For example, investigators found that for the mouse immune system, metabolic processes and stress response,
the activity of some genes varied between mice and humans, which echoes earlier research.
Which parent a chromosome comes from is important because
the activity of some genes varies depending on whether the genes are on a chromosome inherited from the mother or from the father.
Not exact matches
Most
genes have hundreds
of such sequences, with
varying activity and uniqueness in the genome.
They found that more than half
of the 7,000
genes expressed in the liver
vary in
activity from one layer to another, a number that is about ten times greater than previous estimates.
Perera turned the full beam
of her attention on Tycko as he explained how the cord - blood samples showed that the
gene's
activity varied and that it
varied in ways that suggested the differences were not random but environmentally influenced.
The researchers discovered that DNA methylation — a fundamental, life - long process in which a methyl group is added or removed from the cytosine molecule in DNA to promote or suppress
gene activity and expression — does in fact
vary between FLS from the knees and hips
of RA patients.
Hoping to develop a treatment that works more broadly across diseases, a Penn Vet team used canine disease models to closely examine how retinal
gene activity varied during the progression
of three different forms
of inherited vision disease.
The finding suggests that these
varied Wnt
genes regulate Smed - beta - catenin - 1
activity to provide the positional information by which the organism specifies the location
of its head and tail during regeneration.