Chromosomes in relation to evolution

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    • #6435
      Fromage
      Participant

      If variation among genes is the raw material that forms the basis for evolution (as my textbook says), then does that mean that organisms with a greater number of chromosomes have a faster rate or higher incidence of evolving?

    • #61284
      2810712
      Participant

      greater no. of chromosomes may or may not mean greater genetic variation, and the variation at a particular locus is also required in the population…And the availibility of raw material is an important point, so the rate of change of gene frequencies in the adaptive landscape also depends upon the viability of the variants possible, so even if alot’f mutants are available , and their viability is very less, then there won’t be gene frequency change to major extent, i.r. in ur words more rate/incidence of evolution…

    • #61285
      2810712
      Participant

      greater no. of chromosomes may or may not mean greater genetic variation, and the variation at a particular locus is also required in the population…And the availibility of raw material is an important point, so the rate of change of gene frequencies in the adaptive landscape also depends upon the viability of the variants possible, so even if alot’f mutants are available , and their viability is very less, then there won’t be gene frequency change to major extent, i.e. in ur words more rate/incidence of evolution…

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