Genetically Inherited Diseases and selective breeding

Question 1

What is cystic fibrosis

Answer 1

Cystic fibrosis is an disease. It affects the lungs and digestive system. The air passages in lungs are coated with a flow of , which traps and removes bacteria. In a person with cystic fibrosis mucus is thicker than normal.

Question 2

Is cystic fibrosis recessive or dominant

Answer 2

Recessive

Question 3

What alleles does a person need to have it (cystic fibrosis)

Answer 3

Two recessive (cc)

Question 4

Polydactyl

Answer 4

Polydactyl is a dominant allele, you cannot carry it so if you have the letter P the you will suffer from it

Question 5

What is selective breeding

Answer 5

Selective breeding is when you select two things with different characteristics and keep breeding them and there offspring until you create a perfect version

Question 6

What are the main steps

Answer 6

1. Decide which characteristics are important enough to select
2. Choose parents that show these characteristics
3. Choose the best offspring from parents to produce the next generation.
4. Report the process continuously

Question 7

What are some problems with selective breeding

Answer 7

Ethical (increase in likelihood of disorders)

Welfare (breeding, mortality rate)