Answer to Question #244754 in Genetics for Tumzaza

Question #244754

In peas, a gene for tall plants (T) is dominant over its allele for short plants (t). The gene for smooth peas (S) is dominant over its allele for wrinkled peas (s). The genes are not linked. Determine both phenotypic and genotypic ratios for the results of each of the following crosses:

3.1. heterozygous tall heterozygous smooth x heterozygous tall heterozygous smooth.                                                             


1
Expert's answer
2021-10-01T05:11:01-0400

The possible phenotypes are: tall and smooth, tall and wrinkled, short and smooth, short and wrinkled


TtSs and ttss parentals


TtSss x TtSs




Gamety Ts/Ts/ts/ts X Ts/Ts/ts/ts











Phenotypic ratio -


9 : 3 : 3 : 1






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