The mechanism through which a parents gene is turned off, through the attachment of a methyl group to that parent's DNA is called :

A) methylation

B) mutation analysis.

C) cross contamination.

D) spermatogenesis or oogenesis.

Answers

Answer 1

Answer:

the answer is a methylation

Explanation:


Related Questions

Marvin blows up a balloon but lets go of it. The air inside is released and the balloon goes up into the air. What best describes what happens?

Answers

Answer:

The thrust of the air propels the balloon in the opposite direction

Explanation:

Answer:the thrust goes the opposite direction

Explanation: the air is blowing one way while the push of force thrusts the balloon the other way

Which ecosystem is found mainly in warm tropical waters?coral reefs or kelp forest

Answers

Answer:

coral reefs

Explanation:

they thrive better in warmer waters.

The right answer is coral reefs

In fruit flies, the gene for eye color is located on the X chromosome, and the red eye allele (R) is dominant
to the white eye allele (r). A carrier female is mated with a male fly with genotype X
rY. Which of the
following statements best describes the expected outcome of the cross?
a. The chance of an offspring having red eyes is 75%
b. The chance of an offspring having white eyes is 50%
c. The chance that a male offspring will have white eyes is 0%
d. The chance that a female offspring will have red eyes is 100%

Answers

Answer:

b. The chance of an offspring having white eyes is 50%

Explanation:

So the genotype of the male fly is X^r Y. This means the male has white eyes because he only has one X chromosome, so he will express whatever allele is on that chromosome.

The genotype of the female fly, though, is X^R X^r. This is because carriers are heterozygous for traits, and the sex chromosomes of most females is XX (with some exceptions, like XXX, or X (Turner syndrome)).

If we cross this, what are the outcomes? Do a Punnett square. You get the genotypes of X^r X^R, X^r X^r, X^R Y, and X^r Y. The expected phenotypes are a red eye female, white eye female, red eye male, and white eye male.

Now, let's look at the choices:

A.: The chance of an offspring having red eyes is not 75%; it is 50%.

B.: The chance of an offspring having white eyes is 50%!!!

C.: The chance that a male offspring will have white eyes is 50%, not 0%.

D.: The chance that a male offspring will have white eyes is 50%, not 100%.

Sooo, it's B!

PLEASE HELP I WILL BE GIVING THE BRAINLIEST AND 15 POINTS!!!!!!!!

Ron drew this picture to illustrate photosynthesis.
Which choice shows the labels he should use on his picture to show what happens during this process? The items in the choices are in order, 1 through 5.

A. sunlight, oxygen, water, glucose, carbon dioxide
B. sunlight, carbon dioxide, water, glucose, oxygen
C. sunlight, carbon dioxide, water, oxygen, glucose
D. carbon dioxide, sunlight, glucose, water, oxygen

Answers

Answer:

Your answer should be B or C.

Explanation:

pls help thanks explain your answer. ​

Answers

Answer:

Explanation:

There must be a lot of producers due to the fact that only 10% of energy passes onto the next level. The producers need to keep up with the energy supply so there are many of them.

ASAP WILL GIVE BRAINLEST
Before the discovery of the microscope, Linnaeus could classify organisms only into two kingdoms. More kingdoms were introduced later. What characteristic of science does this show?

It is permanent.
It is changeable.
It is always accurate.
It is based on predictions.

Answers

Answer:

It's changeable

Before the microscope, Linnaeus classified organisms only separated in two kingdoms, while more were introduced later. So, they were only classified in two kingdoms, they can be changed and  classified to more than  two.

Answer:

It is changeable.

Explanation:

Losing 100 orangutans a week is an astonishing number. Within your lifetime they could become extinct in the wild because of human impact. We use palm sugar in many products consumed and other things. Do you feel that it could be said we have a parasitic relationship with orangutans? Defend your answer.

Answers

if the orangutans eat the fruits, basically their place of residence is their only means of obtaining and if the human continues to cut down trees and destroy forests, the fruits will be lost and the monkeys will starve and thus could become extinct.

hope this help (>-<)

The process of cellular respiration takes place mostly in the _______.
A.
lysosomes
B.
nucleus
C.
mitochondria
D.
endoplasmic reticulum

Answers

Answer:

C)mitochondria

Explanation:

The cellular respiration occurs in the mitochondria.The anaerobic process of glycolysis takes place in the cytoplasm of the cell.

