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NEETZoologyPrinciples of Inheritance and Variation

Type of Cross Examples A. Monohybrid cross 1. Crossing F1 hybrid with recessive parent B. Dihybrid cross 2. Crossing two F1 hybrids C. Test cross 3. Crossing two plants differing in two traits D. Back cross 4. Crossing two plants differing in one trait

Options

  1. AA - 3, B - 4, C - 2, D - 1
  2. BA - 4, B - 2, C - 3, D - 1
  3. CA - 2, B - 1, C - 4, D - 3
  4. DA - 4, B - 3, C - 1, D - 2

Correct answer

D. A - 4, B - 3, C - 1, D - 2

Step-by-step solution

Monohybrid cross: Cross between plants differing in one trait. Dihybrid cross: Cross between plants differing in two traits. Test cross: Cross between F1 hybrid and recessive parent. Back cross: Cross between F1 hybrid and either of the parents.

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