Disease Inheritance

Question 1

What is Autosomal Recessive?

Answer 1

Both parents must be heterozygous (carries) of the recessive trait. There is a 25% chance of their offspring having the disease.

Question 2

What diseases are Autosomal Recessive?

Answer 2

Sickle Cell Anemia, CF, PKU

Question 3

What is X linked recessive trait?

Answer 3

Trait is carried on the X chromosome and it usually affects male offspring. With each pregnancy there is a 25% chance of having a child with the trait. If the child is male, the chances are 50%. If female, there is a 50% chance she is a carrier.

Question 4

What is an X linked recessive disease?

Answer 4

Hemophilia