NEET Biology question

The genotype of a plant showing the dominant phenotype can be determined by

(A)Test crossCorrect
(B)Dihybrid cross
(C)Pedigree analysis
(D)Back cross

Answer: (A)

Solution

A test cross — crossing the dominant-phenotype individual with the homozygous recessive parent — is specifically used to determine whether that individual is homozygous or heterozygous, since a homozygous dominant parent gives all-dominant offspring while a heterozygous parent

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Question ID VK-119534