16 Sources of genetic variation include Formation of new alleles altering gene

16 sources of genetic variation include formation of

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Macroevolution- Evolution of whole taxonomic groups over long periods of time. 16.) Sources of genetic variation include: Formation of new alleles, altering gene number or position, rapid reproduction and sexual reproduction. 17.) The Five Hardy-Weinberg Equilibrium Conditions Are: No gene flow Random mating Large population No natural selection No mutations 19.) Genetic Drift is the variation of allele frequencies between generations. Gene flow is the transfer of alleles from one population to another. 20.) Directional: Moves the population average in one direction Disruptive: Both extremes are favored Stabilizing: Removes both extremes from the population, increasing the median 21.) Sexual selection may make female species favor mating with males with colored feathers. Over time, this trait may become very common since those with it are more likely to reproduce. 22.) Having a heterozygote advantage means that heterozygotes at a specific locus have an advantage over either type of homozygote. An example could be with sickle cell, which shows up only in individuals homozygous for B polypeptide subunit of hemoglobin. Chapter 22 23.) A species is biologically described as a population that is reproductively isolated from any
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other species. 24.) Allopatric Speciation is when gene flow in a species is divided into a subpopulation by a geographic barrier. Sympatric Speciation is speciation which occurs without a barrier.
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  • Fall '17
  • Randy Smith
  • Evolution, Sasha Preston

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