Answer:
True
Explanation:
Tumour-suppressor proteins can be regarded protein that it's action
alleviate the potential for cancer as well as tumor formation, through modulation of cell growth by negative regulation of the cell cycle or through promotion of apoptosis. Mutation dysregulation of tumour-suppressor proteins could result to unregulated growth of cell as well as tumour development. In humans, tumor suppressor which is known as p53 is been encoded by TP53 gene. Some of the mutations that is seen in TP53 gene has mutant form of p53 as result, and there won't be room for longer function in slowing down cell cycle, and this will result in the cell becoming cancerous. Though some mutant forms of p53 has the ability to have increased resistance of cell to anticancer treatments. This is known as gain-of-function mutation.
Therefore, Tumor suppressor proteins can assist in slowing down the cell cycle under appropriate conditions
Epinephrine initiates a signal transduction pathway that involves the production of cyclic AMP (cAMP) and leads to the breakdown of glycogen to glucose, a major source of energy for cells. But glycogen breakdown is only part of the fight-or-flight response that epinephrine brings about; the overall effect on the body includes increased heart rate and alertness, as well as a burst of energy. Given that caffeine blocks the activity of cAMP phosphodiesterase, propose a mechanism by which caffeine ingestion leads to heightened alertness and sleeplessness.
Answer:
Epinephrine initiates a signal transduction pathway that involves the production of cyclic AMP (cAMP) and leads to the breakdown of glycogen to glucose, a major source of energy for cells. But glycogen breakdown is only part of the fight-or-flight response that epinephrine brings about; the overall effect on the body includes increased heart rate and alertness, as well as a burst of energy. Given that caffeine blocks the activity of cAMP phosphodiesterase, propose a mechanism by which caffeine ingestion leads to heightened alertness and sleeplessness.
Explanation:
someone pls help w this
Answer:
B.
Explanation:
what is one way that people make blue pigment? How else do you think the color blue might be made?
Answer: Some people use minerals such as Lapis Lazuli, you can also get a blue pigment from some plants.
Explanation:
Within which structure in the human body does
specialization of parts of the developing baby take
place?
A) ovary
B) uterus
D) pancreas
C) testis
Artificial Selection is another name for _____________.
Answer:
selective breeding
Explanation:
Artificial selection is also known as selective breeding. Selective breeding refers to the process of breeding plants or animals selectively.
Question 7 0410
The process of
releasing energy
is when two stoms combine to form a larger atom,
Answer here
Answer:
Nuclear fusion
Explanation:
Nuclear fusion is a process whereby the nuclei of two smaller atoms combine to form a much larger atom, accompanied with the release of energy. This is opposed to nuclear fission where a larger atom splits into simpler and smaller atoms.
According to this question, the process of releasing energy when two stoms combine to form a larger atom is called NUCLEAR FUSION. A very common example of nuclear fusion is the combination of hydrogen atoms in the sun to produce Helium atom, with the release of heat energy.
what is the greenhouse event primarily caused by
Explanation:
Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour , carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.
recall what microorganism are
Answer:
very very .. tiny tiny tiny organisms
Answer:
a microscopic organism, especially a bacterium, virus, or fungus.
Explanation:
AG CLASS NEED HELP ASAP
Which of the following refers to a plant that has been pruned and trimmed into a sculptural form?
topiary
hardscape
folly
bosquet
Answer:
I believe the ans is topiary.
Answer:
My Answer Is;
TopiaryTopiary is the horticultural practice of training perennial plants by clipping the foliage and twigs of trees, shrubs and subshrubs to develop and maintain clearly defined shapes, whether geometric or fanciful. The term also refers to plants which have been shaped in this way.
Explanation:
#CARRYONLEARNINGHelp, please. Bio assignment and is due tonight. Population density typically decreases with increasing body size. Why do you think this is the case?
You are working with an acute slice of mammalian hippocampus in a bath of artificial cerebrospinal fluid In your first experiment, you stimulate the mossy fiber projection with an extremely strong stimulus while patch clamp recording from the postsynaptic neuron. When the presynaptic axons are electrically stimulated, which of the following sequence of events occurs?
a. Opening of voltage gated calcium channels in CA1 neuron dendrites, release of glutamate containing vesicles into the synapse, potassium influx in CA3 neuron
b. Opening of voltage gated sodium channels in dentate gyrus axons, fusion of GABA containing vesicles with the presynaptic membrane, opening of GABA-gated ion channels, chloride influx into CA3 neurons
c. Opening of voltage gated calcium channels in CA3 neuron axons, fusion of glutamate containing vesicles to the presynaptic membrane, opening of voltage gated sodium channels in CA1 neuron dendrites, sodium influx into CA1 neurons
d. Opening of voltage gated calcium channels in dentate gyrus axons, fusion of glutamate containing vesicles to the presynaptic membrane, opening of AMPA receptors in CA3 neuron dendrites, sodium influx into CA3 neurons
Answer:
d. Opening of voltage gated calcium channels in dentate gyrus axons, fusion of glutamate containing vesicles to the presynaptic membrane, opening of AMPA receptors in CA3 neuron dendrites, sodium influx into CA3 neurons.
