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
lesantik [10]
2 years ago
14

Various sigma factors play a role in gene expression by.

Biology
1 answer:
Anna [14]2 years ago
8 0

Answer:

Sigma factors bind to the promoter region of a particular gene and facilitating the binding of RNA Polymerase to the promoter region (formation of the RNA polymerase holoenzyme complex) in order initiate transcription of the gene.

Put simply - Helps RNA Polymerase do it's job.

You might be interested in
Which stem cells are capable of only limited differentiation?
yKpoI14uk [10]
Hihi!

Embryonic stem cells <span>are capable of only limited differentiation! They</span><span> can become all cell types of the body because they are </span>pluripotent<span>. Also a</span>dult stem cells<span> are thought to be limited to differentiating into different cell types of their </span>tissue<span> of origin.</span>

I hope I helped!
-Jailbaitasmr
4 0
3 years ago
Read 2 more answers
How does cellular information pass from one generation to the next? Include meiosis in your answer.
JulsSmile [24]

Meiosis in reproductive organs (testes and ovary) produce gametes. Each human cell including reproductive cells contains 23 pair of chromosomes. Meiosis separates the two chromosomes from each pair thus, each gamete receives only one copy of each chromosome. Therefore, each gamete has 23 new chromosomes, one from each of the 23 pairs. During meiosis, exchange of chromosome segment between copies of a pair of chromosomes. The exchange of chromosome segments creates new combinations of genes which enhances genetic variability within a species.

6 0
2 years ago
The thickest part of the crust occurs in _____.
lana [24]

Answer:

Option (3)

Explanation:

The continental crust is usually thick because it has an average thickness of about 35-40 km. In the high mountain ranges, it is the thickest, forming about 80 km on an average. These are formed when two continental plates form a sandwich pattern by sharing a convergent type of plate boundary.

For example, the thickest part of the crust is the Mt. Everest which lies in the great Himalayan range, which has started to form about 50 million years back. It is geologically the most recent mountain range.

The older mountains are continuously eroded in the geological past, as a result of which the height of the mountains is affected.

Thus, the correct answer is option (3).

6 0
3 years ago
Read 2 more answers
Which source is the most reliable
Maru [420]
What are the answer choices?
6 0
3 years ago
An ecosystem usually contains a single kind of habitat.<br> True or false
Gelneren [198K]
False, typing out for 20 spaces to be taken up
3 0
2 years ago
Other questions:
  • In what ways can you see microscopic organisms responding to stimuli? besides moving
    5·1 answer
  • Researchers have reported that the number of different species of fish found in certain areas of the ocean has been greatly redu
    13·1 answer
  • In the salvage of purines, hypoxanthine-guanine phosphoribosyl transferase (HGPRT) is responsible for which of the following pro
    13·1 answer
  • * The uterus lining<br>the fertilised ovum.​
    6·1 answer
  • At what pH values is lipase likely to be denatured? justify your answer
    15·1 answer
  • Mrs. Zerlinsky wrote a chemical equation on the board and asked her class what should be changed to make it correct. She wrote:
    15·2 answers
  • What is the molecule in this image?
    8·1 answer
  • Help help please!!!!
    7·1 answer
  • 20.The first diagram below shows an original sequence of DNA. The second diagram shows a mutation that occurred when the DNA was
    15·2 answers
  • Gigi was trying to classify an animal as a mammal. What would be the best characteristic of a mammal?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!