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Anastasy [175]
3 years ago
6

The heat transferred to the ice increases the thermal energy of the molecules of water. Why does this cause a change in state?

Biology
1 answer:
Irina18 [472]3 years ago
7 0
Molecules are moving faster and are spaced further apart allowing for a change of state
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Answer:A

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Genetic imprinting modulates gene expression by chemical modification of DNA and/or modification of chromatin structure. Often, genetic imprinting causes a gene to be expressed only on the chromosome inherited from one of the parents. One example of imprinting is DNA methylation, which is a process by which methyl groups are added to DNA. <u>Methylation modifies DNA function when found in the promoter gene, repressing gene transcription. This means that a methylated gene will not be expressed</u>, that is, it will not produce a protein encoded by that gene. So, if a region of DNA is imprinted in the sperm cell, the paternal chromosome inherited from this sperm will be methylated in the genes of the offspring. And the offspring will only express the maternal copy inherited, which will not be methylated.

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