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pychu [463]
3 years ago
6

To separate the parts of a cell by differences in density, a biologist would probably use?

Biology
1 answer:
laiz [17]3 years ago
5 0
CRSPR? That’s how you separated and code DNA and alter different genetics. That’s my guess...
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2. Chimpanzees and gorillas more closely resemble each other anatomically than either resembles humans. For example, the hands o
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Answer:

Human evolution in the hominid family occurred faster than between Chimpanzees and gorillas. Neutral mutations may result in sequence divergence between organisms that are structurally similar (in this case, chimpanzees and gorillas)

Explanation:

Human and chimpanzee share higher sequence identity than predicted in the hominid family since observed mutations are necessarily associated with functional divergence

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Which process keeps the Earth from having extremely cold temperatures at night? *
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Answer:all of them

Explanation:

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_________ are chemicals nonhumans secrete into the environment that produce a reaction in other members of the same species, per
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Most ____ are unicellular organisms such as bacteria
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The answer is Prokaryotes.
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You determine that you have only three copies left of an important DNA fragment, so you decide to amplify it. Using flanking pri
kicyunya [14]

Hello. This question is incomplete. The full question is:

"You determine that you have only 3 copies left of an important DNA fragment, so you decide to amplify it. Using flanking primers, how many PCR cycles would you have to run to generate over one billion (10^9) copies of the fragment? "

Answer:

Approximately 29 cycles of PCR would be required.

Explanation:

As you may already know, PCR is a technique used in molecular biology that allows part of a DNA molecule to be recycled into millions of copies.

PCR allows this replication to be done through cycles. Each PCR cycle lasts about 2 minutes and allows the DNA molecule to undergo the separation of the strands, the binding of the primers and the synthesis of new DNA strands through DNA polymerase. This cycle is usually repeated 32 times, but this number may change depending on the number of copies the researcher thinks is necessary.

In this case, if a researcher wants 10 ^ 9 copies of DNA, he must do the following calculation to find the number of PCR cycles needed:

32 ^ x = 10 ^ 9

x = 28.3 = approximately 29 cycles.

4 0
3 years ago
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