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.
For a cross with four offspring, what is the probability that they will have an offspring who is heterozygous?
___ out of ____
To determine the probability of having an offspring who is heterozygous, we need to use the Punnett square.
Let's represent the male cat as AA and the female cat as aa.
When we cross AA with aa, the Punnett square would look like this:
A A
a Aa Aa
a Aa Aa
As we can see, all four offspring will be heterozygous, represented by Aa.
Therefore, the probability of having an offspring who is heterozygous is 4 out of 4.