13. dihybrid cross
red allele
r = white allele
what is the percentage chance of having an
offspring that is red and tall?
t = tall allele
t = short allele

There is 56 percent chance that the offspring will be red and tall

Explanation:

A punnet square can be described as a diagram which is used to check the outcomes of a cross.  A monohybrid cross is a cross in which a single trait is studied. A dihybrid cross is a cross in which two traits are studied and the results of an offspring having two traits are predicted.

As we see, red is dominant over white and tall is dominant over short, the results of the punnet square show that there is a 56% chance for red and tall offsprings.

9 divided by 16 and multiplied by 100 gives 56.2.