pairs Polygenic developments are expressed through the interplay of a couple of genes and the environment.
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please help Think about the effect that NASA technologies have on your everyday life. What’s your opinion of the reciprocal relationship that NASA has with the public? Do you think this relationship is harmful or helpful? How might reduced government funding of NASA affect you as a consumer? Give evidence and reasoning for each of your claims.
earth and space science
Our reciprocal relationship with NASA and its technologies are more helpful than harmful to our life. The work of NASA makes us understand the earth we live and even their technologies allow us to see how the world and space look even if we just see from the screen.
But, not many people knew that some innovation that become common things in our daily life was affected by space technology. One of them is the baby formula; when NASA was researching the algae potential as the agent of recycling for long-duration space travel, they found out that nutrient-rich algae contained Docosahexaenoic Acid (DHA) and Arachidonic Acid (ARA) which is an excellent dietary supplement for the development of mental and visual of an infant. Imagine how much people were helped by these discoveries because a lot of mothers couldn't breastfeed their babies and needed baby formula. Moreover, don’t forget the internet we use today also came from the space technology of NASA.
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when a new mutation occurs in a somatic cell of a sexually reproducing organism what percentage
when a new mutation occurs in a somatic cell of a sexually reproducing organism It will not pass on to future generations. The offspring are formed by germ line cells, not somatic cells.
Inheritance is the process by which genes are passed down from one parent to another. As a result, children share some traits with their parents. There are two types of cells in animals: the germline cell and the somatic cell.
The somatic cell is everywhere in the body and has no effect on inheritance. The reproductive organ's germ line cells undergo meiosis, forming gametes that produce offspring.
As a result, no children will inherit the somatic cell mutation.
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(Complete question)
when a new mutation occurs in a somatic cell of a sexually reproducing organism, what percentage of the individual's offspring are likely to inherit the mutation?
How does water pollution affect orcas?
Water pollution affects orcas by increasing the risk of nutritional stress.
Pollution is the introduction of dangerous materials into the environment. Those harmful materials are referred to as pollutants. Pollutants can be herbal, which includes volcanic ash. They also can be created via a human pastime, such as trash or runoff produced by factories.
Most of the people of that pollution are emitted through human activities like burning fossil fuels, automobile exhaust fumes, and emissions from agriculture and enterprise.
Decreasing adulterants inside the air are critical for human fitness and the environment. Bad air excellent has dangerous outcomes on human health, particularly the breathing and cardiovascular structures. Pollution also can harm flora and buildings, and smoke or haze can reduce visibility.
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What are the 7 Types of asexual reproduction in plants?
The 7 types of asexual reproduction include binary fission, budding, vegetative propagation, spore formation (sporogenesis), fragmentation, parthenogenesis, as well as apomixis.
Without the creation of seeds, asexual reproduction produces new plants. sprouting of new plants. Asexual reproduction of this kind creates new plants from the roots, stems, leaves, and buds. Vegetative propagation refers to reproduction that occurs through a plant's vegetative components. The vegetative components of plants, such as their leaves, roots, stems, and buds, are used for asexual reproduction. Vegetative propagation is what this is known as.
Examples of plants that reproduce by vegetative propagation include potato tubers, onion bulbs, runners, stolons, etc. In most cases, single-celled organisms exhibit this kind of reproduction.
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What is the correct order of steps in the cell cycle ?
The cell cycle is a four stage procedure
Gap 1, or G1 phase Synthesis, or S phase Gap 2, or G2 phase Mitosis, or M phaseThe period between cell divisions is represented by the stages G1, S, and G2, which together make up interphase. An individual cell "decides" whether or not to join the cell cycle and divide based on the stimulatory and inhibitory signals it receives.
Checkpoint signalling systems and specialised proteins are used by cells to guarantee correct cell cycle progression. DNA damage is checked for before and after S phase at checkpoints at the end of G1 and the start of G2. Similar to this, a checkpoint in mitosis makes sure that the chromosomes are properly separated in anaphase before the cell's spindle fibers are properly aligned in metaphase.
