artificial selection

Question 1

state 3 chara selected for in dairy cows

Answer 1

large vol of milk prod
long lactation period
high quality milk

Question 2

suggest a mech for the selective breeding of dairy cows

Answer 2

breed cows w/ best chara w/ bulls whose female offspring had best chara
breed together offspring w/des chara and dont if dont have best chara
continue for many generations

Question 3

name 3 modern procedures used to breed dairy cows

Answer 3

in vitro fertilisation
cloning
artificial insemination

Question 4

explain why is it important for artificial selection that we preserve species

Answer 4

preserved species are a source of genetic material and can be used to select for new varieties

Question 5

discuss the ethical considerations that should be made when using animals for selective breeding

Answer 5

will not be in pain
will not have shorter life expectancy
will not suffer difficulties w/health

Question 6

why are seed banks important

Answer 6

maintain biodiversity
a source of genetic material
seeds can be used to make future plan varieties