Chapter 7- Variation

Question 0

Chance

Answer 0

Even if sampling bias is delt with, there is still a possibility that by pure chance the individuals choses may not be representative

Question 1

Sampling bias

Answer 1

Investigators may be selecting unrepresentative choices, either deliberately or unwittingly

Question 2

Random sampling

Answer 2

1) . Divide area into grid
2) . Using random numbers generated from a computer select random grid references
3) .Take samples at each grid reference

Question 3

Mutation

Answer 3

Sudden changes to genes that may or may not be passed to further generations

Question 4

Meiosis

Answer 4

Special form of nuclear division that forms the gametes

mixes up genetic material before it is passed into the gametes, all of which are therefore different

Question 5

Fusion of gametes

Answer 5

Which gamete fuses with which at fertilisation is random, furthering the variety