Sentences with phrase «gene variation because»

It's important to test for both homocysteine levels and the MTHFR gene variation because while you may not have the gene that affects the methylation pathways, you may still have elevated homocysteine levels, which tells us the level of inflammation in our bodies.

Not exact matches

Because of these variations, genes may be expressed differently from one individual to another.

Variation in pigmentation among human populations may reflect local adaptation to regional light environments, because dark skin is more photoprotective, whereas pale skin aids the production of vitamin D. Although genes associated with skin pigmentation have been identified in European populations, little is known about the genetic basis of skin pigmentation in Africans.

The scientists estimate that these gene variations were able to persist in Neanderthals because Neanderthals had a much smaller population size than humans.

So geneticists have been focusing on the dog as a possible model for gene searches because this lack of sequence variation may help them circumvent a frequent problem with studies in humans.

Geneticists classify traits like tooth size and shape as «complex» because they are affected by DNA variations within many genes.

Because the genes help produce nicotine's buzz, a team led by Robert Weiss, a geneticist at the University of Utah in Salt Lake City, wanted to determine if variations in their sequences influence whether people develop a stronger addiction to cigarettes.

Although variations in the NPAS1 and NPAS3 genes have been linked to brain disorders including autism, they aren't obvious drug targets because their function is most important in early life.

Human hair color is a trait usually governed by many genes, but study author Sean Myles, a geneticist at Nova Scotia Agricultural College in Truro, Canada, suspected things might be simpler in the Solomon Islands because he saw almost no variation in shades of blond hair.

Because of this level of variation, natural selection acts on the level of individual genes, not the whole genome.

Kwiatkowski and his team suspect that the variation might be subject to something called balancing selection — just like the sickle cell variation — where genes are selected because of their ability to protect against malaria, but are kept from becoming too common because of their potential downsides.

Because many traits and conditions are the result of combinations of genes and environment, we see a wide range of variation for most traits in the population.

Many scientists looked to insects for natural homeotic gene variation, Patel explained, because insects have such diverse body plans.

Because of its rapid rise, the gene becomes fixed in the genome with less variation than a gene that spread more slowly and was subject to the shuffling effects of recombination.

This is because atopic dermatitis, better known as eczema, is often a result of gene variation.