In a cross,45 tall and 15 dwarf plants are pr | vedclass

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(C) The ratio of tall to dwarf plants is $45:15$,which simplifies to $3:1$.This $3:1$ phenotypic ratio is characteristic of a monohybrid cross between

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$Tt 	imes Tt$

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(C) The ratio of tall to dwarf plants is $45:15$,which simplifies to $3:1$.This $3:1$ phenotypic ratio is characteristic of a monohybrid cross between two heterozygous parents $(Tt 	imes Tt)$.According to Mendel's law of segregation,when two heterozygous individuals $(Tt)$ are crossed,the offspring genotypes are $1 TT : 2 Tt : 1 tt$,resulting in a phenotypic ratio of $3$ tall plants to $1$ dwarf plant.

In a cross,$45$ tall and $15$ dwarf plants are produced. The genotype of the parents is .....

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What does this diagram indicate?

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