In pea plants yellow seeds Y are dominant to green seeds y a

In pea plants, yellow seeds (Y) are dominant to green seeds (y) and round seeds (R) are dominant to wrinkled seeds (r). The genes for seed color and seed shape are on different chromosomes. Two true-breeding parents, one with yellow round peas and the other with green wrinkled peas, are crossed. Which of the following is/are accurate regarding the resulting F₁ plants? Check all that apply.

The genotype of the F₁ plants is YyRr

Half the F₁ plants have the genotype YYRR and half have the genotype yyrr

Half the F₁ plants have the genotype YR and half have the genotype yr

The F₁ plants have the following phenotypes – yellow round, yellow wrinkled, green round, green wrinkled – in equal proportions

All of the F₁ plants have yellow round seeds

Half of the F₁ plants have yellow round seeds and half have green wrinkled seeds

All of the F1 plants have green wrinkled seeds

The F₁ plants make only YR and yr gametes

The F₁ plants make YR, Yr, yR, and yr gametes in equal proportions

Solution

Correct statements:

1. The genotype of the F1 plants is YyRr

6.All of the F1 plants have yellow round seeds

10.The F1 plants make YR, Yr, yR, and yr gametes in equal proportions

Explanation:

A pea plant cross taken placed between homozygous and dominant for round (RR), yellow (YY) seeds with a pea plant that was homozygous and recessive for wrinkled (rr), green (yy) seeds, represented by the following notation:

RRYY x rryy

The initial cross of the plants are called the parental or P generation. The offspring of the RRYY x rryy cross, which is called the F1 generation, were all heterozygous plants with round, yellow seeds and the genotype RrYy.

Then next mendel cross is taken placed between two plants from the F1 generation. This step is the dihybrid cross and it is represented as:

RrYy x RrYy

So, The F1 plants make YR, Yr, yR, and yr gametes in equal proportions in F2 progeny of it\'s dihybrid cross.