Sunday, September 18, 2011

What is the F1 genotypic and F1 phenotypic ratio?

A purebred short tail mouse is crosses with a hybrid short tail mouse.





I did the punnett square but I don't know how to get the F1 genotype or phenotype. Can someone please show me how to get that answer?|||Ss (The hybrid mouse) crossed with SS (The pure-bred mouse) yields -%26gt; [SS] [Ss] [SS] [Ss] (Results of punnet square)





F1 GENOTYPE= SS and Ss (Assuming that short tail is dominant, the S should be large.) This answer is determined by the results of the punnet square.








Remember that Genotype refers to the actual genes it possesses. Phenotype is just the genes that you know they have simply from observing their physical body.





F1 PHENOTYPE= Short tail. (Assuming that the short tail is dominant.) This answer is determined by analyzing the punnet square and figuring out what the mouse will look like.|||3/1

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