Changes in methyl groups probably account for some of those differences.

The main use of this command is for methyl groups.

Typically, one methyl group is transferred more quickly than the second.

It is an analog of 1,4-naphthoquinone with a methyl group in the 2-position.

Many products are produced with varying numbers of methyl groups.

It is used in organic synthesis as a source of methyl groups.

Methyl groups are entirely derived from the foods people eat.

One of these lone pairs links to the methyl group.

Methyl groups can control whether genes make proteins or remain silent.

When that was done, no extra methyl groups appeared.

The most common is Tm, which has a methyl group on the nitrogen.

The most common isomer is 3-methylcholanthrene, although the methyl group can occur in other places.

Known ones have 3 methyl groups (all at quaternary centres).

The third defines a methyl group with riding hydrogen positions.

The more intense the exercise, she says, the more the methyl groups are on the move.

If methyl groups have been taken away (demethylated), genes are more likely to turn on.

The oxidation of a methyl group occurs widely in nature and industry.

It is an analog of camphor, but without the three methyl groups.

The most common epigenetic mark is a methyl group.

The reactivity of a methyl group depends on what it is attached to.

Therefore, a methyl group is not a useful torsional-effect probe.

Quinaldine, the isomer with the methyl group in position 2.

But what if flooding the fetus with methyl groups turns off healthy genes?

The results suggest independent incorporation of selenium and the methyl groups.

Since the methyl group is present twice, its contributions have to be added twice.