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Mnenie [13.5K]
3 years ago
15

Why can you see the cell membrane in cheek cells but not in onion or elodea cells

Biology
1 answer:
snow_tiger [21]3 years ago
7 0

Answer:

No you can not see them

Explanation:

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Some molecules found in foods are known to be capable of driving DNA methylation or DNA demethylation. For example, folic acid (
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>.

3 0
3 years ago
1. How do living things get energy from the sun?
denis23 [38]

Living things get energy/food from the sun through a process called Photosynthesis

it's the process by which living organisms manufacture food in the present of sunlight, oxygen and some other vital nutrients.that is Carbon dioxide etc

3 0
3 years ago
Mushrooms are usually considered part of the microbial world because their fungal hyphae are microscopic. Some mushrooms have a
Effectus [21]

Answer:

Basidiocarp

Explanation:

This is a multicellular structure found in mushroom that are visible to the naked eye and are spore producing. They are the structures of which spore producing basidia are formed. They called called false ruffles. The basidiocarps serve as the structure on which the hymenium is produced. They are the fruiting bodies of mushroom.

3 0
3 years ago
What are the three elements of an editorial?
Vika [28.1K]

Answer:  the introduction, the body, and the conclusion

Explanation:

An editorial piece is meant to show the opinion of the newspaper on a certain issue. It is usually written by the senior editor or the publisher and is the first article on the written piece.

Editorials follow a common writing structure that begins with an introduction where the issue is introduced. Discussions are then made in the body and the conclusion will then round up the piece.

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3 years ago
A combination is a substance formed when two or more different elements combine.<br> True or false
Sergeeva-Olga [200]

Answer:

False

Explanation:

Two or more elements combine to forma COMPOUND.

4 0
3 years ago
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