Conservation Biology- Part 2
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Heterozygous offspring have a higher survival and fitness compared to either homozygous parent
Relative reproductive output of an individual in a population compared to everyone else
Do Cheetas have very little or a lot of genetic diversity?
Very little genetic diversity
Mating with relatives
Define inbreeding depression
Loss in vigor and fitness due to an increase in homozygosity
What causes populations to vary genetically?
1.) natural selection may produce populations with different genetic/phenotypes being favored
2.) neutral evolutionary mechanisms (e.g. genetic drift, founders effect, and bottlenecks)
Define genetic drift
random loss/fixation of alleles in a population
Define founders effect
- The establishment of a new population by a few original founders which carry only a small fraction of the total genetic variation of the population.
- The result is that a given allele, gene, or chromosomes, or part of a chromosome found in a member of the popultation can be traced back to one ancestral individual.
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