Of course, it gets even more complicated than that, because variations in genetics means that some metabolic types tolerate fats well and some do not, so diet tests administered without regard
for genetic differences will produce conflicting results, and the complication then gets even deeper in that hunger may be a generic response to nutritional deficiencies.
Thus, by studying twins, the researchers could control
for genetic differences and tease out the effect of methylation.
To separate the influence of random drift from active adaptation, the researchers looked
for genetic differences between urban and rural mice that were too extreme to be explained by drift alone.
Scientists have long looked
for genetic differences in these fortunate individuals — and they've already found a few.
To find the gene itself, Yoshiura and his colleagues looked
for genetic differences in this region among 64 Japanese with dry earwax and 54 Japanese with wet earwax.
Vance and van der Walt looked
for genetic differences in mitochondrial DNA among nine lineages of European origin.
In the new study, researchers analyzed DNA from more than 180,000 people, looking
for genetic differences that dictate height.
Many companies worry that testing
for genetic differences will narrow their market and squelch their profits.
Not exact matches
Lewis S. Ford has addressed himself directly to the claim
for nonphysical (but still temporal) successiveness in the
genetic process in his article «On Genetic Successiveness: a Third Alternative» (1: 421 - 25).1 Ford begins by pointing out that the differences between phases in a single occasion can not be mere differences in complexity of integ
genetic process in his article «On
Genetic Successiveness: a Third Alternative» (1: 421 - 25).1 Ford begins by pointing out that the differences between phases in a single occasion can not be mere differences in complexity of integ
Genetic Successiveness: a Third Alternative» (1: 421 - 25).1 Ford begins by pointing out that the
differences between phases in a single occasion can not be mere
differences in complexity of integration.
Incidentally, there are different figures
for human
genetic similarity to apes because there are different means of measuring the
difference.
Because it absorbs sunlight better, which is required
for the processing of vitamin D.
Genetic differences that are advantageous to the survival of the species have a higher rate of survival and reproduction, and over eons of time, through geographic isolation and genetic draft, new species arise from t
Genetic differences that are advantageous to the survival of the species have a higher rate of survival and reproduction, and over eons of time, through geographic isolation and
genetic draft, new species arise from t
genetic draft, new species arise from the old.
The above established relationship between the philosophy of organism and the
genetic early forms of our perception of reality say nothing against the philosophy of organism, but rather say something
for it, on the condition that the existence of essential niveau
differences, the integration of necessary differentiations, and the rejection of anthropomorphic formations, point to an obvious need
for a whole new conceptual elaboration.
This myth proposes that actual
genetic differences exist between ethnic groups or social classes,
differences distinctive enough that society is justified in allowing «more naturally capable» groups to be responsible
for making the decisions that affect everyone.
The close
genetic makeup of man and animals only serves to negate the argument
for evolution since the gulf of
difference between them has not been explained.
I then had testing done through Enterolab and it came back positive (as did the
genetic test), but regardless the
difference in my health (mentally and physically) being gluten free was more than enough
for me to swear off the stuff
for good.
The factors responsible
for differences in training adaptability are not known, but
genetic factors seem likely, as will be described subsequently.
As
for the disparity in skull features, a number of factors, including diet and random
genetic drift, could account
for differences in appearance between modern Native Americans and Kennewick Man.
If chemical profiles are mainly determined by genetics, this kind of analysis could be used as a rapid screen
for determining
genetic differences.»
But when
genetic, morphological, and behavioral
differences all point to a new species, says David Brown, the geneticist whose study argued
for dividing giraffes into six species, that is not rebranding.
What has been called the modern synthesis of the two fields emerged in the 1940s with the idea that the sorts of
genetic differences you could observe in populations, right out your window, when compounded and extrapolated over vast periods of time, could account
for the large - scale changes we see in the fossil record.
The greater similarities seen in the twins indicated that
genetic factors accounted
for at least 75 % of the
differences in ADHD.
Careful
genetic analysis not only confirmed long - standing suspicion that Y. pestis was the microbe responsible
for the plague, but also found slight
genetic differences among bacteria from various remains at the site — suggesting that even as it killed millions, the bacterial strain itself was dying off.
Because it takes hundreds of thousands of years
for the
genetic evolution of natural selection to occur, these sex
differences in navigation strategies probably have their roots in the Stone Age.
