bio lab 6 Flashcards
allele
one of two variants of a gene; 2 alleles per genotype
genotype
particular combination of alleles for particular gene for a trait - eye color
phenotype
observable expression of trait - hair color
heterozygous genotype
2 different alleles
homozygous recessive
2 recessive alleles (-,-)
homozygous dominant
2 dominant alleles (+,-)
hardy weinburg –> evolution
shows allelefrequencies we can expect if NO evolution was occuring + helps detect evolution by comparison
hardy weinburg principle
random mating, large population, no immigration/emigration, no natural/sexual selection, no mutations
purpose of hardy weinburg
see how frequently genes evolve
p =
frquency of dominant allele
q =
frequency of recessive allele
p2
frequency of homozygous dominant
q2
frequency of homozygous recessive
2pq
frequency of heterzygous
hardy weinburg equation
p2+2pq+q2 = 1