To determine the missing genotype, we need to first set up the Punnett Square:
Father's genotype: Tt
Mother's genotype: Tt
Punnett Square:
| T | t |
-----------------------
T | TT | Tt |
-----------------------
t | Tt | tt |
The missing genotype could be either TT, Tt, or tt.
To determine the probability of the dominant genotype (TT or Tt), we look at the Punnett Square. In this case, there are 3 out of 4 possible outcomes that result in the dominant genotype (TT or Tt), so the probability is 3/4 or 75%.
Punnett Squares are diagrams, or tools, that are used to predict the genotypes of a particular cross or breeding experiment.
Question 12: In monsters, the gene for pointy teeth has two alleles with one coming from the mother and the other coming from the father.
The dominant allele (T) codes for pointy teeth and the recessive allele (t) codes for round teeth.
First: Use the Punnett Square of the two monster parents below to determine the missing genotype of what variation of teeth their monster offspring could have. Your task is to fill in the correct genotype combination in the quadrant of the Punnett Square using the dropdowns.
Question 1
(2 points)
Select responses from the drop down fields to answer the question. Navigate to the desired drop down and select your response.
Question 2
Next: Determine the probability of the dominant genotype.
1 answer