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2 years ago

What happens to the DNA molecule at the beginning of transcription?

Biology

2 answers:

hichkok12 [17]2 years ago

6 0

Are there multiple choice options for this question?

Gre4nikov [31]2 years ago

5 0

When a gene is to be expressed, the base sequence of DNA is copied or transcribed into mRNA (messenger RNA). This process takes place in the nucleus and occurs in a series of stages.

1.RNA polymerase moves along the DNA unwinding the strand.

2.Hydrogen bonds between base pairs break which allows the unzipping of the double helix.

Hope that answer fits your question.

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a german measles rubella epidemic during the years 1963 to 1965 resulted in approximately 30,000 babies being born with birth de

Juli2301 [7.4K]

Answer:

In babies born with congenital defects during the German measles rubella epidemic the specific cause of these birth defects was most likely the development of rubella virus infections in embryos.

Explanation:

Options for this question are:

1. The development of rubella virus infections in embryos. 

2. The failure of zygotes infected with rubella to develop

3. Mutations in the nerve cells of pregnant females at the time of the rubella epidemic .

4. An increase in the amount of time needed for healthy embryonic development.

Rubella is a viral infection caused by a virus of the genus Rubivirus, considered highly teratogenic during the phases of pregnancy where the embryo and the fetus are developing, that is, before 20 weeks of gestation.

The virus is transferred to the embryo or fetus by the mother's blood, acquiring the disease, which can cause abortions or visible malformations at birth, which is called Congenital Rubella Syndrome (CRB).

CRB is responsible for producing cardiovascular, renal, neurological malformations, loss of vision or hearing, problems that German children born during the epidemic probably had.

Learn more:

Congenytal rubella brainly.com/question/2107536

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3 years ago

An amoeba is a unicellular organism, which doesn’t have a stomach for digestion of food. How does food storage and digestion tak

worty [1.4K]

Food storage and digestion take place inside a food vacuole in the cytoplasm of amoeba. Once digested, it reaches each cell organelle.

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3 years ago

Which of the following is associated with schizophrenia?

babymother [125]

Less gray matter is associated with schizophrenia and is denoted as option B.

<h3>What is Grey matter?</h3>

These are usually darker tissues which are found in the brain and spinal cord. They contain a rich network of neurons present.

This is therefore the reason why schizophrenia is associated with mental health.

Read more about Grey matter here brainly.com/question/13782390

#SPJ1

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1 year ago

What is the correct way to write an individual's blood pressure?

dmitriy555 [2]

Hello!

The blood pressure is supposed to be stable at all times to prevent strokes or other deadly effects. You measure the blood pressure with a sphygmomanometer around the arm and listen to the pulse. When completed, you would write the blood pressure like so: 120 over 80. If you write it any other way, it would be incorrect, so you measure the first sound first, then when the sound stopped and remember to write "over."

I hope this helped you!

I am, yours most sincerely,
SuperHelperThingy

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2 years ago

Which of the following lists these terms in the correct order from smallest to largest?

sergey [27]

The answer is A because the universe is all of the galaxy’s,solar systems,and planets put into one

5 0

3 years ago