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tresset_1 [31]
3 years ago
14

Which term describes a single female arcticWhich of the following is a way humans have impacted the rainforests, but not the tun

dra?
a.
oil drilling
b.
mining
c.
overgrazing
d.
logging fox?
Biology
1 answer:
LiRa [457]3 years ago
5 0

Answer:

c.

overgrazing

Explanation:

<h2>hope it helps </h2>

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Rufina [12.5K]

Answer: Eating excessive quantities of such molecules could deregulate this process, increasing methylation and repressing the expression of genes that should normally be expressed.

Explanation:

DNA methylation is one of the epigenetic mechanisms involved in the regulation of gene expression, because it is a process by which methyl groups are added to DNA.

Methylation then modifies the function of DNA when it is found in the promoter gene, it is essential for normal development and is associated with a number of key processes, including genomic imprinting, inactivation of the X chromosome, repression of repeating elements, aging, and carcinogenesis. Usually, <u>it acts to suppress gene transcription.</u>

For example, folic acid is essential for the rapid cell division that occurs during early fetal development and it also plays an important role in methylation and thus in gene regulation. <u>The metabolism of these vitamins is aimed at achieving adequate levels of  DNA methylation, necessary for the cellular processes</u>. Eating excessive quantities of such molecules could deregulate this process, <u>increasing methylation and repressing the expression of genes that should normally be expressed</u>.

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When a deep water island of marine debris is situated directly in the migratory path of a pod of humpback whales, then the carrying capacity for the region would be negotiated and the populations of whale will suffer.  


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What is the effect of a mutation?
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