Answer:

c. mitochondria

Explanation:

Imagine the grasshoppers population was gone. What would happen to the black and white bird population?​

Answers

Answer:

The black and yellow bird population would begin to starve and would be forced to find alternative food, or die off. This would then send ripples through the food web, causing almost every species to be effected by the grasshoppers being gone.

Plz answer will give brainliest, no scammers plz
Conclusion

Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.

What caused the tree bark to become darker?

In the lab simulation, which color peppered moth was able to have the higher rate of survival on the light bark?

In the lab simulation, which color peppered moth was able to have the highest rate of survival on the dark bark?

During the Industrial Revolution, explain what caused the population of light-colored peppered moths to decrease and the population of dark-colored peppered moths to increase over time. Be sure to include how the ability to survive and reproduce impacts the process of natural selection.

Predict which color peppered moth would have a better chance of survival in your neighborhood? Explain why.


Answers

Answer:

conclusion

Explanation:

hope this helps

Answer:

1. What caused the tree bark to become darker than it was, was the soot from factories in the Industrial Revolution.

2. The light-colored peppered moths have a higher rate of survival on the light bark since it's the same color as it and can't be easily spotted.

3. The dark-colored peppered moths have a higher rate of survival on the dark bark since it's the same color as it and can't be easily spotted.

4. What caused the population of light-colored peppered moths to decrease was the color of the tree bark. The tree bark was dark from the soot from factories. If the tree bark was a dark color, then light-colored peppered moths are more easily spotted, and since the tree bark is a dark color the dark-colored peppered moths can hide more easily, and not be as spotted than the light-colored peppered moths.

5. You have to answer this question. If the tree bark is a dark color, then the dark-colored moths have a better chance of surviving, but if the tree bark is a light color, then the light-colored moths have a better chance of surviving.

Before mitosis begins, which happens before the nucleus starts dividing?
The DNA replicates.
The cytoplasm separates.
The sister chromatids separate.
The homologous chromosomes cross over.

Answers

Answer:

The DNA replicates.

Before mitosis begins, the DNA replicates. During the S phase of interphase, which precedes mitosis, the DNA in the nucleus undergoes replication, resulting in the formation of identical sister chromatids.

This ensures that each daughter cell produced during mitosis receives a complete set of genetic information.

After DNA replication, the cell enters the mitotic phase, during which the nucleus divides and the replicated DNA is distributed to the daughter cells.

The cytoplasm separates during cytokinesis, which occurs after mitosis and is not directly related to events before nucleus division. The separation of sister chromatids occurs during anaphase of mitosis, not before the nucleus starts dividing.

Thus, the process of homologous chromosomes crossing over occurs during meiosis, not mitosis.

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What might happen to the Burmese python population over time as it reaches or
surpasses its carrying capacity in South Florida? How might other organisms in the
ecosystem be affected? What might happen to the population sizes of various types
of organisms in the Everglades?

Answers

Answer:

If the Burmese Python surpasses its carrying capacity, the other organisms might not have enough food, or there is barely a chance of survival for the pythons' prey. The population sizes of other organisms might go down, and go to..extinction :/.

Explanation:

If the Burmese Python exceeds its carrying capacity, other creatures may starve or the pythons' prey may not survive. Other creatures' populations may go extinct.

What is carrying capacity?

The typical number of individuals belonging to a species that are found in a given ecosystem is one definition of carrying capacity. The population size of the species is restricted by environmental conditions such as the availability of sufficient food, shelter, water, and mates. In the event that these requirements are not fulfilled, the population will continue to decline until the resource levels recover.

Therefore, if the Burmese Python population grows above its carrying capacity, the other creatures in the area may not have access to enough food, and the prey of the pythons will have an extremely low chance of surviving. It is possible that the population sizes of other organisms will decrease, leading to their eventual extinction.

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The picture shows a girl with a widow's peak.



The girl has a widow's peak because of her
genes, which are located in chromosomes in her cells' nuclei.
hormones, which are passed on from previous generations.
nutrition, and indicates her needs are met.
environment, in which it is an advantage.

Answers

What’s the question so we can help you?

So i forgot what the genetic code is and how its read can somebody please be kind and help me..

Answers

Answer:

i d

Explanation:

DescriptionThe genetic code is the set of rules used by living cells to translate information encoded within genetic material into proteins. adenine(A), cytosine (C),guanine(G), thymine(T) are the “letters” of the DNA code.

