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  • expression
  • Which Intellectual Superstar of Gene Expression Would You Rather Sleep With? (gnxp.com)
  • Blogger: Gene Expression - Edit Post "Notes on Sewall Wright: The Shifting Balance Theo. (gnxp.com)
  • correlation
  • With β ≫ 1, the correlation between the gene frequencies at any two points is very nearly independent of β, and hence is parameter-free for particular forms of the selection gradient. (pnas.org)
  • insulin
  • Over the past 3,000 years, various genes affecting metabolic function such as lactose digestion and insulin signaling, and affecting physical features such as eye color, have evolved. (visionlearning.com)
  • speciation
  • Allopatric speciation is when speciation occurs as a result of barriers this could be by mountain ranges, glaciers and canyons, continental drift (tectonic plates) or islands. (studymode.com)
  • As has already been noted above, speciation doesn't have to involve the appearance of brand new genes. (antievolution.org)
  • mutations
  • In 1939 Wright gave a useful statement of current assumptions at that time: 'Presumably any particular gene can arise at a single step from only certain of the others and in turn mutate only to certain ones but the latter may be capable of producing mutations which could not have arisen from the former at one step and so on through a branching network of potentially unlimited extent' (306). (gnxp.com)
  • The opportunity for mutations of a particular type will also depend on the frequency of the relevant genes in the population. (gnxp.com)
  • If a gene is changing in frequency, the opportunity for new mutations of that gene will also be changing. (gnxp.com)
  • With an unlimited chain of possible gene transformations, new favorable mutations should arise from time to time and gradually displace the hitherto more favored genes but with the most extreme slowness even in terms of geologic time' (150). (gnxp.com)
  • determines
  • And yet, just a few genes determines the ferocity of a Wolf and the gentleness of Greyhound (not to mention the low IQ of Greyhounds compared to Border Collies). (physicsforums.com)
  • selection
  • As this happens, selection begins to increase the frequency of B (the population moves out of the valley and selection pushes it towards the global fitness peak). (berkeley.edu)
  • Eventually, through the action of genetic drift combined with selection, the population moves from one local peak, through a valley of low fitness, to the global fitness peak. (berkeley.edu)
  • carrier
  • I am a female carrier of a red/green colorblind gene and have read that there is a probability of 1/2 of having an affected son if the father has normal vision. (thetech.org)
  • example
  • The classic example is the gene for sickle cell disease, which is devastating in individuals with only two copies of the allele, but protective against malaria in individuals with only one copy. (visionlearning.com)
  • individual
  • On Frank Salter's idea that every individual has a genetic interest in copies of his own 'distinctive genes' found in close relatives AS WELL AS in the wider population. (gnxp.com)