Suppose you have a gene S that acts as a suppressor. The presence of an S allele would suppress the expression of the dominant allele at R. A dihybrid cross would result in a phenotypic ratio of 13:3. Which genotypes would be included as part of the 3/16 in this ratio?

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Rrss and RRss

  

RRSs and rrSs

  

RrSs and RRSs

  

rrss and Rrss

 

asked May 5, 2013 in Genetics by GeneX ~Top Expert~ (7,947 points)
    

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Rrss and RRss

answered May 5, 2013 by GeneX ~Top Expert~ (7,947 points)

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