If it was a double heterozygote, then aabb will be AaAaBbBb.
It will form 4 types of gametes since we have Aa, Bb. It will have aB, AB, ab, Ab.
An individual will form
only 2 type of gametes, Aa, Bb.
<span>polar heads outside the cell
non polar head inside the cell</span>
The answer is all of the above
Paleontology is the study of the history of life on earth as based on fossils.
Always start with the genotypic ratios, because they'll be the same. Since hidden variation is popping out, you can assume that both of the parents are heterozygous. The problems you get will be the F2 ratio of the cross between two homozygous individuals.
1:2:1 is the genotypic ratio for one locus. AA:Aa:aa.
1:2:1 is the phenotypic ratio for incomplete dominance. Incomplete dominance means that the heterozygote expresses differently from either homozygote.
3:1 is the phenotypic ratio for complete dominance.
2:1 is the phenotypic ratio for lethal recessive.
