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
mariarad [96]
2 years ago
8

What happens to RNA polymerase II after it has completed transcription of a gene? a. It begins transcribing the next gene on the

chromosome. b. It is free to bind to another promoter and begin transcription. c. It is degraded. d. It joins with another RNA polymerase to carry out transcription.
Biology
1 answer:
Over [174]2 years ago
7 0

The correct answer is: b. It is free to bind to another promoter and begin transcription

Transcription is the first step of gene expression in which DNA molecule is copied (transcribed) into RNA (mRNA) by RNA polymerase. The process of transcription is divided into three phases:

1. Initiation

• RNA polymerase with transcriptional factors bind to gene promoter  

• RNA polymerase unwinds DNA double helix (transcription bubble is formed)

2. Elongation

• RNA polymerases adds nucleotides complementary to DNA  

3. Termination

• RNA polymerase gets to stop codon (transcribes a sequence of DNA known as a terminator)

• Formed complementary RNA strand is released from DNA-RNA complex.

RNA polymerase is also released and can transcribe some other gene by binding to its promotor. RNA polymerase will transcribe just the genes whose products are needed at a particular moment.

You might be interested in
Which of the following statements is true for a eukaryotic cell?
Nutka1998 [239]
I think the correct answer from the choices listed above is option B. A eukaryotic cell possesses the characteristic of compartmentalization of organelles, wherein the organelles are bound by membranes. This type of cell has a true membrane-bound nucleus and has other membranous organelles.
4 0
3 years ago
PLEASE HELP!!!!!!!
Dafna1 [17]

Answer: The answer is A, organs produce hormones that change a child's body into an adult.

Explanation: The endocrine system is responsible for regulating a range of bodily functions through the release of hormones.

Hormones are secreted by the glands of the endocrine system, traveling through the bloodstream to various organs and tissues in the body. The hormones then tell these organs and tissues what to do or how to function.

7 0
2 years ago
To break down a peptide bond, or disassemble a fatty acid. _________ must occur
sveta [45]
Hydrolysis is when a polymer (such as a peptide bond or fatty acid) is split into smaller segments by adding water. 
3 0
3 years ago
How do mutations occur in the genetic code
Nastasia [14]

Answer:

Mutations in genetic code occurs when DNA is being duplicated.Any changes in the base pairs leads to mutations by trasition or transversion. Change in amino acid leads to change in sequence and thus, mutation. This si carried on to new generation, if it takes place in germ cells.

5 0
3 years ago
2. Copy/paste and align the first 5 bases of all introns. Which bases are conserved near intron start ("donor site")?
Delicious77 [7]

Answer:

This question is incomplete

Explanation:

Introns are non-coding regions of a DNA that removed by RNA splicing prior to translation. Alignment is usually done between sequences to see and understand the identity and similarity between two or more sequences.

A region/base is said to be conserved if there is  NO change in any base in that particular region. A multiple sequence alignment (MSA) can be used to align the donor sites of all the introns to see the bases that have not "changed" (and still remained in there exact position) hence conserved across all the donor sites.

NOTE: The donor site of an intron is the 5' end, thus the first five bases in the 5' end are to be used here

5 0
3 years ago
Other questions:
  • The distance traveled in a certain amount of time is called
    9·1 answer
  • A specific type of physical change is a _________ change.
    5·1 answer
  • An animal has a diploid chromosome number of 60. Suppose that the first meiotic division of a germ cell is normal, but a single
    15·1 answer
  • When scientists classify living things, they do not include viruses. This is because viruses A) cause disease. B) do not contain
    8·2 answers
  • This food chain is one part of of a _____ within an ecosystem.
    14·1 answer
  • What are the negative effects of endangered species?
    14·2 answers
  • The environmental benefits of composting include all of following EXCEPT____________.
    6·1 answer
  • In a chromosome pair connected by a centromere what is each individual chromosome called
    9·1 answer
  • Following fertilization and two rounds of cell cleavage, each of the four cells of a frog embryo has a centriole that is prepari
    8·1 answer
  • A leading fruit juice manufacturing company wants to launch a new flavor in the market. For this, the company wants Information
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!