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NEETZoologyPrinciples of Inheritance and Variation

Which factor is dominant in the context of tall and dwarf traits?

Options

  1. AT (for tallness)
  2. Bt (for dwarfness)
  3. CBoth are dominant
  4. DNeither is dominant

Correct answer

A. T (for tallness)

Step-by-step solution

As Mendel found the phenotype of the F1 heterozygote Tt to be exactly like the TT parent in appearance, he proposed that in a pair of dissimilar factors, one dominates the other (as in the F1 ) and hence is called the dominant factor while the other factor is recessive . In this case T (for tallness) is dominant over t (for dwarfness), that is recessive. He observed identical behaviour for all the other characters/trait-pairs that he studied.

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