Question

Paul Plutonian and Penelope Phobos also met online. Both of them are

heterozygous for their tall head, which is dominant over a short head.
Create a Punnett Square to show the possibilities that would result if Paul
and Penelope had children. (Hint: Read question 5.)
A. List the possible genotypes and phenotypes for their children.
B. What are the chances of a child with a tall head?
C. What are the chances of a child with a short head?

Answer 1

A. HH - tall head, Hh - tall head, hh - short head

B. 75% or 3/4

C. 25% or 1/4

Step-by-step explanation:

Paul and Penelope are heterozygous for their tall head, which means they have one dominant and one recessive allele. So, their genotype is Hh.

When crossed, the results are 1 HH - h0m0zygous dominant tall head, 2 Hh - heterozygous tall head, and 1 hh - h0m0zygous recessive short head.

So, there is a 75% of a child with a tall head and a 25% chance of a child with a short head.

Hope that helps.