Methylation is an example of epigenetics that is present in the third option, and this methylation helps in the expression of the gene or the repression of the gene product in the cell.
What is the importance of methylation in the cell?Methylation has many functions, such as in gene expression, where it can turn genes on or off by altering the way that DNA is packaged, such as by tightening or loosening the gene so that enzymes can access it; in DNA stability, methylation can help protect the genome from damage by stabilizing the DNA structure; and in epigenetic regulation, where it plays an important role.
Hence, methylation is an example of epigenetics that is present in the third option, and this methylation helps in the expression of the gene or the repression of the gene product in the cell.
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Answer:
C. Epigenetics
Explanation:
:)
Which two atoms form an ionic bond?
A.sodium and bromine
B. two sodium atoms
C. two oxygen atoms
D fluorine and chlorine
Answer:
sodium and bromine
Explanation:
The one valence electron from sodium would be transferred to the bromine atom so they can both have an octet.
Which two atoms form an ionic bond?
Answer : A
Explanation : Ionic bond is a type of chemical bond and binds the chemical molecules together. Ionic bond is formed by the transfer of electrons from an electropositive element ( metal) to the electronegative element (non metal).
Sodium is an electropositive element and contains one positive charge. Bromine is an electronegative element with a single negative charge over it. Sodium gives the electron to bromine and results in the formation of ionic bond.
Thus, the correct answer is option (C).
Hope this helps you!
What are some geological characteristics of glaciers in Glacier National Park?
Answer:
The minimum size criterion for a glacier is 0 .1 km², or about 25 acres. Below this size, the accumulated ice generally does not move and is stagnant. Many years of snow accumulation compacts the bottom layers of snow into ice. Under the huge weight of the snowpack (usually 100ft/30.5m thick or more), the ice becomes viscous and allows the mass to slide downhill. The appearance of crevasses and cracks attest to a glacier’s movement. Glaciers don't "bulldoze" landscape as much as they melt and re-freeze, plucking material from areas of snow deposition and moving it to other areas, like downhill conveyor belts.
Explanation:
Right on ED2021, good luck!
How many minutes are there in a 40-hour week?
A:2,000
B:2,400
C:1,400
D:1,200
There will be 2,400 minutes in a week of 40 hours. This can be calculated by the help of unit conversion of time. Thus, the correct option is B.
What is Unit conversion?
Unit conversion is the change of one form of unit to another form of unit of different system such as conversion of units of measurement of weight from gram to kilogram or milligram.
Unit conversion of one unit to another unit is used in order to have accuracy and avoiding the confusion in measurements. For example, the length of pencil is not measured in kilometers rather it is measured in centimeters or inches, which are comparatively smaller than kilometers. In such a case, one has to convert the unit of length from kilometer (km) to centimeter (cm).
The week of 40 hours can be converted into minutes by:
Number of minutes in 1 hour = 60
Therefore, the number of minutes in 40 hours = 60 × 40 = 2,400 minutes
Therefore, the correct option is B.
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What is oxidative phosphorylation.
Answer:
Oxidative phosphorylation is energy given by electron transport and this takes place during aerobic respiration in the mitochondria.
Explanation:
This process produces huge amounts of ATP, which is the unit of energy for metabolic processes.
Bryant Vaughn first worked for United States government as a forensic botanist in 1975, _____ after pollen analysis was first used by Lennart von Post.
Bryant Vaughn first worked for the USA government as a forensic botanist in 1975, 59 YEARS after pollen analysis was first used by Lennart von Post. L. von Post is considered the father of palynology.
Palynology refers to the discipline that studies plant pollen in both living and fossil forms of life.
Lennart von Post was a naturalist and geologist who is generally regarded as the father of modern palynology.
L. von Post published in 1916 a quantitative analysis of pollen grains entitled “Forest-tree pollen in south-Swedish peat layers”.
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How does humus help in plant growth?
Explanation:
Humus gives the soil the ability to absorb and retain moisture. Such soils do not dry out and require significantly less irrigation. Humus provides a reservoir for the plant nutrients available in the soil for balanced plant growth.
Answer:
Humus gives the soil the ability to absorb and retain moisture. Such soils do not dry out and require significantly less irrigation. Humus provides a reservoir for the plant nutrients available in the soil for balanced plant growth.
Identify the organelles in the cell to the right.
А
חד
F
В.
А
B
С
с
C
D
E
F
E
DONE
D
plant cell
Answer:
A- Vacuole
B- Chloroplast
C- Cell membrane
D- Golgi bodies
E- Smooth and rough endoplasmic reticulum
F- Cell wall
Explanation:
This is a structure of a plant cell which unlike animal cell has a cell wall as well as plasma membrane. It also contains large vacuoles present in the center of the cell. The green color of the plants is due to the presence of chlorophyll which is present in an organelles called chloroplast.
