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Question

Genotype of hybrid is determined by
  1. Crossing one F1 progency with recessive parent
  2. Crossing one F1 progency with another F1 progency
  3. crossing one F2progency with female parent
  4. Crossing one F2 progency with male parent.

A
Crossing one F2 progency with male parent.
B
Crossing one F1 progency with recessive parent
C
Crossing one F1 progency with another F1 progency
D
crossing one F2progency with female parent
Solution
Verified by Toppr

The correct option is A Crossing one F1 progency with recessive parent
Genotype hybrid can be determined by a test cross. A test cross is carried out between the F1 generation hybrid and a double recessive parent. This cross helps determine the genotype of the F1 hybrid. If the hybrid is homozygous dominant then all the progeny will show the dominant phenotype and if the F1 hybrid is heterozygous dominant, then 50% of the progeny will show the dominant phenotype and 50% will show recessive phenotype. So, the correct option is 'Crossing one F1 progeny with recessive parent'.

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