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Alja [10]
3 years ago
12

What does fitness mean in terms of evolution?

Biology
1 answer:
Serjik [45]3 years ago
4 0

Answer:

It means the organisms ability to survive and reproduce in an specific environment.

Explanation:

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Korvikt [17]

This is not a valid question. Please ask a question to receive an answer.


6 0
3 years ago
Which step in the PCR process will be affected?
Temka [501]

The denaturation step in the polymerase chain reaction will be affected. As a result the DNA strands will not unwind and the DNA will not become single stranded.

<u>Explanation:</u><u> </u>

Polymerase chain reaction is used to synthesize multiple copies of DNA. The technique in molecular biology uses thermal cycling which involves steps of heating and cooling. There are three important steps in PCR.

Nucleic acid denaturation is the first step. In this step the DNA is heated to about 90°c and this causes the denaturation of the DNA. Two strands of DNA get separated. The second step is annealing in which the strands are cooled to 55°c.

During annealing the primers stick to the complementary sites on the DNA to facilitate its replication. The third step is extension in which the temperature of the mixture is raised to 72°c. The tag polymerase will start working on the DNA strands and replicate them.

If the denaturation step is not performed the speration of double stranded DNA into single strands won’t take place.

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3 years ago
_is used to help substances enter or exit the cell membrane
ValentinkaMS [17]

Answer:idk

Explanation:idc

3 0
2 years ago
What is the answer for this question
Llana [10]

Answer:

it's the first one

Explanation:

4 0
2 years ago
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Which factors result in scarcity when both are present?
kupik [55]

Answer:

Scarcity factor implies that shortages of goods & services. Price of commodities depends upon scarcity factors.

Explanation:

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