Biology 5090 · O Level · DNA

DNA — practice question

Fig. 6.1 presents a biological molecule.
(a(i))[1]

What is the name of this molecule?

(a(ii))[3]

Describe three features of the structure of this molecule.

(b)[2]

Animal and bacterial cells contain this molecule. Describe how the molecule differs in location and shape in animal and bacterial cells.

(c)[3]

Explain how this molecule controls cell function.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: deoxyribonucleic acid / DNA

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