BIO 200LLB Lecture Notes - Lecture 15: Color Blindness, Panmixia, Genetic Diversity

• School: University at Buffalo
• Department: Biological Sciences
• Course: BIO 200LLB
• Professor: Herreid, C F

Document Summary

Change in the genetic makeup of biological population through time. Crossover (genetic recombination) or mutation or sex (fertilization) . Use and disuse or environment or need heredity new species. Food makes a difference, if you are starved it gets passed on. Study of change in the allele frequency in a population through time. A total collection of the alleles of a gene in a population. The larger the gene pool, the larger the variation. 1000 rabbits = 600 brown and 400 white. 500 homozygous brown rabbits bb =1000 b alleles. 100 heterozygous brown rabbits bb= 100 b alleles, 100 b alleles. 400 homozygous white rabbits bb= 800 b alleles. Total: 1100 b alleles and 900 b alleles (55% b and 45% b) Suppose the allele frequency in the original colonists was. P= fraction of gene pool with dominant allele (p=. 55) Q= fraction of gene pool with recessive allele (q=. 45)