7
Question
Mendel formulated the law of purity of gametes on the basis of _______________
Mendel formulated the law of purity of gametes on the basis of _______________
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Solution
The correct option is B Monohybrid cross
- The monohybrid cross-refers to inheritance of singe contrasting trait by two parents at a time. For example, a cross of tall (T) and dwarf (t) pea plants (TT x tt). Mendel observed that monohybrid cross between two pure breeding varieties yields F1 generation which exhibits the dominant trait; although factor for a recessive trait is present in F1 hybrids. Self-fertilization of F1 generation obtains F2 generation which exhibits both dominant and recessive traits in the 3:1 phenotypic ratio. This laid the foundation of the law of purity of gametes which states that the two factors for a trait, present together in a heterozygous individual, do not get mixed and are separated during gametogenesis.
- The monohybrid cross-refers to inheritance of singe contrasting trait by two parents at a time. For example, a cross of tall (T) and dwarf (t) pea plants (TT x tt). Mendel observed that monohybrid cross between two pure breeding varieties yields F1 generation which exhibits the dominant trait; although factor for a recessive trait is present in F1 hybrids. Self-fertilization of F1 generation obtains F2 generation which exhibits both dominant and recessive traits in the 3:1 phenotypic ratio. This laid the foundation of the law of purity of gametes which states that the two factors for a trait, present together in a heterozygous individual, do not get mixed and are separated during gametogenesis.
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