genetic disorders

Question 1

What are cystic fibrosis and Huntington’s disease caused by

Answer 1

A faulty allele of a single gene

Question 2

what are the symptoms of cystic fibrosis?

Answer 2

1. Thick sticky mucus in the gut, pancreas and air passages.
2. Infertility
3. chest infections
4. difficulty breathing
5. difficulty digesting food.

Question 3

what are the symptoms of Huntington’s disease?

Answer 3

1. Tremors
2. memory loss
3. loss of understanding
4. mood changes
5. loss of movement

Question 4

What is the chance of an offspring developing Huntington’s if one parent is a carrier?

Answer 4

50%.

Question 5

Huntington’s has a late onset. What does this mean?

Answer 5

It means that the symptoms will be present in the later stages of your life.

Question 6

Why does Huntington’s have no carrier?

Answer 6

Because it is caused by a dominant allele. You either have it or don’t. (HH) (Hh). So (hh) means your completely safe.