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Learning objective

Define genetic diversity as the number of different alleles in a population.

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Topic

Genetic information official content

Subtopic

Genetic diversity and adaptation

Aqa A Level BiologyGenetic information, variation and relationships between organisms

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Quick explanation

Define genetic diversity as the number of different alleles in a population

  • This point belongs to Genetic information official content, especially Genetic diversity and adaptation.
  • You need to be able to define genetic diversity as the number of different alleles in a population.
  • The key ideas to know are allele and genetic diversity.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

allelegenetic diversity

Why it matters

This objective helps connect Genetic diversity and adaptation to exam-style questions, flashcards, and revision notes for Genetic information official content.

Quick student answer

What is genetic diversity?

Direct answer

Genetic diversity refers to the number of different alleles present in a population, which contributes to the overall genetic variation.

Key terms

  • Allele: An alternative form of a gene that arises by mutation and is found at the same place on a chromosome.
  • Genetic diversity: The total number of different alleles in a population, contributing to the genetic variation within that population.

Common trap

Confusing genetic diversity with genetic variation: Genetic diversity specifically refers to the number of different alleles, while genetic variation encompasses the differences in alleles and their expression in phenotypes.

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What is genetic diversity?

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