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Learning objective

Identify that the order of bases in a gene determines the order of amino acids in a specific protein (detailed knowledge of nucleotide structure is not necessary).

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE BiologyInheritanceSupplement content

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Quick explanation

Identify that the order of bases in a gene determines the order of amino acids in a specific protein (detailed knowledge of nucleotide structure is not necessary)

  • This point belongs to Chromosomes, genes and proteins, especially Chromosomes, genes and proteins outcomes.
  • You need to be able to identify that the order of bases in a gene determines the order of amino acids in a specific protein (detailed knowledge of nucleotide structure is not necessary).
  • The key ideas to know are State.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

State

Why it matters

This objective helps connect Chromosomes, genes and proteins outcomes to exam-style questions, flashcards, and revision notes for Chromosomes, genes and proteins.

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Paper 4 structured question: Chromosomes, genes and proteins

Paper 4Theory (Extended)1 marks

Description

Gene base order

A gene is a sequence of bases that codes for a protein. The order of these bases determines the order of amino acids in the protein.

  1. a

    State what determines the order of amino acids in a protein.

    Aim for approximately 1 distinct marking point.

    [1]
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