Organelles which are labelled in the cell are
A:Cell membrane
B:Vacuole
C:Nucleus
D:Cytoplasm
E:Chloroplast
F:Cell wall
The given figure represents a plant cell. So, the correct option is C.
What is Plant cell?Plant cells are defined as eukaryotic cells that contain a true nucleus as well as specialized structures known as organelles that perform certain specialized functions. Plant and animal cells both contain a nucleus with similar organelles but plant cells differ due to the presence of a cell wall outside the cell membrane.
In the given figure, labelled organelles function are as follows:
Vacuole stores food, extra water, and waste while cell membrane permits selective passage of things into and out of the cell. The cell's nucleus serves as the activity's control centre, while the cytoplasm is the fluid that gives the cell its jelly-like consistency. Chloroplasts contain a substance called chlorophyll that is a green pigment that aids in photosynthesis. The cell wall of a plant gives it form, stiffness, strength, and protection.
Thus, the given figure represents a plant cell. So, the correct option is C.
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Your question is incomplete, most probably the complete question is:
Identify the organelles in the cell to the right and label the parts A, B, C, D, E and F.
A.
A:Cell membrane
B:Vacuole
C:Nucleus
D:Chloroplast
E:Cytoplasm
F:Cell wall
B
A:Cell membrane
B:Vacuole
C:Nucleus
D:Cytoplasm
E:Chloroplast
F:Cell wall
C
A:Cell membrane
B:Nucleus
C:Cytoplasm
D:Vacuole
E:Chloroplast
F:Cell wall
D
A:Cell wall
B:Cell membrane
C:Nucleus
D:Cytoplasm
E:Chloroplast
F:Vacuole
which of these organs is an accessory organ of the digestive system?
Answer:
Where is the picture??
Explanation:
plant and animal mitosis are very similar except for cytokinesis. explain how this process is different.
Answer:
Cell division or cytokinesis in mitosis or meiosis is very similar... There is a region of division to separate the two daughter cells in both processes; however, the division plate is slightly different between animal cells and plant cells. In animals, the region of division is a division plate. hope this helps! :)
Which type of resources form much more slowly than we use them? A: reusable B: renewable C: nonreusable D: nonrenewable
The type of resources from much more slowly than we use them is non-renewable resource. The correct option is D.
What are nonrenewable resources?A non-renewable resource is a natural resource that cannot be replaced quickly enough by natural means to keep up with consumption.
Carbon-based fossil fuels are one example. With the help of heat and pressure, the original organic matter is converted into a fuel such as oil or gas.
Nonrenewable energy sources are not only affecting our planet's atmosphere by increasing greenhouse gas emissions.
Coal and oil combustion emits particles that can pollute the air, water, and land. Some of these particles are captured and stored, but many are released into the atmosphere.
The use of fossil fuels also disrupts Earth's "carbon budget," which balances carbon in the ocean, earth, and atmosphere.
Thus, the correct option is D.
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explain how the internal parts of a leaf are adapted for photosynthesis
Explanation:
Leaves have a large surface area so more light hits them. The upper epidermis of the leaf is transparent, allowing light to enter the leaf. The palisade cells contain many chloroplasts which allow light to be converted into energy by the leaf.
help help pls
choose the right letter
29. The ABO blood type gene is an example of which means that heterozygous display two phenotypes at the same time.
A. Fading
B.Incomplete dominance
C. Codominance
D. Advanced hybridism
Answer:
Codominance i believe :)
Out in the distance you see
Processes that add carbon to the atmosphere are called what
Answer:
Combustion
Explanation:
How can slime molds be both unicellular and multicellular?
what factors determine if a species is fit to survive?
Answer: variation, reproduction, and heritability.
Explanation: Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population.
All species must reproduce to survive. Organisms cannot live forever, so they must reproduce to allow their species to continue to live on. Reproduction is nature's way of allowing a species to survive.
Higher heritability means the trait evolves faster; fewer generations are required for the trait to increase to the same degree as a trait with lower heritability. For this reason, genetic correlation and heritability show how a trait might change from one generation to the next and into the future.
how many DNA molecules were in the beginning of the gif?
