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 ?

What are the genotypes of these flies:

white eyed, female ?

What are the genotypes of these flies:

red eyed female (heterozygous) ?

What are the genotypes of these flies:

red eyed, male ?

In a cross between a pure red eyed female and a white eyed male, what would the genotypes of the parents be?

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

What proportion/percent of the male children are colorblind?

Look at this cross: X^BX^b x X^BY

What proportion of the male children are colorblind?

H= normal blood clotting

h=hemophilia

X^HX^h x X^HY

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