methyl group

American  

noun

Chemistry.

1. the univalent group CH 3 −, derived from methane.

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Example Sentences

The second step is methylation, which attaches a methyl group to the sugar.

From Science Daily

For years, researchers have questioned whether methyl groups, tiny chemical clusters that collect on DNA, merely show up where genes are already turned off or whether they are the direct cause of gene suppression.

From Science Daily

DNA m is a natural process where small chemical groups, called methyl groups, are added to certain parts of our DNA.

From Science Daily

This is why RNA-methylation needs to be tightly controlled, taken care of by a set of proteins: "writers" deposit, "readers" recognize and "erasers" remove the methyl group.

From Science Daily

This modification is enabled by the transfer of methyl groups to nucleobases at certain positions in the DNA.

From Science Daily