Practice Inheritance Of One Gene (4.2) - Principles of Inheritance and Variation

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6 sample questions

Question 1.
What is an allele?
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Think of traits like eye color or height.
Question 2.
What does the term 'dominant' mean in genetics?
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It masks the recessive trait.
3Question 3.
What term describes an allele that is expressed over another?
- Dominant
- Recessive
- Segregated
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It makes the other trait invisible.
4Question 4.
In the F2 generation of a monohybrid cross, what ratio of dominant to recessive traits is expected?
- True
- False
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Recall Mendel's findings.
Question 5.
A plant with the genotype Tt is crossed with a plant of unknown genotype that produces dwarf offspring. Determine the genotype of the unknown parent and explain your reasoning.
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Pay attention to the offspring's trait produced.
Question 6.
If TT and tt plants are crossed, what will be the genotypic and phenotypic ratios in the offspring? Discuss the implications for future generations if two Tt offspring are bred.
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Use a Punnett Square to visualize breeding outcomes.

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