Sentences with phrase «comparing single genes»

Although elevated dN / dS is a common metric for evidence of selection when comparing single genes, dN / dS values are much lower for signatures of selection across the entire mitogenome [33].

Not exact matches

What they did not express compared to their nonhealing counterparts was a single gene: p21.

When the researchers compared the mRNA to a library of DNA sequences taken from the dendrites of neurons by James Eberwine of the University of Pennsylvania Medical Center, they found that it came from a single gene on chromosome X — the human version of which, when mutated, leads to fragile - X syndrome.

Tadashi Matsunaga at the Tokyo University of Agriculture and Technology in Japan and his colleagues singled out the genes by comparing well - known magnetic bacteria to a distantly related magnetic species.

Single - cell differential gene expression analysis revealed a spectrum of known transcripts, including several linked to cytotoxic and costimulatory function that are expressed at higher levels in the TEMRA (effector memory T cells expressing CD45RA) subset, which is highly enriched for CD4 - CTLs, compared with CD4 + T cells in the central memory (TCM) and effector memory (TEM) subsets.

Comparing their gene sequences established that they likely diverged from a single common ancestor between 1902 and 1921, suggesting HIV has been in human populations for at least that long.

For each gene, the researchers compared the number of single letter mutations that alter the encoded protein versus silent mutations that have no effect.

Studies comparing identical and fraternal twins suggest there is some heritable component to homosexuality, but no one believes that a single gene or genes can make a person gay.

«The chance of the gene being lost over and over again in the other lineages seems vanishingly small compared with a single transfer from a metazoan to a bacteria.»

The team also compared the 7442 genes found as single copies in both the cobra and the python with the same genes in all other land vertebrates sequenced so far.

Carrying two copies of a single - letter change in the DNA of chromosome 16 led to a 35 per cent increase in activity of the gene GSPT1 ¬ in men with testicular cancer, compared with those without.

With CRISPR, researchers can edit a single gene in healthy cells and compare them to unchanged cells from the same source.

A more advanced experiment uses «single - worm PCR» to examine the mechanism of RNAi - comparing the DNA of worms with identical phenotypes induced either by RNAi or a gene mutation.

With a single injection, mice showed improvements in motor coordination, weight gain and longevity compared to those without this gene therapy.