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:
Number of Offspring
Red and round
Red and oval
Yellow and round
Yellow and oval
Use a Punnett square to determine the expected testcross progeny on the basis of Mendel's Law of Independent Assortment.
a.Record the phenotypes and the phenotype ratio in lowest terms.
The cross phenotypic ratio is 4:4:4:4. The... View the full answer
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The phenotypic ratio of the progenies obtained in F2 generation is 4:4:4:4 i.e. 1:1:1:1... View the full answer