Skip to content

Course home

Sign up

3.2 DNA and protein synthesis

EasyMediumHard
12345678910111213141516171819202122232425262728293031
Question 7
F

A complete double-stranded DNA fragment has 150 base pairs. It contains 90 guanine bases.

How many thymine bases and phosphate groups does the fragment contain?

[1]
A

60 thymine bases and 300 phosphate groups

B

30 thymine bases and 300 phosphate groups

C

60 thymine bases and 150 phosphate groups

D

30 thymine bases and 150 phosphate groups

Markscheme

3.2 DNA and protein synthesis Questions

  1. GCSE
  2. /Biology
  3. /3.2 DNA and protein synthesis

44 exam-style questions on Edexcel GCSE Biology 3.2 DNA and protein synthesis, covering 3.2.1 DNA structure as a polymer, 3.2.2 Genome and gene definitions, 3.2.3 Extracting DNA from fruit, 3.2.4 Base order determines protein shape, 3.2.5 Stages of protein synthesis, 3.2.6 Non-coding DNA variants affecting phenotype, and 3.2.7 Coding DNA variants affecting phenotype. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank