Practice Incomplete Dominance (4.2.2.1) - Principles of Inheritance and Variation

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6 sample questions

Question 1.
Define incomplete dominance.
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Think of blending colors.
Question 2.
What is the phenotype of the F1 generation when red and white snapdragons are crossed?
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Consider how colors mix.
3Question 3.
What is the phenotypic ratio in the F2 generation after self-pollinating pink snapdragons?
- 1:2:1
- 3:1
- 9:3:3:1
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Think about the mixing results of the flowers.
4Question 4.
True or False: Incomplete dominance results in one allele completely masking the other.
- True
- False
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Consider how colors mix instead of one covering the other.
Question 5.
If a red-flowered snapdragon (RR) is crossed with a white-flowered one (rr), how many distinct phenotypes can you anticipate in the F2 generation?
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Remember to think about how self-crossing works.
Question 6.
Given that pink flowers are created from a red and white snapdragon, predict the genotypes and phenotypes if pink flowers are crossed in the F2 generation.
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Consider potential combinations in the offspring.

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