Sentences with phrase «of particular genes known»

Not exact matches

To quote Ayala and Kiger's textbook, Modern Genetics: «There is no way of knowing whether a given gene will mutate in a particular cell or in a particular generation,» because the mutations «are unoriented with respect to adaptation.»

If Chad and others argue that naturalistic evolution must be dismissed because we don't know exactly what happened with gene mutation and transmission frequencies during particular periods of rapid change, then how can we accept a replacement argument in which we don't even know what happens at all?

They started with pairs of fat yellow mice known to scientists as agouti mice, so called because they carry a particular gene — the agouti gene — that in addition to making the rodents ravenous and yellow renders them prone to cancer and diabetes.

Carrying a particular version of the gene for apolipoprotein E (APOE) is the major known genetic risk factor for the sporadic, late - onset form of Alzheimer's disease, but exactly how that variant confers increased risk has been controversial among researchers.

A particular form of the gene known as TPCN2, for example, bestows brown hair in modern humans; any other form means hair that's another color.

They sent soil samples for DNA testing, looking for matches with particular genes known to be found in microbes and fungi; they tried to stimulate microbial growth on a wide variety of substances and then count the cells produced; and they used highly sensitive radiorespiration activity assays, which involve feeding the soil microorganisms a food source which has been labelled with radioactive carbon, which can then be used to detect if the microorganisms are active.

In particular, they examined different forms of the promoter region of the vasopressin V1a receptor gene (AVPRIA), known as DupA and DupB.

A mutation in one of the genes that controls this pathway, PTEN (also known as phosphatase and tensin homolog), can cause a particular form of autism called macrocephaly / autism syndrome.

Specifically, the findings explain how a particular gene — called fkbp5 — is involved in a phenomenon known as «fear extinction,» through which animals and humans disassociate with fearful memories of a traumatic experience, such as war, assault or a natural disaster.

This technique pointed out particular versions of 22 genes, half of which were not previously known to have a role in intellectual ability.

The deck was stacked in favor of success in the choice of this particular disease since it was known that the therapeutic gene just had to be expressed in a modest number of blood cells to achieve therapeutic benefit.

Although both cell types come from cells known as myeloid progenitors, each type relies on its own set of functionally active genes to carry out its particular role in fighting infection.

«We were surprised to see that expression of the gene TSLP — which encodes a cytokine long known to be involved in epithelial - induced inflammation — was exclusive to a particular subset of tuft cells,» Haber noted.

Ataluren and amlexanox, work by enabling cells to bypass a particular type of DNA gene change known as a nonsense mutation.

Of particular interest is a gene known as SPARCL1, which can accurately predict whether a seemingly localized tumor will return and spread within a few years after surgery.

The modern human ancestor who contributed genes to this particular Neanderthal individual — called the «Altai Neanderthal,» and known from a tiny toe bone fragment — must have migrated out of Africa long before the migration that led Africans into Europe and Asia 60,000 years ago, the scientists say.

This is in contrast to known genes where 21 % have a particular pattern, possibly because a number of ESTs included in the microarrays are cloning artifacts.

«In this study, researchers evaluated the effect of dietary fats on one particular chromatin gene known to lengthen roundworm lifespan.

One particular gene known as Taqpep was identified as controlling various aspects of mammalian coat patterns.