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(A) To determine the offspring,we perform a dihybrid cross between a tall pink plant $(TtRr)$ and a tall white plant $(TTrr)$.$1$. Gametes produced by

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Tall pink and tall white

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(A) To determine the offspring,we perform a dihybrid cross between a tall pink plant $(TtRr)$ and a tall white plant $(TTrr)$.$1$. Gametes produced by the tall pink plant $(TtRr)$: $TR, Tr, tR, tr$.$2$. Gametes produced by the tall white plant $(TTrr)$: $Tr$ (only one type).By crossing these,we get the following genotypes in the offspring:- $TtRr$ (Tall,Pink)- $TTrr$ (Tall,White)- $TtRr$ (Tall,Pink)- $Ttrr$ (Tall,White)The resulting phenotypes are tall pink and tall white plants in a ratio of $1:1$.

Column $I$	Column $II$
$(a) XX-XO$ method of sex determination	$(i)$ Turner's syndrome
$(b) XX-XY$ method of sex determination	$(ii)$ Female heterogametic
$(c)$ Karyotype $45$	$(iii)$ Grasshopper
$(d) ZW-ZZ$ method of sex determination	$(iv)$ Female homogametic

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