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Chromosomes, genes and proteins answer explanations

Review worked answers and explanations for Chromosomes, genes and proteins. Aligned to Cambridge IGCSE Biology.

Answer explanations

Question 1 of 24

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Paper 3 structured question: Chromosomes, genes and proteins

Paper 3Theory (Core)2 marks

Diagram Description

Diagram of a chromosome

A diagram shows a chromosome with a label pointing to DNA and another label pointing to genes along the DNA strand.

  1. a

    State what chromosomes are made of.

    [1]
  2. b

    Identify what genetic information is held in chromosomes.

    [1]