Not exact matches
It makes sense that only a few
genes would suffice to
determine a trait such as body size, Ostrander says, because all dog breeds belong to the
same species, Canis familiaris, and most have taken shape in the last three centuries.
The
same could be said for the mechanisms that
determine which
genes or suites of
genes are turned on or off at particular times and places.
Sex
determining genes exist in several different variants, but close family members are likely to share the
same variants.
To
determine the rate at which DNA mutates, researchers compare different versions of the
same gene from two to several dozen species.
Genes, he says, «tune» a system to one morphic field or another in much the
same way that flipping a television's channel selector
determines which programs it receives.
Those results are the
same if the enhancers are intact but both copies of the
gene itself are defective, indicating that the amount of protein
determines the number of digits.
He analyzed
genes in 36 strains of staph to
determine their evolutionary relationships and showed that many had picked up the
same virulence and resistance
genes independently.
«If you line up these [variants] and
determine the likely function of the
genes, do they tell the
same story?»
Pugh and Venters further validated their surprising findings by
determining that these non-coding initiation machines recognized the
same DNA sequences as the ones at coding
genes, indicating that they have a specific origin and that their production is regulated, just like it is at coding
genes.
There are
genes that
determine whether the
same life event causes an increase or decrease in the volume of the hippocampus, and which therefore defines whether the stress is good or bad for our brain.
Schoppmeier and his colleagues are now trying to
determine whether Notch and related
genes turn on and off in the
same fashion in early spider embryos as they do in vertebrates.
He and others have recently used
gene - editing tools to correct mutations in human iPS cells but haven't used the
same combination of methods or done the
same set of experiments to
determine whether the iPS - derived cells are safe.
Elledge's and Chanda's teams used the
same basic technique to
determine which human
genes matter.
After decades of extrapolating about
gene function in trees based on
gene function in a tiny, less complex plant, a team of scientists has sequenced whole genomes —
determined the DNA sequence of all the
genes — from 544 unrelated trees of the
same species.
With the recent availability of high - throughput sequencing, it is possible to compare the genomes of many genomes of the
same species, and to
determine which
genes are conserved as part of the «core genome», and which
genes are found only in certain strains.
Every cell in the body has the
same DNA and
genes, so a cell's properties and functions are
determined by which
genes are turned on.
Color is
determined by several
genes so many different colored pups may be present in the
same litter.
If one sees a similar disease in one of the breeds which originally contributed to the TFT
gene pool it would be interesting to
determine whether it is the
same mutation causing it.
These colors are all controlled by the
same gene, with the shade of color
determined by the intensity of the inherited
gene.
Genetic, shared, and non-shared environmental effects were estimated for each temperamental construct and psychiatric disorder using the statistical program MX. Multivariate genetic models were fitted to
determine whether the
same or different sets of
genes and environments account for the co-occurrence between early temperament and preschool psychiatric disorders.