In a particular plant, two genes control leaf shape and color. Round leaves (R) are dominant to jagged leaves (r). Yellow fruits (Y) are dominant to white fruits (y). A true-breeding round-leaved, yellow-fruited plant is mated with a jagged-leaves, white-fruited plant. What are the genotypes of the plants involved in this cross

Genotype of true breeding round-leaved, yellow-fruited plant  is RRYY

Genotype of true breeding jagged-leaves, white-fruited plant is rryy

Explanation:

Given -

R represents the allele for round leaves of the tree

r represents the allele for jagged leaves of the tree

R is dominant over r

Also,

Y represents the allele for yellow fruited tree

y epresents the allele for white fruited tree

Y is dominant over y

A cross is carried out between true breeding round-leaved, yellow-fruited plant and  jagged-leaves, white-fruited plant

Genotype of true breeding round-leaved, yellow-fruited plant  is RRYY

Genotype of true breeding jagged-leaves, white-fruited plant is rryy

RRYY * rryy

The gametes of RRYY are RY, RY, RY, RY

The gametes of rryy are ry, ry, ry, ry

Offspring produced by crossing RRYY  and rryy  would have genotyoe RrYy

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