REMEMBER THIS...
p2 + 2pq + q2 = 1
P and Q are the frequencies of the alleles A and a
p2 + 2pq + q2 = 1
(AA) + (Aa) + (aa) = 1
At the Equilibrium, allele frequency does not change over time
EXAMPLE;
A particular species of fish is rarely seen, however we can find eggs and sperm in the water
(these are haploid = 1)
- The dominant allele 'R' codes for red scale colour
- The recessive allele 'r' codes for white scale colour
80% where 0.8 had Dominate 'R'
20% where 0.2 had recessive 'r'
RR (p2)- 0.8 x 0.8 = 0.64
Rr (pq)- 0.8 x 0.2 = 0.16
rR (pq)- 0.2 x 0.8 = 0.16
rr (q2) - 0.2 x 0.2 = 0.04
add all the numbers together the total should = 1
@Science_Nerd101 (Twitter)
@Science_Nerd101 (Twitter)
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