use the pedigree on the right to determine the genotype of ryan.\n○ $x^{r}x^{r}$\n○ $x^{r}y$\n○…

use the pedigree on the right to determine the genotype of ryan.\n○ $x^{r}x^{r}$\n○ $x^{r}y$\n○ $x^{r}x^{r}$\n○ $x^{r}y$\ndone

use the pedigree on the right to determine the genotype of ryan.\n○ $x^{r}x^{r}$\n○ $x^{r}y$\n○ $x^{r}x^{r}$\n○ $x^{r}y$\ndone

Answer

Explanation:

Step1: Analyze male - X - linked inheritance

Males have one X - chromosome and one Y - chromosome. In X - linked inheritance, they inherit their X - chromosome from their mother.

Step2: Identify mother's genotype

Carol, Ryan's mother, has the genotype $X^{R}X^{r}$.

Step3: Determine Ryan's genotype

Ryan is male. He inherits a Y - chromosome from his father (Tim with genotype $X^{r}Y$) and an $X^{R}$ chromosome from his mother (Carol). So Ryan's genotype is $X^{R}Y$.

Answer:

$X^{R}Y$