Heredity · Class 10 · CBSE Science
A cross between a tall pea plant (TT) and a short pea plant (tt) resulted in progeny that were all tall plants. What does this observation indicate?
Practice question from Heredity (Class 10 · CBSE Science), with the correct answer and a step-by-step solution.
easy · MCQ · Q-2EA0CA
A cross between a tall pea plant (TT) and a short pea plant (tt) resulted in progeny that were all tall plants. What does this observation indicate?
- A.Tallness is a recessive trait and shortness is dominant.
- B.Tallness is a dominant trait and shortness is recessive.Correct answer
- C.Both tallness and shortness are codominant traits.
- D.Height is not an inherited trait in pea plants.
Solution
In Mendel's monohybrid cross, when a homozygous tall plant (TT) is crossed with a homozygous short plant (tt), the generation consists entirely of tall plants (Tt). This shows that the trait expressed in the generation (tallness) is the dominant trait, while the unexpressed trait (shortness) is the recessive trait.
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