Examine the picture of an onion root tip with cells in various stages of the cell cycle. A student claims that interphase is the longest stage of the cell cycle. Another student claims that mitosis is the longest stage. Using evidence from the photo, determine which student is correct and why. A) Mitosis is the longest stage because anaphase requires more time to separate chromatids. B) Interphase is the longest stage because chromosomes are visible in the majority of the cells. C) Mitosis is the longest stage because the majority of the cells in the photo are replicating their DNA. D) Interphase is the longest stage because the majority of the cells in the photo have uncondensed chromatin and are not dividing.

Answers

Answer:

B

Explanation:

the longest phase in the cell division is interphase because the DNA replication occurs in this phase

As per the image interphase is the longest stage because the majority of the cells in the photo have uncondensed chromatin and are not dividing. The correct option is D.

What is cell cycle?

The cell cycle, also known as the cell-division cycle, is the sequence of events that occurs in a cell that causes it to divide into two daughter cells.

A cell cycle is the series of events that takes place in a cell as it grows as well as divides.

A cell spends the majority of its time in what is known as interphase, where it grows, replicates its chromosomes, and prepares for cell division. The cell then exits interphase, goes through mitosis, and divides completely.

Interphase is the longest stage, according to the image, since the maximum of the cells in the photo have uncondensed chromatin as well as are not dividing.

Thus, the correct option is D.

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Your question seems incomplete, the missing image is attached below:

What are two main sources of genetic material found in viruses?

Answers

Answer:

Most have RNA or DNA as their genetic material, but they also consist of a virion, which has nucleic acid and a shell of protein.

Explanation:

Which process(es) increases genetic diversity in a population?
Question 8 options:

a)

Natural selection

b)

Asexual reproduction

c)

Mutation & Sexual Reproduction

d)

Genetic drift

Answers

I know that C.) Is one process that increases genetic diversity in a population.

Answer:

it is B, C, D


Replicating the texture of shark skin to inhibit the ability of bacteria to attach to medical surface is an example of what application of biotechnology

A.Biochemical engineering
B. Biomimicry
C. Bioprospecting
D. Environmental biotechnology

Answers

Answer:

Biomimicry

Explanation:

How do funguslike protists reproduce

Answers

Answer:

Sporulation

Explanation:

Simply put spore formation.

True or False: Too much carbon in seawater prevents clams, snails, and other
sea animals from growing their shells.

Answers

Answer: False................

Answer:

False

Explanation:

Carbon is one of the most abundant resources for sea animals, and they actually need a lot of carbon to grow their shells.

The different functions of the skeletal system include all of the following EXCEPT: *
a) Forms blood cells
b) Protects internal organs
c) Stores hormones
d) Assists movement

Which type(s) of muscle can contract without stimulation from the nervous system? *
a) skeletal only
b) skeletal and smooth
c) smooth and cardiac
d) cardiac only

Which of the following are events following fertilization? (Check all that apply. There may be more than one answer). *
a) Embryo develops into the fetus
b) Zygote cell rapidly divides
c) Embryo embeds into uterine wall
d) Zygote travels down the fallopian tube toward the uterus

Answers

Number 1 is C
And im not sure about the rest :(

Storing hormones, smooth and cardiac muscles are the correct answers.

Storing hormones is not function of skeleton system. Skeleton system protects internal organs such as heart, kidney and lungs etc. It is also responsible for the movement of the muscles as well as produces blood cells because of the presence of bone marrow.

Smooth and cardiac muscles can contract without nervous system stimulation because they are involuntary Muscle which is beyond the control of the nervous system so we can conclude that storing hormones, smooth and cardiac muscles are the correct answers.

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What are the different sensory structures and what are each of them able to
detect?​

Answers

Answer;

Chemoreceptor,Thermoreceptors,Mechanoreceptors,Photoreceptors

Explanation:

Chemoreceptors detect the presence of chemicals

Thermoreceptors detect changes in temperature

Mechanoreceptors detect mechanical forces.

Photoreceptors detect light during vision.


Sleet is precipitation made of small particles of ice. How does sleet form?

Answers

Answer:

Sleet is pellets of ice that form when snow falls into a warm layer and melts into rain. The rain then falls into a freezing layer of air that is deep enough to refreeze the raindrops into pellets. Sometimes the snow does not completely melt and the partially melted snowflakes refreeze into snow pellets.:

hope this helps!

Answer:

There must be a layer of air near the ground whose temperature is below freezing, where water turns to ice. Above this layer of freezing air must be a layer of warmer air. As snow falls through the warm air, it melts or partially melts into raindrops. It forms sleet before it reaches the ground.

