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Nimfa-mama [501]
2 years ago
13

What does the DNA serve as?

Biology
2 answers:
guapka [62]2 years ago
5 0
Building blocks for are body
garik1379 [7]2 years ago
5 0

Answer:

DNA carries the genetic instructions for the reproduction of all known organisms.

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8 0
2 years ago
Describe how the presence of lead in body cells could interfere with the
ahrayia [7]

Answer:

Descreva como a presença de chumbo nas células do corpo pode interferir com o capacidade de funcionamento das enzimas. *

Explanation:

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3 0
2 years ago
A scientist wants to begin making a DNA fingerprint, but she has only a very small DNA sample. What should her next step be
azamat

For obtaining an adequate amount of DNA samples for DNA fingerprinting, polymerase chain reaction (PCR) can be used.

Polymerase chain reaction (PCR) is a technique that is used to amplify the DNA sample. The steps included in PCR are:-

1. Denaturation of the double-stranded DNA (at around 95°C)

2. Annealing of the primers to each of the single-stranded DNA templates ( at around 65°C)

3. Extension or elongation of the primers by considering every single-stranded DNA as a template. This elongation is carried out by <em>Taq </em>polymerase (at around 72°C).

With each cycle of PCR, the DNA sample is increased by 2ⁿ. Here, 'n' represents the number of PCR cycles.

#SPJ4

Learn more about polymerase chain reaction here: -

brainly.com/question/11442887

3 0
1 year ago
In an experiment, the solubilities of carbon dioxide and oxygen gases are studied over a temperature range from 0°C to 60°C. Ide
nekit [7.7K]

Answer:

Independent Variables: Temperature in C

Dependent Variables: Solubility of O2 in g/100 g water, Solubility of CO2 in g/100 g water

Explanation:

I’ve done this before and I got it right.

3 0
3 years ago
The ______ system senses changes in the internal and external environment so that the body can adapt to the changes.
Murljashka [212]
Maybe the nervous system?

7 0
3 years ago
Read 2 more answers
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