A variety of pea plant called Blue Persian produces a ta...

Question

A variety of pea plant called Blue Persian produces a tall plant with blue seeds. A second variety of pea plant called Spanish Dwarf produces a short plant with white seed. The two varieties are crossed, and the resulting seeds are collected. All of the seeds are white; and when planted, they produce all tall plants. These tall F₁ plants are allowed to self-fertilize. The results for seed color and plant stature in the F₂ generation are as follows:
F₂ Plant Phenotype Number
Blue seed, tall plant. 97
White seed, tall plant 270
Blue seed, short plant 33
White seed, short plant 100
TOTAL 500

State the hypothesis being tested in this experiment.

Accepted Answer

Hello, everyone and welcome to today's video. So, in a mono hybrid cross between two P plans with the yellow sets, which has this genotype and green seats, which has this genotype. What is the expected genotype ratio of the offspring in the F two generation? Remember that we're talking about two generations after the parent generation. So we have to make the cross two times. Well, let's set up our first punnett square. So we can make the first cross between the homosexuals dominant yellow seats and the homo cycles recessive yellow seats. And that is exactly what we're going to be doing here. If we make this crust, we can see that we're going to obtain Hetero zegas organisms for all. So 100 header row zegas and this is usually what happens when we cross homocide is dominant and the homosexuals recessive organism. Remember that we're talking about the offspring in the F two generation. So we have to make this cross again, we have to make this cross using two heterocyclic organisms. So we're going to do just that once we make this crust, we're going to see that we're going to obtain a one or Homo Zika's one homosexuals, dominant organism to two or two heterosexuals, organisms to one or one homosexuals, recessive organism ratio. So this is the ratio that we're looking for when these two parents cross in the F two generation. So the correct answer choice here is going to be answer choice. A I really hope this helped you and I hope to see you on the next one.

Key Concepts

Mendelian Genetics

Phenotype and Genotype

Punnett Square

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