Explanation:
From the little information given above in the excerpts, it could be seen that, the sequence of events that would occur when the mossy fiber is stimulated with an extremely strong stimulus is what was given above.
1. Which of the following most accurately complete the statement below -
An increase in biodiversity result in
A. More competition for abiotic factors
B. Less competition for biotic factors
C. An increase in the sustainability of an ecosystem
D. A decrease in the sustainability of an ecosystem
Answer:
The correct answer is - C. An increase in the sustainability of an ecosystem.
Explanation:
Biodiversity is the variety of different biological species and populations on the earth or in an ecosystem. Biodiversity helps in maintaining health by providing food and other resources. Higher biodiversity healthier the earth.
Sustainability is the ability to maintain the ecological process and its structure and function in case of external stress for a longer time. The more sustainability of an ecosystem the healthier the ecosystem. The biodiversity of an ecosystem provides sustainability to the ecosystem. An increase in biodiversity will lead to a more sustainable ecosystem.
Which of the following sources of noise pollution has the greatest likelihood of leading to hearing loss
for exposed individuals in an urban area?
Your answer:
car horns
conversation
pneumatic drills
trains passing by
O traffic on a residential street
Answer:
traffic on a residential street
When H. pylori was first discovered, researchers doubted the finding. It was thought that the acidic environment of the stomach was too hostile for microbes to thrive. Newer research using genetic analysis and culture techniques has revealed that there is a diverse gastric microbiota. Of the options below, what is the only one that does not involve genetic analyses?
A. Sequencing approaches have shown that the normal microbiota includes Archaea and provide mechanisms for studying their distribution.
B. Knowledge of growth rates allows researchers to predict responses to changing conditions.
C. Knowledge of the microbiota from sequencing efforts has been used to improve cultivation techniques.
D. Genetic analyses have been used to examine the dominant species in different individuals, showing that it varies from one individual to another.
Answer:
B. Knowledge of growth rates allows researchers to predict responses to changing conditions.
Explanation:
Genetic analyzes are tests that try to identify the genetic composition of a living being, being able to analyze the DNA in a profound way and obtaining crucial information about the organism. The most common way to carry out a genetic analysis is through the sequencing of genes, since they are segments of DNA molecules. Therefore, we can conclude that among all the response options presented above, all that refer to the sequencing of genes should be discarded. Thus, we can see that option B is the correct option, since the analysis of growth rates does not involve a genetic analysis.
6
6.
Which behavior can help animals establish a
territory?
A. A caribou herd migrates seasonally.
B.
A scent trail leads ants to a food source.
C.
A wolf pack howls to warn other wolves to
stay away.
D.
A honeybee society divides the work between
its members.
whoooooo is goo day 72819
Answer:
Hi how are you doing today Jasmine
Answer:
Thank you and have a good day.
Fresh steak is said to have both negative and positive redox potential. Discuss how the redox potential affects the microbial ecology of the food
Answer:
Increases redox potential decreases microbial growth inside food.
Explanation:
The redox potential is considered as one of the most complex indicators of the physical conditions of microbial cultures. The measurement of redox potential could be very useful for the determination of qualitative and quantitative parts of the microbial contamination. During the bacterial growth, the redox potential of the medium decreases. Redox potential is a measure of the tendency of a biological species which can be acquire or lose electrons through ionization. If the redox potential of the medium is increases, there will be lower growth of microbes in the food and vice versa.
Please answer the questions that have “type here”
Earth science
Answer:
#4 - the lower the pressure the higher the altitude
#12- Light from the Sun passes through the glass roof to heat plants and the ground inside the greenhouse. These objects then emit infrared radiation, which is absorbed in the glass roof. Thermal energy is trapped in the greenhouse, keeping the building warm.
#13 - acid rain
#14- 10 and 25
#15- clouds, weather, etc
Explanation:
I had to find and watch the video to fill out the ones you put "type here". Hope my answers help you. And pls give me a Brainliest. Thank you.
QUESTION 4
When the 'wind is knocked out of you", that air that was knocked out of you was actually part of your
O IRV
O ERV
ORV
O TV
Which of the karyotypes shown is from a normal female?
Answer:
Karyotype C is from a normal female
PLEASE HELP TO SOLVE IT I HAVE AN EXAM !!!
An organism has 2 chromosomes in its cells (the diploid number is 2). Calculate the number of chromosomes in a cell in the 5th generation if egg and sperm cells were diploid
Answer:
64
Explanation:
Since the cell has two chromosomes and a diploid number of 2, in each generation, the cell doubles. In the first generation, we have two cells, in the second generation, we have 2 × 2 cells ,in the third generation, we have 2 × 2 × 2 cells. It follows that we have 2ⁿ cells in each generation where n represents the generation.