Answer:The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides
Explanation:
i just did :)
A place where animals and plants are protected is called
A) an ecosystem
B) a refuge
C) a sanctuary
D) both B and C
Hello! can someone help me w this pls
An scientist observes a population of cheetahs on the plains in southern Africa and noticed that cheetahs have very little genetic variation. The scientists claims that the cheetahs are susceptible to extinction as a result of climate change. What is the name of the effect the scientist observed and why is it a concern ?(1 point)
Disaster effect, because the cheetahs have mutated to produce ineffective proteins
Frameshift mutation, because it only produces ineffective proteins.
Substitution mutation, because the these mutations cannot be passed to offspring
Bottleneck effect, because it means most cheetahs could succumb to the same environmental stresses
Answer:
Bottleneck effect, because it means most cheetahs could succumb to the same environmental stresses
Bottleneck effect, because it means most cheetahs could succumb to the same environmental stresses.
There is a decline in the population size in because bottleneck effect limit the genetic diversity of the species as only a small part of original population is there.What is bottleneck effect?The bottleneck effect refers to the way in which a reduction and subsequent increase in population's size affects the distribution of genetic variation among its individual.
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a section of a dna molecule that controls the thumb is called a
Answer:
gene
Explanation:
what is the general purpose of the light reactions of photosynthesis
Answer:
The overall purpose of the light-dependent reactions is to convert light energy into chemical energy. This chemical energy will be used by the Calvin cycle to fuel the assembly of sugar molecules.
Explanation:
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Uy may nag abroad ah
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how do you use fossils to see change
Fossils help show use how the earth looked like millions of years ago, Plant fossils show use what the wild life would have ate and the nutrients they had. it also helps show the bone structure of animals helping us create an actually picture of the past.
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how do you propagate trees
Answer:
The simplest method of propagating a tree vegetatively is rooting or taking cuttings. A cutting (usually a piece of stem of the parent plant) is cut off and stuck into soil.
Remove any flowers or fruit on the cutting. Trim the stem to just below where the bottom most leaf meets the stem. On each of the leaves on the stem, cut off half of the leaf. Put the end to be rooted.
Why is it important that mitosis occurs like this
Answer: The cell divides upon these processes during a process known as mitosis. In mitosis, two daughter cells are formed. It is important that each of the daughter cells contain genetic information that is identical to that of the mother cell, as well as that there be no mutations. Mitosis is Important for three main things:
> Growth
> Repair
> Reproduction
hope it helps.
To be honest i didn't get your question but i gave the basic info for Mitosis
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Explanation:
How do you know that flowers have undergone fertilizer even before they turn into fruits?
Answer:
we can know for eg an apple when u buy it and scrape the skin of the apple if you wind some waxy substance from it we can say this has been done to increase the shine so customers think this is a good apple and please do was fruit and vegetables after buying them throughly.
Can you help me (only used these terms)
Molecule
Subscript
Element
Solid
Compound
Liquid
Pure substance
Mixture
Vapor (gas)
Answer:
Subscript- tells how many of each atom there are in a chemical formula
element- a substance containing only one type of atom
solid- a state of matter where particles vibrate and are not free to move
compound- two or more atoms chemically bonded together
liquid- a state of matter in which particles slip past each other
pure substance- all of the smallest individual pieces are the same
mixture- different types of atoms or molecules that are physically mixed together
vapor- a state of matter in which molecules are far apart
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Which of the following best explains what will happen if the blood gets too cold? A) It will have a high viscosity and increased resistance. B) It will have a low viscosity and increased resistance. C) It will cause low blood pH and decrease resistance. D) It will change the shape of blood cells and decrease resistance.
It will have a high viscosity and increased resistance.
Effect of temperature on bloodLow temperatures cause narrowing of blood vessels and arteries which leads to restricting blood flow and reducing oxygen to the heart.
Our heart must pump harder to circulate blood through the blood vessels which results in increasing of our blood pressure and heart rate.
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Answer:
The correct answer is A
Explanation:
i got it correct on my flvs exam
What caused the formation of the moons layer
Answer:
when an object smashed into early Earth. .Explanation: no explanation just the answer
3. Which of the following statements best explains the purpose of Mitosis?
A. Mitosis is a cellular process that creates a copy of the cell's DNA.
B. Mitosis is a cellular process that creates new organelles inside of the cell.com
C. Mitosis is a process of cell division which creates two genetically identical daughter cells.
D. Mitosis is a cellular process that doubles the amount of chromosomes in a cell.
Answer:
C
Explanation:
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.
why is it necessary for the human body to maintain homeostasis?
Answer:
Conditions in the body must be constantly controlled because cells depend on the body's environment to live and function. The maintenance of the conditions by homeostasis is very important because in the wrong body conditions certain processes (osmosis) and proteins (enzymes) will not function properly.
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