Topic 4 Selective Breeding

Question 1

What is selective breeding?

Answer 1

Choosing parents with desirable traits to produce improved offspring.

Question 2

What is the first step of selective breeding?

Answer 2

Identify individuals with the desired characteristic.

Question 3

What happens after selecting parents?

Answer 3

Breed them together.

Question 4

What happens to the offspring?

Answer 4

Select the best ones and breed again.

Question 5

Why is selective breeding repeated for many generations?

Answer 5

To increase the frequency of the desired trait.

Question 6

What are advantages of selective breeding?

Answer 6

Higher yield, better disease resistance, improved behaviour in animals.

Question 7

What are disadvantages of selective breeding?

Answer 7

Reduced genetic variation, inbreeding, increased risk of inherited diseases.

Question 8

Why is reduced variation a problem?

Answer 8

It makes populations more vulnerable to new diseases.