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methylation

[ meth-uh-ley-shuhn ]

noun

, Chemistry.
  1. the process of replacing a hydrogen atom with a methyl group.


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Word History and Origins

Origin of methylation1

First recorded in 1875–80; methylate + -ion
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Example Sentences

Even more impressive, the clock used a simple statistical model, which looked at a certain type of epigenetic modification—DNA methylation—at just two target sites on DNA.

Examining DNA methylation patterns in multiple people’s DNA and comparing them with the new reference revealed that the dips occur at different spots in each person’s centromeres, though the consequences of that aren’t known.

Traumatic experiences have the power to change our gene function through multiple mechanisms such as methylation marks, which attach to our DNA and act as on-off switches.

From Time

These methylation marks can be triggered by cues in the external environment, such as symptoms of starvation, stress or violence.

From Time

Studies have demonstrated that trauma, and perhaps even DNA methylation, may be reversed if we can identify the cause and treat it.

From Time

Higher levels of methylation were found in those who had committed suicide.

It has been explained that by the methylation of rosaniline Hofmann obtained violet colouring-matters.

The methylation of aniline can obviously be carried out by the foregoing process only when beet-sugar residues are available.

It is apparently a tropidine monocarboxylic acid, for on exhaustive methylation it yields cycloheptatriene-135-carboxylic acid-7.

He made the important discovery that some animals possess the power of methylation as well as of demethylation.

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methylated spiritsmethylbenzene