So, in the fifth generation, n = 5, so the number of cells is 2⁵ = 32.
Since we have 2 chromosomes in each cell, the number of chromosomes in the 32 cells in the 5th generation is 2 × 32 = 64 chromosomes.
3
Scientists discovered a new organism that thrives on the leaves of palm trees. The organism
is eukaryotic, unicellular, and reproduces through binary fission. It also makes its own food
through photosynthesis. This organism's characteristics most closely match the characteristics
of which Kingdom?
(2 points)
Answer:
Plant
Explanation:
The organism characteristics most closely match to characteristics of plant kingdom
Which of the following stars correctly shows the relationship between force from fusion and force of gravity in a Main Sequence star?
Answer:
E
Explanation:
E
Part of an important cellular process involving a DNA strand is modeled below.
What is the purpose of this cellular process?
Answer: Cellular respiration is the process by which cells in plants and animals break down sugar and turn it into energy, which is then used to perform work at the cellular level.
Explanation: In simpler words, it provides energy for the cell to do basic needs.
Consider the following alleles: X1, X2, X3. The different alleles encode enzymes with slightly different ratesof reaction, but are otherwise identical. Consider a population that is sampled for these alleles at two different times. Below are the genotypes for each individual in this population at time 1. For the Time 1 population calculate the allele frequencies and genotype frequencies.(4points)
Complete question:
Consider the following alleles: X1, X2, X3. The different alleles encode enzymes with slightly different rates of reaction, but are otherwise identical. Consider a population that is sampled for these alleles at two different times. Below are the genotypes for each individual in this population at time 1. For the Time 1 population calculate the allele frequencies and genotype frequencies.(4points)
Time 1: Genotypes for each individual in this population
1XX1, X1X2, X2X2, X2X3, X2X2, X2X2, X1X3, X2X2, X1X1, X2X2, X3X3, X2X3, X2X3, X2X3, X2X3, X1X3, X1X1, X1X2, X1X3, X1X2, X1X2, X1X3, X1X1, X2X1, X1X1, X1X3, X3X3, X2X2, X3X3, X2X2
Answer:
allelic frequencies
• p = 0.34
• q = 0.4
• r = 0.27
genotypic frequencies
• X1X1 = 0.17
• X1X2 = 0.17
• X1X3 = 0.17
• X2X2 = 0.23
• X2X3 = 0.17
• X3X3 = 0.1
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
The sequence of mRNA is AGUACA. Which of these is the sequence of
tRNA? *
UCAUGU
AGTACA
AGUACA
TCATGT
Answer:
I think the answer is ucaugu
What happens to water on Earth’s surface as it is heated by the sun? What is this process called?
Explain your answer.
Answer:
As the water is heated by the sun, water vapor is created and released into the air (process is called evaporation)
Explanation:
The heat coming from the sun heats up the water droplets and turns those droplets from a liquid into a gas (water vapor)
Can someone help me with the order of the carbon cycle ?
Answer:
First what is it? Carbon cycle is, nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.
1.Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.
2.Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.
3.Carbon moves from plants and animals to soils. When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground. Some is buried and will become fossil fuels in millions and millions of years.
4.Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration.
5.Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels. Of this massive amount, 3.3 billion tons stays in the atmosphere. Most of the remainder becomes dissolved in seawater.
6.Carbon moves from the atmosphere to the oceans. The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.
Explanation: This should help
Which of the following is necessary for a geothermal plant to function?
Your answer:
biomass
fossil fuels
heated rock
hydrogen
sunlight
Answer:
Geothermal power plants use hot water to generate steam to turn a turbine for electricity generation. Since the heat of the water is the essential component of a geothermal power plant, these active systems are typically located where hydrothermal reservoirs exist.
Which of the following shows the correct progression of organisms on the planet?
a. Reptiles, fish, hominins
b. Fish, reptiles, hominins
c. Prokaryotes, angiosperms, gymnosperms
d. Reptiles, mammals, fish
The correct progression of the organisms listed is : ( B )
Fish, reptiles, hominins ( B )The existence of organisms on the planet started millions of years ago and these organisms gradually progressed from one type to another.
Oldest organismThe first and oldest organisms that existed on earth where the prokaryotes which where in existence around 3800 million years. But following the correct order of progression of organisms as represented in the options is :
Fish Reptiles HomininsThis is because Fish existed about 450 million years before Reptiles which started existing about 315 million years while Hominins also known as Homosapiens where among the last organisms to inhabit the planet through their existence.
Learn more about Organism progression : https://brainly.com/question/14694305
Answer:
the answer is (B) fish, reptiles, and hominins
Explanation:
