Equations Flashcards
1
Q
Hamilton’s rule
Hardy Weinburg equation
Genetic distance
A
– rb > c
- (r=relatedness, b=benefit to recipient, c=cost of altruism
on performer)
- p2 + 2pq + q2 = 1
- =recombination frequency (RF)
RF = (no. of recombinant progeny/total no. of progeny) x 100
2
Q
Genetic vs environmental
Heritability
A
– Vp (Vt) = Vg + Ve
(Vp = total phenotypic variance Vg = genetic variance
Ve = environmental variance)
- H2 (broad sense) = Vg/ Vp
- h2 (narrow sense) = Va/ Vp
(Va = additive variance)
3
Q
Genetic ratios;
Mendal monohybrid cross
Mendal dihybrid cross
Lethal alleles
A
– 3:1 dominant:recessive
– 9:3:3:1
- Not 3:1 as expected, 2:1 instead (monohybrid cross)
4
Q
Reccesive epistasis
Dominant epistasis
A
- Not 9:3:3:1 as expected, 9:4:3 instead (dihybrid cross)
- Not 9:3:3:1 as expected, 12:3:1 instead (dihybrid cross)