When selfed,a particular plant always produces an F₁ with a phenotypic ratio of 2:1.If this plant is testcrossed,what is the expected phenotypic ratio in the progeny?

Question

Quizplus · Accepted Answer

The FS1U1B11S1U1B0 genotype can be represented as F1S1U1B1. When selfed, this plant produces two types of gametes: F1S1U1B1 and F0S1U1B1. The ratio of these gametes produced is 1:1. When these two types of gametes combine, the resulting progeny will be either F1S1U1B1F1S1U1B1 or F1S1U1B1F0S1U1B1 in a 1:1 ratio. In other words, the expected phenotypic ratio in the progeny of the testcross is 1:1.

When Selfed,a Particular Plant Always Produces an F1 with a Phenotypic

When Selfed,a Particular Plant Always Produces an F₁ with a Phenotypic