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Question bank·1.2 What happens in cells (and what do cells need)?

1.2 What happens in cells (and what do cells need)?

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Question 13

A teacher is building a model of part of a DNA molecule. She has labelled pieces for the four bases: adenine (A), thymine (T), cytosine (C) and guanine (G).

Which two pieces should she join to show a complementary base pair?

[1]

A

Cytosine (C) and thymine (T)

B

Adenine (A) and cytosine (C)

C

Adenine (A) and guanine (G)

D

Cytosine (C) and guanine (G)

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1.2 What happens in cells (and what do cells need)? Questions

GCSE
Biology
1.2 What happens in cells (and what do cells need)?

184 exam-style questions on OCR GCSE Biology 1.2 What happens in cells (and what do cells need)?, covering 1.2.1 Structure of DNA, 1.2.2 Nucleotides and complementary bases, 1.2.3 Protein synthesis, 1.2.4 DNA structure and the proteins made, 1.2.5 Investigating enzymatic reactions, and 1.2.6 Mechanism of enzyme action. Each one has a worked solution and a mark scheme showing where the marks go.

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