Tomato Plants In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants with red and round fruit (FFRR) were crossed to pure breeding plants with yellow and oval fruit (ffrr). The red and round F1 progeny were then testcrossed to plants that were homozygous recessive for both genes (ffrr) with the following results: PhenotypesNumber of OffspringRed and round2 255Red and oval290Yellow and round310Yellow and oval2 145Convert the expected phenotypic ratio from Part A into the expected probability for each of the four phenotypes and record them in the table below.Calculate the probability for each of the four phenotypes observed in the cross from the data presented at the beginning of the question by dividing the number of progeny in each class by the total number of progeny and record these in the table below. Probability = Number of Progeny in Phenotype Class ÷ Total Progeny Compare the expected probabilities of each phenotype to the observed probabilities. Are the gene for fruit colour and the gene for fruit shape assorting independently? Explain.

Name: Tomato Plants In tomato plants, round fruit (R) is dominant to oval fr
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Description: Tomato Plants In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants with red and round fruit (FFRR) were crossed to pure breeding plants with yellow and oval fruit (ffrr). The red and round F1 progeny were then testcro

A test cross is a way to explore the genotpye of an organism. When a dominant phenotype i.e…

Answered: Tomato Plants In tomato plants, round…

Concepts of Biology

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ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

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Tomato Plants
In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants with red and round fruit (FFRR) were crossed to pure breeding plants with yellow and oval fruit (ffrr).

The red and round F₁ progeny were then testcrossed to plants that were homozygous recessive for both genes (ffrr) with the following results:

Phenotypes	Number of Offspring
Red and round	2 255
Red and oval	290
Yellow and round	310
Yellow and oval	2 145

Convert the expected phenotypic ratio from Part A into the expected probability for each of the four phenotypes and record them in the table below.
Calculate the probability for each of the four phenotypes observed in the cross from the data presented at the beginning of the question by dividing the number of progeny in each class by the total number of progeny and record these in the table below.
Probability = Number of Progeny in Phenotype Class ÷ Total Progeny
Compare the expected probabilities of each phenotype to the observed probabilities. Are the gene for fruit colour and the gene for fruit shape assorting independently? Explain.

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