Selective Breeding

Question 1

What is selective breeding?

Answer 1

When producing offspring, selective breeding is used to create the best, desirable characteristics. Farmers will choose their best animals or plants to breed and the offspring are more likely to share their parents treated due to holding a dominant allele.

Question 2

An advantage for selective breeding?

Answer 2

This will mean you will have the best features for your plants or animals and characters to sell and it will be fast and consistent.

Question 3

Disadvantages of selective breeding?

Answer 3

Selective breeding reduces variation within a species.

“Useful” genes may be lost, that could have been needed in the future for new deceases. Therefore the species could become extinct as you don’t have any other variation to breed with.

In- breeding ( closely related dogs are bred together) can cause genetically inherited diseases.

Question 4

How are organisms selectively bred?

Answer 4

1. Choose a desirable characteristic.
2. Select parents that show high levels of this desirable characteristic.
3. Breed these individuals.
4. Select the best offspring and breed again.
5. Repeat the process for many generations.