Explanation:

:3

Do roots, leaves, or stems do more in photosynthesis in plants?

Answers

Answer:

Leaves

Explanation:

Leaves help are flat and thin which makes it easy for them to take in more light, which makes them play the biggest rold in photosynthesis.

Jacque is hiking in the mountains and sees a very large and colorful rock layer. It looks different than the surrounding rock layers. What is the best way for Jacque to investigate what the environment was like when this rock layer was deposited?

Jacque could measure the height of the rock layer.

Jacque could check if the rock layer has fossils in it.

Jacque could look at the color of the surrounding rock layers.

Jacque could chip off a chunk of rock from the rock layer and smell it.

Answers

Answer:

Check if the rock layer has fossils in it.

Explanation:

The rock layer from the inside out and the fossils will tell you how old the rock is.

Jacque could check if the rock layer has fossils in it, as the presence and types of fossils can often provide clues about the environment in which they were formed.

What can a rock layer tell about the environment?

To investigate what the environment was like when a rock layer was deposited, there are several approaches that can be taken:

Look for clues in the rock layer itself: The rock layer itself can often provide clues about the environment in which it was formed. For example, the presence of certain minerals or fossil types can indicate the presence of specific conditions, such as warm or cold temperatures, or a marine or terrestrial environment.

Examine the surrounding rock layers: The rock layers above and below the rock layer of interest can provide additional context and clues about the environment. For example, if the surrounding layers are sedimentary rocks, such as sandstone or shale, it may indicate that the area was once covered by water.

Use rock dating techniques: As mentioned earlier, techniques like radiometric dating and relative dating can help determine the age of a rock layer and provide insight into the environment that existed at the time it was formed.

Conduct additional analyses: Depending on the type of rock and the questions being asked, it may be possible to conduct more detailed analyses, such as chemical or isotopic analyses, to gather further information about the conditions under which the rock formed.

Consider the current location of the rock layer: The current location of the rock layer can also provide clues about the environment in which it was formed. For example, if the rock layer is found in a mountain range, it may have formed in a tectonically active area, while a rock layer found in a flat, low-lying area may have formed in a more stable environment.

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Dimples are dominant to no dimples. Determine the phenotype probability for the offspring of a
heterozygous female and a homozygous dominant male.
O 50% dimples, 50% no dimples
75% dimples, 25% no dimples
0 100% dimples, 0% no dimples
25% dimples, 75% no dimples

Answers

50% of dimples and no dimples

Answer:

B

Explanation:

Which characteristics can be used to classify the tree as a gymnosperm rather than “any other type of seed” plant?

1. Naked seeds
2.green leaves
3. Thick bark
4.tall height
Can someone help me !plzz

Answers

Answer:

1) Naked seeds

Explanation:

Answer:

1

Explanation:

A volcano erupts, killing all the organisms in an area. Eventually, small plants
grow but are eventually replaced by larger plants. What is the name for this
process?
O
A. Population
O
B. Cyclical
O
O
C. Succession
D. Biodiversity
PLEASE ANSWER FAST

Answers

Answer:

Succession.

Explanation:

Answer:

Succession

......................

-Answer the question from the picture

-Answer this question correctly and fast

Answers

I believe the sharks are important because it keeps down over population

(I’m not sure it’s right sorry)

Answer:

yes i agree with him

Explanation:

What is a drug?
What is the difference between medicines and recreational drugs ?
Give two examples of legal recreational drugs?
Give two example of illegal (against the law) drugs?
What is a depressant?
Give two effects that a depressant drug has on the body.
Give two long term effect of taking a depressant drug.
What is a stimulant?
Give one example of a legal stimulant and one example of an illegal stimulant.
What are the effects of taking a stimulant?

Answers

Answer:

recreational - enjoyment i.e. weed, alcohol (legal)

shrooms, lsd (illegal)

liver or lung failure

stimulant- helps asthma and other things example. dexedrine

the effects of taking stimulants is loss of appetite, increased heart rate, elevated blood pressure and body temperature, interrupted sleep patterns, panic, hallucinations, and irritability.

also a drug is a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body.

Drug- type of medication used to help pain or to get over something

#2- one is just for fun and one is to actually help you

#3- Alcohol Beverages or Cigarettes/ Tobacco

#4- Molly or Cannabis

#5- sleeping pills

#6- will make you depressed, sad

#7- I don’t know

#8- speed up the brain

#9- legal- nicotine, illegal- cocaine I think

#10- can make you feel more awake, alive
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