Question

Hereditary Patterns

Answer 1

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.

Answer 2

Here's the dihybrid cross for the two parent traits. The capital letters are the dominant ones, so remember to write those before the recessive traits, or the lower case letters. To do this chart, just pair each S or s with one B or b.