Practice Pedigrees (3.4.4) - Genetics - IB 12 Biology
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Pedigrees

Practice - Pedigrees

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does a circle represent in a pedigree?

💡 Hint: Think about basic symbols used in diagrams.

Question 2 Easy

What is indicated by a shaded symbol?

💡 Hint: Consider what it means to have a trait or condition.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What symbol represents a male in a pedigree?

Circle
Square
Triangle

💡 Hint: Think about the basic symbols used.

Question 2

True or False: A shaded symbol in a pedigree chart indicates an unaffected individual.

True
False

💡 Hint: Remember the meaning of shading!

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You have a pedigree with several generations. Determine whether the trait is autosomal dominant or recessive based on affected individuals' distribution. Provide your reasoning.

💡 Hint: Look for parental contributions to phenotypes.

Challenge 2 Hard

Design a pedigree chart for a theoretical family with an autosomally recessive trait. Predict which individuals will show the trait and their genotypes.

💡 Hint: Use simple ratios based on common genetic crosses.

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Reference links

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