A common trait found in orange tabby cats is the following: being awesome (A) is dominant to being average (a).
A male cat that is homozygous dominant for the A trait is mated with a female cat that is homozygous recessive.
What is the probability that they will have an offspring who is heterozygous? out of
The offspring's genotype is determined by the combination of alleles from each parent. In this case, the male cat is homozygous dominant (AA) and the female cat is homozygous recessive (aa).
When these two parents mate, their possible combination of alleles are:
Male gametes: A
Female gametes: a
The possible genotypes of the offspring are: Aa
Since the male cat is homozygous dominant (AA), all of his gametes contain the dominant allele (A). Therefore, all of the offspring will inherit the A allele from the male cat.
Since the female cat is homozygous recessive (aa), all of her gametes contain the recessive allele (a). Therefore, all of the offspring will inherit the a allele from the female cat.
Thus, all of the offspring will be heterozygous (Aa).
Therefore, the probability of having an offspring who is heterozygous is 1 (or 100%) out of 1.