Practice Allele Frequency (1.2) - Genetics and Evolution - IB 12 Biology
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Allele Frequency

Practice - Allele Frequency

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a gene pool?

💡 Hint: Think of it as a genetic library for the population.

Question 2 Easy

How is allele frequency calculated?

💡 Hint: It's a fraction!

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the term allele frequency refer to?

The total number of genes in a population
How common a particular allele is
The number of individuals in a population

💡 Hint: Think about what it tells us about genetic variation.

Question 2

True or False: A small gene pool increases a population's chance of extinction.

True
False

💡 Hint: Consider the dangers of limited genetic variety.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A population of 150 individuals has allele counts of 90 A and 60 a. If 30 individuals migrate out, how would this impact the allele frequencies if gene flow was initially balanced?

💡 Hint: Consider the population's new total and proportions!

Challenge 2 Hard

Explain how a sudden mutation introducing a new allele could affect an already stable population's allele frequencies.

💡 Hint: Think about beneficial vs. harmful mutations and their survival rates.

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Reference links

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