unit 3 selective breeding

Question 1

what is selective breeding

Answer 1

-breeding paticular animals for particular characteristics
-we choose which species would reproduce and survive so natural selection is affected

Question 2

what is the process of selective breeding

Answer 2

1.from existing stock, select ones with desirable characteristics and breed them together
2.select the best of the offspring and breed them
3.continue this over several generations
4. eventually all offspring will be desirable

Question 3

examples of desirable characteristics

Answer 3

-meat
-products (milk,fur,wool)
-strength and speed
-appearance
plants:fast growing, bigger,fruit,appearance

Question 4

how long have dogs been selectively breed

Answer 4

15000 years

Question 5

people want dogs for characteristics such as..

Answer 5

-hunting- good sight and speed
-hard work- strength and speed
-family and company- good temperament, appearance
-strength and speed
-hearding-smart and good temperament

Question 6

what is wrong with selective breeding

Answer 6

-inbreeding -genetic diease and defeats
-less variety in species so less chance of adapting