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NEETZoologyPrinciples of Inheritance and Variation

What did Mendel propose about dissimilar factors in a pair?

Options

  1. AThey blend together
  2. BOne dominates the other
  3. CThey are both expressed equally
  4. DThey cancel each other out

Correct answer

B. One dominates the other

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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