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  • 4 years ago

In some bees, thin stripes (S) are dominant over thick stripes (s), and black eyes (B) are dominant over gray eyes (b). Complete a dihybrid cross for parents with the genotypes: SsBB × ssBb and answer the following in complete sentences. A. Describe how you would set up a Punnett square for this cross. B. List the likelihood of each possible offspring genotype. C. List the likelihood of each possible offspring phenotype.

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  1. blues
    • 4 years ago
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    Assuming the different alleles are on different chromosomes (the problem doesn't actually say so) then the possibilities arising for the first parent are SB, Sb, sB and sb. The possibilities arising for the second parent are sB, sb, sB (a second time) and sb. Is that enough to get you started?

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