2016

Question 1

What do these results suggest about whether it is better to give two or three
doses of the vaccine? Give reasons for your answer.

Answer 1

Two doses as it produces more antibodies. Also, three doses would not be popular as it would be more expensive.

Question 2

What statistical test should the doctors have used? Give the reason for your
choice.

Answer 2

A t-test should be done as they are comparing two means.

Question 3

Give two ways doctors could use base sequences to compare different types of
HPV.

Answer 3

Compare the base sequences of DNA and then look for mutations that change the base sequence.

Question 4

Suggest why the development of a monopolar mitotic spindle would prevent
successful mitosis.

Answer 4

There would be no separation of chromosomes which means all the chromosomes would all go to one pole.