Question

In one type of plant, orange petals (O) are dominant over yellow petals (o) and tall stems (T) are dominant over short stems (t). Complete a dihybrid cross for parents with the genotypes: OOTt × OoTt 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 1

Do you know how to make a Punnett square? It looks like this : http://passel.unl.edu/Image/siteImages/PunnettSquarePlainLG.gif
You can draw one and predict outcomes with the different genes.