Question

what is the probability of the offspring having hemophilia for the cross that is shown in the punnett square? 0 percent 25 percent 50 percent 75 percent

Explanation:

Step1: Understand hemophilia inheritance

Hemophilia is an X - linked recessive disorder. Males have XY chromosomes and females have XX chromosomes. A male with an affected X chromosome (X^h) has hemophilia, and a female needs two affected X chromosomes (X^hX^h) to have hemophilia.

Step2: Analyze Punnett - square genotypes

The possible genotypes from the cross in the Punnett - square are X^HX^h, X^HY, X^hX^h, X^hY.

Step3: Count affected offspring

Out of 4 possible genotypes, 2 are affected (X^hX^h and X^hY).

Step4: Calculate probability

The probability is calculated as $\frac{\text{Number of affected genotypes}}{\text{Total number of genotypes}}=\frac{2}{4} = 0.5$ or 50%.

Answer:

50 percent