Biology 1001A Chapter Notes - Chapter 18.3: Conservation Biology, Gene Flow, Allele Frequency
31 Mar 2016
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Collagen synthesis disruption in ehlers-danlos syndrome loose skin, weak joints: lethal mutations: kills if gene is expressed. 18. 3b gene flow: gene flow: organisms or genetic material from other population introduce new alleles, populations are not completely closed and can be open to migration, dispersal agents: eg. wind, seed carrying animals responsible for gene flow. Immigrant must reproduce in population contribute to gene pool: evolutionary importance depends on differentiation between populations and. Rate of gene flow very different = lots of genetic variability, similar = not. More than half loci in plants and invertebrates are polymorphic: chromosomal and mitochondrial dna suggest every locus exhibits some variability in nucleotide sequence (individual to individual population of same species or between, may not all affect phenotype. Inherited traits can enable individuals to survive better and produce more offspring than others: natural selection: traits become more common in generations violates hardy.
