Questions: Please calculate the probability of an AA BB cc phenotype from a cross of Aa Bb Cc x Aa Bb cc. Show your work.
Transcript text: Please calculate the probability of an AA BB cc phenotype from a cross of $\mathbf{A a} \mathbf{B b C c} \mathbf{x} \mathbf{A a} \mathbf{B b} \mathbf{c c}$. Show your work.
Solution
To calculate the probability of obtaining an AA BB cc phenotype from the cross Aa Bb Cc x Aa Bb cc, we need to consider each gene pair separately and then combine the probabilities.
Gene A (Aa x Aa):
Possible genotypes: AA, Aa, aa
Probability of AA: 1/4
Gene B (Bb x Bb):
Possible genotypes: BB, Bb, bb
Probability of BB: 1/4
Gene C (Cc x cc):
Possible genotypes: Cc, cc
Probability of cc: 1/2
Now, we combine these probabilities to find the probability of the AA BB cc phenotype:
\[
\text{Probability of AA BB cc} = \left(\frac{1}{4}\right) \times \left(\frac{1}{4}\right) \times \left(\frac{1}{2}\right) = \frac{1}{32}
\]
Therefore, the probability of obtaining an AA BB cc phenotype from this cross is \(\frac{1}{32}\).