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A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants because

  • a)
    shortness is the dominant trait

  • b)
    tallness is the recessive trait

  • c)
    tallness is the dominant trait

  • d)
    height of pea plant is not governed by fact T and t

Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A cross between a tall plant (TT) and short pea plant (tt) resulted in...
Explanation of the correct option: C.



  1. According to the Mendel's first law of inheritance or law of dominance, the hybrid offspring produced will only inherit the dominant trait in the phenotype.

  2. The alleles that are suppressed are known as recessive traits while that determines the trait are known as dominant traits.

  3. A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants because tallness is the dominant trait.

  4. Thus, tallness is the dominant trait.

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Most Upvoted Answer
A cross between a tall plant (TT) and short pea plant (tt) resulted in...


Explanation:

Genetic Basis:
- In this case, the tall plant (TT) is the dominant trait, while the short pea plant (tt) is the recessive trait.
- When a tall plant (TT) is crossed with a short pea plant (tt), all the offspring will inherit one dominant allele for tallness from the tall plant parent.

Dominant and Recessive Traits:
- Tallness (T) is the dominant trait in this case, which means that even if an individual has one allele for tallness (Tt), the dominant trait will be expressed.
- Shortness (t) is the recessive trait, meaning that an individual must have two copies of the recessive allele (tt) to exhibit the short phenotype.

Punnett Square:
- When a tall plant (TT) is crossed with a short pea plant (tt), the Punnett square will show that all the offspring will inherit one allele for tallness (Tt).
- Since tallness (T) is dominant, all the offspring will exhibit the tall phenotype.

Conclusion:
- Therefore, in this cross between a tall plant (TT) and a short pea plant (tt), all the progeny will be tall plants because tallness is the dominant trait in this genetic scenario.
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A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants becausea)shortness is the dominant traitb)tallness is the recessive traitc)tallness is the dominant traitd)height of pea plant is not governed by fact T and tCorrect answer is option 'C'. Can you explain this answer?
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