Hence, cell cycle is sequence of event in organized manner.
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Explain the relationship between structure and function of the placenta
Answer:
Its principal function is to supply the fetus, and in particular, the fetal brain, with oxygen and nutrients. The placenta is structurally adapted to achieve this, possessing a large surface area for exchange and a thin interhaemal membrane separating the maternal and fetal circulations.
Explanation:
I hope it helps
What are three effects of cardiovascular endurance training?
VO2 max is increased, plasma volume expansion is stimulated, and body fat mass is decreased through cardiovascular endurance training.
The ability to undertake dynamic, large-muscle exercises for a lengthy amount of time at a moderate to high intensity is known as cardiovascular endurance (typically over 20 to 30 minutes). It gauges how well your body can expel carbon dioxide and deliver oxygen-rich blood to your organs. As a result, cardiovascular endurance serves as a reliable predictor of the health of the heart, lungs, and muscles. You can exercise and work out intensely longer if your cardiovascular endurance is higher than that of someone with lower endurance.
Measurements of cardiovascular endurance look at how much oxygen your body consumes during vigorous exercise. METs and VO2 Max are two metrics that are used to gauge the condition of your cardiorespiratory system.
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What is so different about lions and zebras teeth. Why is their dentition different?
An animal who eats other living beings or animals in order to maintain his survival is known as a predator. Whereas the living beings or animals which get killed are known as prey.
What happens when a lion takes a herd of zebras?When a lion takes a herd of zebras by surprise, then zebras start running in all directions because they have the fear of getting killed by the lion and in order to survive they run towards an isolated place.
Also, the zebra's run in different directions because they want to confuse. As by doing so, it would be difficult for the lion to decide on which zebra he should attack.
Therefore, An animal who eats other living beings or animals in order to maintain his survival is known as a predator. Whereas the living beings or animals which get killed are known as prey.
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24.
If a cell has 10% NaCl (salt; or solutes) and 90% water inside of it and the environment it is placed in has the same NaCl to water ratio, in which direction will osmosis occur? (Hint: draw a picture for yourself)
into the cell
out of the cell
no net movement
25.
If a cell has 30% NaCl and 70% water inside of it and the environment outside the cell is 10 % NaCl (salt; or solutes) and 90% water, which direction will DIFFUSION take place? (Hint: draw a picture)
into the cell
out of the cell
no net movement
26.
If a cell has 30% NaCl and 70% water inside of it and the environment outside the cell is 10 % NaCl (salt; or solutes) and 90% water, in which direction will WATER move? (Hint: draw a picture)
into the cell
out of the cell
no net movement
27.
Which of the following is NOT a form of passive transport?
facilitated diffusion
osmosis
simple diffusion
endocytosis
28.
The structure MOST responsible for maintaining homeostasis is:
cytoplasm
mitochondria
cell wall
cell membrane
29.
In the egg lab, what type of solution were we putting the egg in when we had it sit in distilled water?
hypertonic
isotonic
hypotonic
neutral
30.
In the egg lab, what type of solution were we putting the egg in when we had it sit in syrup?
isotonic
hypertonic
hypotonic
neutral
31.
If you are floating aimlessly on a small boat in the middle of the Pacific Ocean with sharks swarming and you are dying of thirst, would it be a lifesaving decision to drink the seawater around you to quench your thirst? THINK! EXPLAIN IN DETAIL USING VOCAB FROM THIS UNIT.
HELP TEST
24. If a cell has 10% NaCl (salt; or solutes) and 90% water inside of it and the environment it is placed in has the same NaCl to water ratio, the direction that osmosis will occur is no net movement; option C is correct.
25. If a cell has 30% NaCl and 70% water inside of it and the environment outside the cell is 10 % NaCl (salt; or solutes) and 90% water, the direction that diffusion will occur is into the cell; option A is correct.
