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olga nikolaevna [1]
3 years ago
14

What is the answer for 21

Biology
1 answer:
Georgia [21]3 years ago
6 0

Answer:

pretty sure d

Explanation:

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What happens to RNA polymerase II after it has completed transcription of a gene? a. It begins transcribing the next gene on the
Over [174]

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.

7 0
3 years ago
PLEASE HELP ASAP<br><br> how does the ribosome read the mRNA?
ValentinkaMS [17]

Answer:

A ribosome is made up of two basic pieces: a large and a small subunit. During translation, the two subunits come together around a mRNA molecule, forming a complete ribosome. The ribosome moves forward on the mRNA, codon by codon, as it is read and translated into a polypeptide (protein chain).

Explanation:

8 0
2 years ago
Enzymes are sensitive to pH and temperature. If an enzyme’s environment is too hot, the enzyme cannot
musickatia [10]

Answer: I thought I have answered this question before. Yes emzymes are sensitive to PH and temperature.

Explanation:

if the temperature is above 60 - 70 degree celcius, it looses it's ability to catalyse as such emzymes are kept within the normal body temperature to function effectively. Emzymes are also sensitive to PH changing the pH of its surroundings will also change the shape of the active site of an enzyme and also changing the pH will affect the charges on the amino acid molecules.

8 0
3 years ago
Read 2 more answers
A mutation occurs in a brain cell. This mutation will be passed on to
kirza4 [7]
Cells produced when the mutated cell divides.
7 0
3 years ago
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4) A group of registered dietitians is planning to conduct a scientific study to investigate the effects of eating honey on scho
Flura [38]

Answer:

ask a question and predict what the outcome will be

Explanation:

when using the scientific method you always have to ask a question and make a hypothesis

4 0
3 years ago
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