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
What are contagious diseases
kari74 [83]
NOT EXACT DEFINITION: Diseases that can be passed from one living organism to the other. Two examples are flu and several STIs (such as herpes). Sorry I couldn’t think of any more :)
4 0
2 years ago
Fil in the blanks:1. A fat molecule is composed of two types of smaller molecules, including only one molecule of _________. 2.
Sedbober [7]

Answer:

1. Glycerol

2. Fatty acids

3. Monoglycerides

4. Triglycerides

5. Hydrocarbon

6. Hydrophobic

Explanation:

1. Glycerol

Fat consist of a molecule called glycerol that is attached to one, two, or three fatty acids. Glycerol is the basis of all fats and consists of a three-carbon chain that is attached to the fatty acids.

2. Fatty acids

Fats is made up of three fatty acids and a glycerol, it can also be called triacylglycerols or triglycerides.

3. Monoglyceride

It is a glycerol molecule with a singular fatty acid. It is formed through the combination of OH of glycerol to the OH of the fatty acid.

4. Triglycerides

It has three fatty acid molecules. It is a tri-esters made up of a glycerol attached to three fatty acid molecules.

5. Hydrocarbon

Fatty acids is made up of long, unbranched hydrocarbons with a carboxylic acid group found at one end.

6. Hydrophobic

The hydrophobic nature of fat arises from the carbon-hydrogen bonds that are nonpolar.

3 0
3 years ago
Read 2 more answers
Which of the following organisms arose during the Mesozoic Era? a. mammals c. insects b. birds d. salamanders
Harlamova29_29 [7]
<h2>Answer:</h2>

The Mesozoic era is featured by the arousal of <u>b. birds</u>.

<h2>Explanation:</h2>

The Mesozoic Time is the age of the dinosaurs and kept going nearly 180 million a long time from around 250 to 65 million a long time back. It includes periods called the Triassic, Cretaceous, and Jurassic periods. A mass-extinction stamped the starting and conclusion of the Mesozoic Period. The occasion that caused the move from the Paleozoic time to the Mesozoic period was the most prominent termination this soil has seen.  

There's noteworthy prove that birds developed inside theropod dinosaurs, particularly, that winged creatures are individuals of Maniraptora, a category which belongs to dinosaurs period.

8 0
3 years ago
A flu virus can remain infectious on surfaces such as desk and doorknobs for long periods of time how does the ability of the fl
Sunny_sXe [5.5K]

Answer:

because the germs spread and when other people touch it and are carriers and they will probably get sick too

Explanation:

3 0
2 years ago
Help Me on this Science ? Its Really Confusing and i need it to get a passing grade
Crank
I'll help you with your science
7 0
2 years ago
Other questions:
  • What are motor voter laws?
    7·1 answer
  • plants are living organisms. what are some of the characteristics of life that plants must fulfill? select all that apply.
    8·2 answers
  • Describe your organism and “create” an important enzyme for its survival. Include and discuss the specific job this enzyme has i
    8·1 answer
  • What are viruses considered to be non-living?
    14·2 answers
  • Refer to the illustration of the leaf cross-section. The vein is made up of _________.
    6·2 answers
  • Explain two ways in Which immunity is produced
    12·1 answer
  • Unicellular and simple multicellular organisms isolate and eliminate waste materials by:
    11·1 answer
  • TIME REMAINING
    7·2 answers
  • Which of the following is NOT true regarding the endocrine system?
    14·1 answer
  • Which is NOT included in the appendicular skeleton?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!