Half of the possible offspring have the same allele combination; AA homozygous dominant and the other half have the Aa heterozygous combination. Probability close probabilityThe extent to which ...

In example 2, only one parent (the father) has a copy of the recessive allele (Ff). There is no chance of them producing a child with cystic fibrosis. However, half the possible offspring will be ...

Therefore, each allele for a given gene is packaged into a separate gamete. For example, a fly with the genotype Bb will produce two types of gametes: B and b. In comparison, a fly with the ...