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

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Question 8

DNA consists of two strands.

This is the base sequence found in one strand:

CGA \text{CGA} CGA

Which is the complementary base sequence of the second strand?

A

CGA\text{CGA}CGA

B

GCT\text{GCT}GCT

C

GCU\text{GCU}GCU

D

TCG\text{TCG}TCG

Markscheme

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

  1. GCSE
  2. /Biology
  3. /1.2 What happens in cells (and what do cells need)?

72 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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