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Question

(C) The cross between tall plants with red flowers $(TTRR)$ and dwarf plants with white flowers $(ttrr)$ is a dihybrid cross.In a dihybrid cross,Mende

Vedclass · Accepted Answer

$9 : 3 : 3 : 1$

Vedclass · Answer

(C) The cross between tall plants with red flowers $(TTRR)$ and dwarf plants with white flowers $(ttrr)$ is a dihybrid cross.In a dihybrid cross,Mendel observed that the $F_1$ generation consisted of all tall plants with red flowers $(TtRr)$.When these $F_1$ plants were self-pollinated,the $F_2$ generation exhibited four different phenotypes in the ratio of $9 : 3 : 3 : 1$.This ratio represents $9$ tall-red,$3$ tall-white,$3$ dwarf-red,and $1$ dwarf-white plants.Therefore,the correct option is $(c)$.

When tall plants with red flowers were crossed with dwarf plants having white flowers,Mendel found the phenotypic ratio of the $F_2$ progeny to be:

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