1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirill115 [55]
3 years ago
5

In humans, methylation of chromosomal DNA is a signal that often leads to

Biology
1 answer:
Ulleksa [173]3 years ago
7 0

Answer:

The correct answer will be option-formation of heterochromatin

Explanation:

Methylation of DNA is the epigenetic mechanism which controls the expression of a gene by adding a methyl group to the cytosine bases in eukaryotic DNA.

The methylation of DNA converts the cytosine residues to the  5-methylcytosine catalysed by DNA methyltransferase enzyme. This results in the silencing of the gene and transcription get switched off.

Studies have shown that DNA methylation is involved in the formation and maintenance of the heterochromatin structure which is the condensed form of the chromatin in which transcription is switched off.

Thus, the formation of heterochromatin is the correct answer.

You might be interested in
In the video, the whale exhaled carbon dioxide, which is made of one carbon atom and two oxygen atoms. List two things a scienti
-Dominant- [34]

Answer:

One thing that a scientist might ask about the movement of carbon dioxide through the whale and its surrounding is “how did the whale get the carbon dioxide?”. Another thing that a scientistmay ask about this is “how does the carbon dioxide affect the ecosystem?”

3 0
3 years ago
A food worker needs to thaw a package of ground beef
Hunter-Best [27]

Answer:

Under cold water

Explanation:

This is how me and my family thaw beef

8 0
2 years ago
What is the probability that a hybrid individual with the genotype AabbCcddEeFf will produce a gamete that has the genotype abCd
PSYCHO15rus [73]

Answer:

6.25%

Explanation:

Find the number of different gametes that can be produced

number of gametes produced = 2^n

n is the number of allele pairs that are heterozygous

there are 4 heterozygous allele pairs, these are: Aa, Cc, Ee and Ff

2^4 = 16

abCdeF is one of the 16 genotypes that could be produced

to find the percentage, divide 1 and 16 and multiply by 100

1 ÷ 16 = 0.0625

0.0625 × 100 = 6.25

4 0
3 years ago
Scientists collected data about the relative abundance of birds called barn swallows in the affected area after the Chernobyl di
arlik [135]

A

it says the swallows had Continued reduced reproductive success over time.

8 0
3 years ago
The domain that includes organisms with true nuclei and membrane-bound organelles is called *
Hunter-Best [27]
Eukarya. Eukaryotes are the only organisms that have true nuclei and membrane-bound organelles, though some bacteria have a pseudo-nuclei.
The reason why only eukaryotes have true nuclei and membrane-bound organelles is because only eukaryotes have figured out how to create so much energy through the mitochondria, which is required for high compartmentalization. 
7 0
3 years ago
Other questions:
  • Assuming that transcription and translation both proceed from left to right, which is the correct orientation of the DNA templat
    7·1 answer
  • Use bedrock in a sentence.
    7·1 answer
  • Cells spend the majority of their time in?
    12·1 answer
  • Name the three main parts of a human cell?
    15·1 answer
  • Widespread hunting of predators may results in _____.
    7·2 answers
  • a layered metamorphic rock made of light and dark bands of material is a) schist b)basalt c) gneiss d)granite
    7·2 answers
  • Please rank the following ecological levels of organization in ascending order.(1 point)
    14·2 answers
  • There are 20 squares and 4 triangles.what is the simplest ratio of triangles to squares?
    6·1 answer
  • What are two of the jobs of proteins in the cell membrane?
    14·1 answer
  • Which of the following describe ways septic tanks potentially contaminate drinking water?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!