26. If a cell has 30% NaCl and 70% water inside of it and the environment outside the cell is 10 % NaCl (salt; or solutes) and 90% water, the direction in which WATER will move is into the cell; option A.
27. Endocytosis is NOT a form of passive transport; option D is correct.
28. The structure MOST responsible for maintaining homeostasis is the cell membrane; option D is correct.
29. In the egg lab, the type of solution we were putting the egg in when we had it sit in distilled water is hypotonic; option C.
30. In the egg lab, the type of solution we were putting the egg in when we had it sit in syrup is isotonic: option A.
31. If you are floating aimlessly on a small boat in the middle of the Pacific Ocean with sharks swarming and you are dying of thirst, it would not be a lifesaving decision to drink the seawater around you to quench your thirst because the seawater is hypertonic.
What are hypertonic, hypotonic, and isotonic solutions?
A hypertonic solution is a solution whose concentration is greater than the concentration of the solution in the cell.
A hypotonic solution is a solution whose concentration is less than the concentration of the solution in the cell.
An isotonic solution is a solution whose concentration is the same as the concentration of the solution in the cell.
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what organ systems help the digestive system when your food goes down your stomach?
I think it is the intestines
What can you do to help protect your body from non infectious diseases?
In order to help protect your body from noninfectious diseases, you should take a healthy diet and engage in physical activities.
Non-infectious diseases can be described as those diseases that are not caused by any infectious agent.
In order to prevent non-infectious diseases and stay healthy, a person needs to eat food that promotes the wellness of the body. He should consume vegetables, and fruits and avoid sugary and fatty foods.
A person who intends to be safe from non-infectious diseases and wants to stay fit should exercise regularly so that his metabolic activities are boosted. Aldo, around eight glasses of water should be consumed in a day.
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What heat source drives the Water Cycle? A Ocean B) Wind D Moon Sun
Answer:
D) Sun
Explanation:
The water cycle is driven primarily by the energy from the sun. This solar energy drives the cycle by evaporating water from the oceans, lakes, rivers, and even the soil. Other water moves from plants to the atmosphere through the process of transpiration.
One or two countries reducing their CFC emissions will not be enough to stop ozone depletion globally. What do you think the countries of the world should do to reduce CFC emissions?
All the countries of the world need to lower their emission rates in order to reduce CFC emissions globally.
What are CFCs?CFCs is an acronym for chlorofluorocarbons, a group of non-toxic gases consisting of atoms of chlorine, fluorine, and carbon.
The compounds are found artificially in products like aerosol sprays, old refrigerants, and many other man-made products invented to make life generally better for humans. The gases are considered generally safe and unreactive in lower atmospheres down here.
In the stratosphere, however, CFCs are highly reactive. They undergo photolytic decomposition, a process that is largely catalyzed by the availability of UV light in the stratosphere. When this happens, chlorine molecules are released.
The free chlorine molecules react with the protective ozone layer and as a result, the ozone layer gradually gets destroyed. A single chlorine molecule can react with 100,000 ozone molecules.
Thus, in order to protect the ozone layer by reducing the emission of CFCs, all the countries in the world need to put their hands on deck. The whole world shares a single atmosphere. Thus, CFCs released in one part of the world eventually circulate to every part of the world.
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What causes cell differentiation ?
Gene expression changes cause cell differentiation.
Cell differentiation is the process by which undifferentiated embryonic cells become specialized cells. This happens as a result of a process known as gene expression.
Gene expression refers to the specific combination of genes that are turned on or off (expressed or repressed), and it determines how a cell functions. Gene expression is triggered by signals in your body, both inside and outside of your cells.
Gene expression refers to the process by which information from a gene is used to build the structures of a cell. Because RNA translates and transcribes the DNA code into proteins (cell structures), it also aids in cell differentiation.
Gene expression is a tightly controlled process that allows a cell to respond to changes in its surroundings. It functions as an on/off switch to control when proteins are produced as well as a volume control to increase or decrease the amount of proteins produced.
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