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
what antigen does type a have?
a - antigen
what antigen does type b have?
b - antigen
what antigen does type o have?
no antigens
what antigens does type a & b have?
a & b antigens
antigens
sugar markers/tags that are attached to the outside blood cells
rh-factor (clotting antigen) =
positive blood
antibody
protein produced by blood cells that can bind to specific part of antigen
what antibody does type a have?
antibody b
what antibody does type b have?
antibody a
