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1.2 Cell division

1.2 Cell division

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Question 17
F

Figure shows one chromosome taken from a body cell. Three of the genes on this chromosome are marked P, Q and R.

Figure: One chromosome from a body cell, with three of its genes marked P, Q and R

image

a.

Give one similarity and one difference between gene P and gene Q.

[2]
b.

The chromosome in Figure carries about 1200 genes in total. Explain what this tells you about the length of one gene compared with the length of the whole chromosome.

[2]
Markscheme

1.2 Cell division Questions

  1. GCSE
  2. /Biology
  3. /1.2 Cell division

63 exam-style questions on AQA GCSE Biology 1.2 Cell division, covering 1.2.1 Chromosomes, 1.2.2 Mitosis and the cell cycle, and 1.2.3 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.

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