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LuckyWell [14K]
3 years ago
6

What happens during the first step in DNA replication?

Biology
2 answers:
Nina [5.8K]3 years ago
7 0

The first step in DNA replication is the separation of the two DNA strands that make up the helix that is to be copied.

WITCHER [35]3 years ago
3 0

It starts when a protein starts the unwinding of the DNA helix. Next comes the separation of the DNA strands right before the transfer of genetic data to the newly assembled DNA strands starts. A protein known as helicase is what breaks down the hydrogen bonds between strands of DNA during replication.

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What would happen if another substance competed for the enzyme active site?
Lelu [443]
That's what is called competitive enzymatic regulation. If there are more of that substance than the enzyme substrate, then most of the enzyme, if not all depending on the substance's concentration, will be inhibited on its action. If there are more substrate then the competitive substance, the expected reaction for that enzyme will happen at an expected rate. If the ratio substrate:substance is 1:1 then the reaction enzyme-substrate is very slowed down.
6 0
2 years ago
What fronts move from the south to the north
dezoksy [38]

A warm fronts move from the south to the north

<u>Explanation</u>:

A warm front are formed when a warm mass of air is pushed into a cold air mass. Since  the warm air mass at surface rises above the cold mass of air they often causes stormy weathers. Also due the difficulty of warm air in pushing the cold dense air across the surface of the earth make the warm fronts to move slower when compared to cold fronts. Unstable air produces thunderstorms around the warm fronts. solid red line with red, filled-in semicircles is used to represent a warm front on the map.

5 0
2 years ago
Which strand of mRNA would be made during transcription using the DNA strand shown below?
GrogVix [38]

Answer:

b  GAC TAT

Explanation:

ATGC = TACG

8 0
3 years ago
Nobel, who has terminal cancer, has been in a depressed state for several weeks. the most effectve way to help him move out of t
Stells [14]

The right answer is have a frank, open discussion with him about his feelings.

The combination of a depressive disorder with a serious physical illness such as cancer can make the identification and treatment of depression more difficult. Indeed, the symptoms of depression may be underestimated and attributed to the other disease.

4 0
3 years ago
Suppose it were possible to conduct sophisticated microscopic and chemical analyses of microfossils found in 3.5-billion-year-ol
soldier1979 [14.2K]

Answer:

The correct answer is option 3. a nucleus.

Explanation:

The first genetic material present in the early organisms were RNA which was present in the microscopic organisms back then 3.5 billion years ago which means it is normal to have RNA in such microfossils chemical analysis.

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Thus, option III is the correct answer.

7 0
3 years ago
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