selective breeding

Question 1

what is selective breeding?

Answer 1

selective breeding is when humans artificially select animals or plants that are going to breed so that genes for particular characteristics remain in population

Question 2

why might humans do selective breeding?

Answer 2

so organisms develop features that are useful or attractive

Question 3

why might animals such as cows undergo selective breeding?

Answer 3

to produce more meat or milk

Question 4

why might decorative plants undergo selective breeding?

Answer 4

to produce large or unusual flowers

Question 5

why might food crops undergo selective breeding?

Answer 5

to become resistant to disease

Question 6

why might dogs undergo selective breeding?

Answer 6

to have a good and gentle temperament

Question 7

describe the 4 stages of the process of selective breeding?

Answer 7

select animals/plants with desired characteristics, breed them together, select offspring with desired characteristics and breed them together and then continue over time and all offspring will have desired characteristic

Question 8

what is the problem with selective breeding?

Answer 8

if we breed together closely related animals or plants, we can get inbreeding, which reduces gene pool which means there is less change of any resistant alleles being present in population