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Llana [10]
3 years ago
6

Transcriptionally inactive regions of the genome are typically heavily methylated. True or false?

Biology
1 answer:
polet [3.4K]3 years ago
6 0

The answer is true.

DNA methylation is a process by which methyl groups are added to the DNA, more precisely to its nucleotides adenine or cytosine (they are methylated) via enzymes called DNA methyltransferases. This process as a result can change the activity of a DNA. For example, if DNA of gene promoter is methylated gene transcription is repressed. The opposite process is DNA demethylation.

So, DNA methylation is an epigenetic mechanism meaning that gene activity can be changed and inherited that way, but the sequence  of DNA remains the same.

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When people speak about convection, they are usually referring to the uneven heating that occurs on the surface of the earth.

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It generates updrafts, which in turn may lead to thunderstorms and other types of severe weather.

The Earth has moved slightly on its axis.

Because the sun's rays are directed directly at the equator, the temperature there is higher than in other parts of the planet.

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Because of this, the temperature of the earth is uneven, which in turn shapes the wind and the flow of the sea and makes it possible for life to exist.

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hemotrophs are organisms that obtain energy by the oxidation of electron donors in their environment. Chemoautotrophs use inorganic energy sources to synthesize organic compounds from carbon dioxide. Chemoheterotrophs are unable to utilize carbon dioxide to form their own organic compounds.

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