1.10.Genetic Disorders

Question 1

Is sickle cell allele recessive or dominant?

Answer 1

It is recessive

so people who have two allele suffer from the disorder.

Question 2

Name 2 symptoms of sickle cell disease.

Answer 2

Easily tired and short of breath.

Painful joints as red blood cells stick together and block blood vessels. (Can be fatal)

Question 3

Name 2 symptoms of cystic fibrosis and explain their causes.

Answer 3

1. Breathing difficulty and infections due to lungs getting clogged with thick mucus.
2. Weight loss due to mucus blocking tubes that carry enzymes to small intestine to digest food, lack of which results in weight loss.

Question 4

What is pedigree analysis?

Answer 4

Pedigree charts that doctors use, as well as an understanding of how genetic disorders are inherited, to work out the probability that a person may have inherited a genetic disorder.

Question 5

Sickle cell disease and cystic fibrosis are what kind of diseases?

Answer 5

They are both genetic disorders.