13. what results if a black andalusian fowl is crossed with a bluish - gray andalusian fowl?
a. what is the probability that they will be black?______%
b. what is the probability that they will be white?______%
c. what is the probability that they will be bluish - gray?______%

Question

Accepted Answer

# Explanation:
## Step1: Determine the genotypes
Let's assume that the allele for black color is $B$ and for white color is $b$. In Andalusian fowls, black ($BB$) and white ($bb$) show incomplete dominance. The bluish - gray color has the genotype $Bb$. A black fowl has genotype $BB$ and a bluish - gray fowl has genotype $Bb$.
## Step2: Set up the Punnett square
The cross is $BB\times Bb$. The gametes from the black fowl ($BB$) are all $B$. The gametes from the bluish - gray fowl ($Bb$) are $B$ and $b$. The Punnett square is:
| | $B$ | $b$ |
|---|---|---|
| $B$ | $BB$ | $Bb$ |

## Step3: Calculate the probabilities
- For black ($BB$): There is $1$ out of $2$ possible genotypes ($BB$ and $Bb$). So the probability of $BB=\frac{1}{2}= 50\%$
- For white ($bb$): There is $0$ out of $2$ possible genotypes that is $bb$. So the probability of $bb = 0\%$
- For bluish - gray ($Bb$): There is $1$ out of $2$ possible genotypes ($BB$ and $Bb$). So the probability of $Bb=\frac{1}{2}=50\%$

# Answer:
a. $50\%$
b. $0\%$
c. $50\%$

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QUESTION IMAGE

Question

Explanation:

Step1: Determine the genotypes

Step2: Set up the Punnett square

Step3: Calculate the probabilities

Answer: