Practice Punnett Squares – Predicting Genetic Outcomes - 2.3 | Unit 5: Introduction to Genetics and Heredity | IB MYP Grade 9 Biology
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2.3 - Punnett Squares – Predicting Genetic Outcomes

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does a Punnett square represent?

💡 Hint: Think about how it helps in predicting traits.

Question 2

Easy

When creating a Punnett square, what is the first step?

💡 Hint: Consider what information you need before making combinations.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does a Punnett square predict?

  • Genotype ratios
  • Phenotype ratios
  • Both genotype and phenotype ratios

💡 Hint: Consider what information is derived from the combinations.

Question 2

True or False: Both parents contribute two alleles to the offspring through a Punnett square.

  • True
  • False

💡 Hint: Remember how alleles are inherited from each parent.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A homozygous tall plant (TT) is crossed with a heterozygous tall plant (Tt). Using a Punnett square, determine the expected genotypic and phenotypic ratios.

💡 Hint: Create the Punnett square and analyze the resulting combinations.

Question 2

If a plant with genotype Tt is crossed with another plant that is also Tt, and a third plant that is tt is introduced, how would you expect the phenotype ratios to result? Draw Punnett squares to support your answer.

💡 Hint: Analyze each crossing individually to understand the outcomes.

Challenge and get performance evaluation