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Question

Out of tall and dwarf plants, ................ trait is dominant.

A
Tall
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B
Dwarf
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C
Both A and B
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D
None of these
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Solution

The correct option is B Tall
  • The dominant trait in genetics is a trait that will appear in the offspring if one of the parents contributes it.
  • Mendel started out with plants that "bred true". That is, when tall plants were self-pollinated (or cross-pollinated with others like them), plants in the following generations were all tall; when the short plants were self-pollinated (or cross-pollinated with others like them) the plants in following generations were all short.
  • Mendel found that if true-breeding Tall [T] plants are crossed (bred) with true-breeding short [t] plants, all the next generation of plants, called as F1, are all tall. It shows that tallness is the dominant trait.

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