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elena-s [515]
3 years ago
5

How do I answer these questions

Biology
2 answers:
AlexFokin [52]3 years ago
6 0
24 the state of matter of a substance at given temperatures
25 0 celsuis
26 the metamorphosis of the substance changing its state of matter
inna [77]3 years ago
3 0

Answer:hi

Explanation:hi

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The answer for 21 I think is false
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Sort the items based on whether they have gravitational potential energy or chemical potential energy. liquid petroleum gasoline
poizon [28]

Explanation:

Gravitational potential energy is the energy of body due to its position in the gravitational field.

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Items sorted on the bases of gravitational potential energy and chemical potential energy are as follows.

Gravitational potential energy:

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4 years ago
Which advance resulted from the development of a culture technique for muscle cells?
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The correct answer would be 

C.) <span>Polio Vaccination.</span>
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4 years ago
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One form of chromatin modification is acetylation, which is known to occur on positively charged histone tail amino acids, thus
Naya [18.7K]

Answer:

A. The tails do not interact with the DNA

Explanation:

The acetylation refers to the transfer of the acetyl group from Acetyl-CoA to the N-terminal of the histone protein.

Lysine residues (positively charged amino acid) are present at the end of the N-terminal of the histone protein which is neutralized by the acetyl group.

This loses the compaction between the positively charged histone and the negatively charged DNA and the DNA becomes more relaxed. This relaxed state allows the transcription factors to easily bind the DNA and therefore the DNA becomes transcriptionally active.

Thus, Option-A is correct

4 0
3 years ago
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