Selective breeding

What is another term for selective breeding

Artificial selection

What is selective breeding

The process by which humans bread plants and animals for particular genetic characteristics

How long have humans been doing selective breeding

For thousands of years since they first bred food crops from wild plants and domesticated animals

4 key statements in a selective breeding question

Involves choosing parents with the desired characteristic

They are bred together

From the offspring those with the desired characteristics are bred together

This continues over many generations until all the offspring show the desired characteristics

What to do for the selective breeding writing question

Always say the “largest” or “biggest” fo the desired characteristic

Link to question

Why selectively breed?

The characteristics can be chosen for usefulness or appearance

4 reasons to selectively breed

Disease resistance in food crops

Animals which produce more meat and milk (higher yield)

Domesticate animals (dogs) with a gentle nature

Large or unusual flowers

Problem with selective breeding

Can lead to inbreeding where some breeds are particularly prone to disease or inherited defects