Colorblindness is a recessive X-linked disorder.

Which genotype represents a male with normal vision?

What would the genotype be of a colorblind male?

The woman who is colorblind marries a man with normal vision. What is the probability that their sons will be colorblind?

Which best explains why males cannot be carriers of X-linked traits?

A woman who is a carrier for the sex-linked trait hemophilia has children with a man with hemophilia. What percentage of offspring would be expected to have hemophilia?

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X ^R X ^r ?

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X ^R Y ?

Look at this cross: X^B X^B x X^b Y

What proportion/percent of the male children are colorblind (b)?

N = Normal

n = colorblind

A normal vision female whose father was colorblind marries a man with colorblindness.

What proportion/percent of the children are colorblind (b)?

H= normal blood clotting

h=hemophilia

X^HX^h x X^HY

What is the probability that any of their offspring will have hemophilia?

Sex-linked traits are inherited on the sex chromosomes. An example of a sex-linked trait is colorblindness, a recessive trait inherited on the X chromosome. Which genotype shows a female with colorblindness?

Sex-linked traits are inherited on the sex chromosomes. An example of a sex-linked trait is colorblindness, a recessive trait inherited on the X chromosome. Which genotypes show individuals with normal vision?