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andrey2020 [161]
3 years ago
15

Which of the following correctly describes how molecules move during diffusion? (select all that apply)

Biology
1 answer:
BigorU [14]3 years ago
5 0
<span>i think it is a.Molecules move against their concentration gradient.  hope it helps

</span>
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Answer:

Some forms of chromatin modification can be passed on to future generation of cells

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Explanation:

chromatin modifications that can be passed on includes epigenetic modifications that are heritable changes made to the chromatin structure that does not involve the DNA sequences. Some epigenetic modifications include DNA methylation and Histone modifications. examples of histone modification include acetylation, methylation, phosphorylation, ubiquintylation etc. All these function either in allowing the DNA become more accessible to transcritional factors or vice versa. for exmple, histone tail acetylation encourages unwounding of nucleosomes allowing transcriptional factors to have access to the DNa while histone tails methylation further tightens the nucleosomes promoting condensation of the chromatin.

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