Practice Inheritance Patterns - 2 | Genetics & Heredity | IB MYP Grade 8 Biology
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Inheritance Patterns

2 - Inheritance Patterns

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a dominant allele?

💡 Hint: Think about which trait would 'win' in appearance.

Question 2 Easy

Define homozygous.

💡 Hint: What about when both alleles are the same?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which allele would you expect to mask the presence of a recessive allele?

A recessive allele
A dominant allele
An intermediate allele

💡 Hint: Who 'wins' in terms of appearance when both alleles are present?

Question 2

True or False: Incomplete dominance results in a blended phenotype.

True
False

💡 Hint: Think about the color of flowers—do they mix or remain distinct?

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

If a plant exhibiting incomplete dominance for flower color (RR = red, WW = white) is crossed with a red flower, what color are the offspring expected to be?

💡 Hint: Draw a Punnett square to visualize the potential outcomes.

Challenge 2 Hard

Consider a trait for height in pea plants, controlled by two genes. If one gene is for tallness (T) and another for thickness (B), discuss how polygenic inheritance could lead to varying heights.

💡 Hint: Think about how mixing two ingredients can create different results.

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