30. the parent generation have genotypes of aa bb and aa bb. what is the probability the f1 generation would…
30. the parent generation have genotypes of aa bb and aa bb. what is the probability the f1 generation would be aa bb?
Answer
Explanation:
Step1: Identify parental genotypes
The parent genotypes are $AA Bb$ and $AA bb$.
Step2: Determine probability for gene A
Cross $AA \times AA$: all offspring will be $AA$. $$P(aa) = 0$$
Step3: Determine probability for gene B
Cross $Bb \times bb$: offspring are $50% Bb$ and $50% bb$. $$P(Bb) = \frac{1}{2}$$
Step4: Calculate combined probability
Multiply the probabilities of the independent events. $$P(aa Bb) = P(aa) \times P(Bb) = 0 \times \frac{1}{2} = 0$$
Answer:
0 (or 0%)