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Alexus [3.1K]
2 years ago
7

Gravity is a _____________ between objects and depends on an objects size and their distance apart

Biology
1 answer:
zvonat [6]2 years ago
8 0

Answer:

force,pull

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
Which of the following is a cause of a DNA mutation?
Reika [66]
DNA Mutation is caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes. Thus, the correct answer is option D.

1.DNA Mutations are caused by environmental factors known as mutagens.

2.Types of DNA mutagens include radiation, chemicals, and infectious agents.

3.DNA Mutations may be spontaneous in nature.
7 0
2 years ago
Mendel used
padilas [110]
Experiments in general are more reliable when a greater sample size is used. When using a small sample size, a mistake or fluke can greatly effect the outcome of the experiment. With a large sample size, there is more data to understand averages and deviations to the average data. The average will likely be more accurate with more data, which would make his sample size more reliable.
3 0
2 years ago
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What contributes to the movement of air masses?
Readme [11.4K]

B). natural wind patterns, I took the Cumulative Exam.

 

3 0
3 years ago
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For an experiment studying the rate of photosynthesis in water plants, a water plant was placed in a beaker of water and set 10
Leto [7]

Answer:

The further away means it gets a weaker source if light and less reaches it.

Explanation:

Since the plant produces oxygen in photosynthesis, you can use this to measure the rate of photosynthesis. Which is affected by light and it's availability.

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