(a)[1]
In Fig. 1.1, draw a circle around one monomer of DNA.
(b)[2]
Name the two bases that make up the base pair at X in Fig. 1.1 and give a reason for your answer.
(c)[1]
The statements 1-5 set out events that happen during DNA replication. 1. DNA polymerase makes a phosphodiester bond 2. DNA double helix is formed 3. hydrogen bonds break 4. hydrogen bonds are formed 5. the two strands of the double helix separate Write the numbers 1 to 5 in the spaces below to show the order in which these events happen. The first one has already been completed for you.
(d)[2]
A telomere is a region located at the end of a chromosome. Outline the function of telomeres.