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
kap26 [50]
3 years ago
7

Which of the following is an example of post-transcriptional control of gene expression?a. gene amplification contributing to ca

ncerb. the removal of introns and alternative splicing of exonsc. the addition of methyl groups to cytosine bases of DNAd. the binding of transcription factors to a promotere. the folding of DNA to form heterochromatin
Biology
1 answer:
MAVERICK [17]3 years ago
7 0

The correct answer is: b. the removal of introns and alternative splicing of exons

Post-transcriptional regulation includes processes of regulation between transcription and translation such as RNA splicing, capping, addition of poly-A tail,  RNA editing.

RNA splicing represents the process of RNA processing in which newly synthesized pre-mRNA transcript is converted into a mature mRNA. This process occurs only in eukaryotic organism and includes the removal of introns and joining together the exons. RNA splicing might occur during or immediately after transcription and it is performed by spliceosome (complex of small nuclear ribonucleo proteins).

Alternative splicing is a regulated process in which a single gene can code for multiple proteins because particular exons of a gene may be included within or excluded from the final mRNA.

You might be interested in
The exchange of gases within the cells of the body is known as
Ierofanga [76]

Explanation:

The exchange of gases between the blood and tissue cells is internal respiration. Finally, the cells utilize the oxygen for their specific activities: this is called cellular metabolism, or cellular respiration. Together, these activities constitute respiration.

3 0
2 years ago
Read 2 more answers
When a cell phone overheats, why is it important to find out whether the heat is coming from bottom of the phone or from the oth
Reptile [31]
<span>It is important to determine weather the heat is coming from the bottom of the phone or from a different area because if you feel the heat is being emitted from the bottom of the phone, this is indicative of a battery overheating. If heat comes from other areas, it often means the phone itself is overheating.</span>
8 0
3 years ago
What happens when lakes are acidified?
Elena L [17]
The best answer is B - the fish die. Acid rain flows through soils. If the soil part of a watershed, aluminum is released from the soil and into the streams and lakes located in that watershed. This lowers the pH in the lake from between 6 and 8 (which is the normal pH in lakes and streams) to less than 5. Both increase of aluminum and lower pH are directly toxic to fish and they kill off fish populations
7 0
3 years ago
Read 2 more answers
Please help! c:
patriot [66]
I think I understand even without the picture. I'll add a picture of the Punnett Square filled in, but what you're crossing is

Tt  x  tt (heterozygous crossed with a homozygous recessive)

The ratio you get in the end is 2 heterozygous (Tt) and 2 homozygous (tt) offspring, so the ratio is 1:1.

So the percentage of offspring that are homozygous recessive is 50%.

8 0
3 years ago
write two paragraphs in your own words that compare and contrast how you (humans) communicate with sound and how dolphins and ot
Darya [45]

Whales use their lower jawbone to the middle ear. whereby they can ear clearly while they are in the water. Human ears and dolphins ears they work the same . They receive sound directly from the air.

In similar way dolphins and human ears are placed in basic anatomical location which is same as on the head. Without a medium hearing is not possible.

The medium sound for human is air. Sound travels 343 meters per second in air and 147 meters per second in water. The most effective way of transmitting sound waves is through water.

We can say that the sound will be fast to travel in medium if the molecules are closer.

6 0
4 years ago
Other questions:
  • Factors that control traits are called what?
    7·1 answer
  • Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
    6·1 answer
  • In what ways might anna's infection have played a role in her untimely death?
    5·1 answer
  • What is identical for every cell in the 4 organs?
    14·1 answer
  • Which statement about oil is not true
    11·1 answer
  • Which of the following is NOT a tissue type? *
    10·1 answer
  • Your, mouth, esophagus, stomach, and intestines help to form which of the following? A: cell be: tissue C: organ or D: organ sys
    15·2 answers
  • Use the drop-down menus to indicate which endocrine structure is being described in each case.
    15·2 answers
  • According to the Punnett square, offspring from these two parents have a ____________ chance of inheriting two b alleles. Indivi
    15·1 answer
  • _____ is a molecule of oxygen with <br><br><br> _______oxygen atoms instead of 2.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!