P6.2.3 - Selective Breeding

Question 1

Why do humans use selective breeding?

Answer 1

To obtain an organism with a particular type of characteristics

Question 2

Why do plant scientists selectively breed plants?

Answer 2

So plants with higher yields are produced so more food can be produced

Question 3

What are the benefits of selective breeding?

Answer 3

It allows new organisms to obtain the best set of possible characteristics

Question 4

Describe the process of selective breeding.

Answer 4

Identify the desirable characteristic. Obtain organisms that are high in this characteristic, and breed them. Continue doing this with the best possible organisms

Question 5

What is wheat?

Answer 5

An important agricultural crop

Question 6

State how selective breeding has benefitted wheat.

Answer 6

Larger ears and stronger stalks to help get them easier. Ripening occurs at the same time and they grow at the same height which makes farming them more efficient.

Question 7

What are the negatives of selective breeding?

Answer 7

It reduces variation, so a disease could make the species extinct, and a disease could be passed on when breeding