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Question

Test cross is used to


  1. Check heterozygosity in F1 generation
  2. Check heterozygosity in F2 generation
  3. Check independent assortment
  4. Both A and B

A
Check independent assortment
B
Both A and B
C
Check heterozygosity in F2 generation
D
Check heterozygosity in F1 generation
Solution
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In genetics, a test cross, first introduced by Gregor Mendel, involves the breeding of a dominant trait individual with a recessive individual, in order to determine the zygosity of the former by analysing proportions of offspring with the recessive phenotype. It checks heterozygosity in F1 generation.

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