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.

Describe how you would set up a Punnett square for this cross.
List the likelihood of each possible offspring genotype.
List the likelihood of each possible offspring phenotype

Question

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. 

Describe how you would set up a Punnett square for this cross. 
List the likelihood of each possible offspring genotype. 
List the likelihood of each possible offspring phenotype

anonymous · Answer

well there are multiple ways to set up a dihybrid cross

do u know the common genotype and phenotype ratios for a dihybrid cross?that would make these questions 10 times easier

anonymous · Answer

no i dont

anonymous · Answer

Dihybrid ratios in F2 generation
Phenotypic - 9:3:3:1
Genotypic - 1:2:2:4:1:2:1:2:1

anonymous · Answer

those are the regular ratios that u should put to memory

anonymous · Answer

what are they for? i just started this class and never heard of Dihybrid cross

anonymous · Answer

well if u were to do the dihybrid cross by hand and list all the phenotypes and genotypes, u would come to the conclusion of the ratios that i just described. If u want u can just wiki it and I am sure they will explain it in detail

anonymous · Answer

okay ty

anonymous · Answer

np