x-linked disorder

In fruit flies, eye color is a sex-linked trait.  Red (R) is dominant to white (r).

Which genotype shows a female fly with white eyes?

Which genotype shows a male with white eyes?

R = Red, r= white

Match the following. H= no hemophilia, h = hemophilia

• X^HX^H

• Male without hemophilia

• X^hX^h

• Male with hemophilia

• X^HY

• Female Carrier

• X^H X^h

• Female with hemophilia

• X^hY

• Female who is NOT a carrier

Which of the following genotypes belongs in the red box in the Punnett square?

• X^BX^b

• X^bX^b

• X^bY

• X^BY

Show punnett square for X^rX^r crossed with X^RY

Hemophilia is a recessive x-linked disorder.
Which genotype represents a female who is a carrier for hemophilia?

• X^HX^h

• X^hX^h

• X^HX^H

• X^hY

Tags

5.2 Complex inheritance patterns

DOK 2

Hemophilia (h) is recessive. Draw a punnett square for X^hX^h with X^HY

What is the likelihood of this cross have a child that is colorblind?

• 100%

• 75%

• 50%

• 25%

What is the chance that a daughter will be colorblind?

• 100%

• 50%

• 25%

• 0%

What chance will a boy will be colorblind?

• 100%

• 50%

• 25%

• 0%