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Title: Compare the expected probabilities of each phenotype to the observed probabilities. Are the gene for Post by: billyray on Jun 17, 2019 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 Complete a Punnett square to determine the expected testcross progeny on the basis of Mendel’s Law of Independent Assortment. 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 Title: Re: Compare the expected probabilities of each phenotype to the observed probabilities. Are the gene ... Post by: bio_man on Jun 17, 2019 When you cross FFRR with ffrr, you'll get an F1 generation that's completely FfRr > Round and Red.
Crossing FfRr with ffrr should give you theoretically 1/4 - FfRr 1/4 - Ffrr 1/4 - ffRr 1/4 - ffrr |