Science has recognized such
genetic differences for at least a decade.
For bear evolution, studying the paternally inherited Y chromosome is therefore a rich source to trace both the geographic dispersal and
genetic differences between bear species.
The
differences in fear sensitivity are likely to be innate, at least in part: dysfunction in the amygdala, a brain area important
for processing fear, has previously been linked to psychopathic behaviour, and
genetic factors must underlie some of these
differences.
Professor Dominic Kwiatkowski, one of the lead authors of the paper, from the Wellcome Trust Sanger Institute and the Wellcome Trust Centre
for Human Genetics, said: «We can now say, unequivocally, that
genetic variations in this region of the human genome provide strong protection against severe malaria in real - world settings, making a
difference to whether a child lives or dies.
The researchers, led by Sara Jaeger, Jeremy McRae, and Richard Newcomb of Plant and Food Research in New Zealand, found that
for four of the ten odors tested, there was indeed a
genetic association, suggesting that
differences in the
genetic make - up determine whether a person can or can not smell these compounds.
In fact,
genetic factors appeared to account
for slightly more than 50 percent of the
difference between twins, the Monell group calculates.
He omits,
for example, the studies showing that children who are abused or neglected are only slightly more likely to become delinquent than children who are not: once again the
difference may be caused by
genetic inheritance rather than by the parents» maltreatment.
«Our findings show that population
differences in transcriptional responses to immune activation are widespread, and that they are mainly accounted
for by
genetic variants that differ in their frequencies between human populations,» said Lluis Quintana - Murci of Institut Pasteur and CNRS in Paris, France, who led one of the two studies.
But to be fully confident in the
genetic evidence they had gathered, the scientists also examined the turtles
for differences in body shape and size.
The short answer is that there is no biological basis
for «race» as we know it, but among populations there can be small but measurable
genetic differences.
Reasons
for the
differences in results could include
genetic adaptations in plants to develop more quickly.
None of the other
genetic groups could be subdivided, suggesting that there isn't enough
genetic difference to distinguish people from northern versus southern Europe,
for example.
To try to answer that, we looked
for molecular
differences that could reveal aspects of motor neuron diversity — and the study started with a molecular screen to try and find
genetic differences between different subtypes of motor neurons.
In 1987, you co-authored a paper with Naruya Saitou describing the neighbor - joining method, a novel algorithm
for creating evolutionary trees by working backward based on key
genetic differences between related species, the idea being the more recently one species diverged from another, the more similar their DNA will be.
Deep sequencing of isolates taken from a single patient carrying MRSA
for the longest period revealed that although all isolates were of the same clade, there were small
genetic differences between them, suggesting bacterial diversity within a single carrier.
«Understanding well the
genetic similarities and
differences between human populations is key
for public health,» said Dr Simon Myers.
For comparison, the
genetic differences among giraffe species are at least as great as those between polar and brown bears.
After collecting information from school counselors about any social difficulties experienced by the girls, Skuse's group found that 40 % with the maternal X chromosome were likely to have problems at school, versus only 16 % of girls with the paternal X. «It seemed to us there could only be a
genetic explanation
for that,» Skuse says, because he says there were no other
differences between the two sets of girls.
Teasing out the
difference between heredity and environment is key to narrowing the field when you're looking
for a
genetic relationship to a particular disease.»
For example, the team found that many of the
genetic differences were related to the biochemical function of metal ion binding, and metals are known to influence
differences in pigmentation and mandible shape between the two T. cristinae ecotypes.
Techniques that scan
for hundreds of thousands of
genetic differences at once are linking particular variations to particular traits and diseases in ways not possible before.
They are there to compensate
for the
genetic or hormonal
differences that are necessary to create two sexes with different sets of genitals and reproductive behaviours.
«These twin studies show that there's a
genetic basis
for the
differences in how easy or enjoyable children find learning.»
Measuring
differences between the ancient and modern DNA, Malhi and colleagues calculated a rough date
for the
genetic shift, about 175 years ago.
There are
genetic differences,
for a start — or even the fact that unpleasant associations of your grandmother's potatoes will ruin the most artfully seasoned canapé.
New research links specific inherited
genetic differences (alterations) to an increased risk
for eye (uveal) melanoma, a rare form of melanoma that arises from pigment cells that determine eye color.
But the finding that all these
genetic differences trigger the same cellular pathway provides hope
for others.