Question

Complete this Punnett Square. Imagine Brown Eyes (T) are dominant to blue eyes (t).


T
t
T




T






What is the percent chance (probability) of genotype TT?


What is the percent chance (probability) of genotype Tt?


What is the percent chance (probability) of genotype tt?


What is the probability of the phenotype of brown eyes?


What is the probability of the phenotype of blue eyes?

Answer 1

Complete this Punnett Square. Imagine Brown Eyes (T) are dominant to blue eyes (t).


T:
T:

Answer 2

The Punnett Square can be completed as follows:

T t
T TT Tt
t Tt tt

- The percent chance (probability) of genotype TT is 25% (1 out of 4).
- The percent chance (probability) of genotype Tt is 50% (2 out of 4).
- The percent chance (probability) of genotype tt is 25% (1 out of 4).
- The probability of the phenotype of brown eyes (TT or Tt) is 75% (3 out of 4).
- The probability of the phenotype of blue eyes (tt) is 25% (1 out of 4).

Answer 3

The Punnett Square can be completed as follows:

T t
T TT Tt
T TT Tt

- The percent chance (probability) of genotype TT is 50% (2 out of 4).
- The percent chance (probability) of genotype Tt is 50% (2 out of 4).
- The percent chance (probability) of genotype tt is 0% (0 out of 4).
- The probability of the phenotype of brown eyes is 100% (4 out of 4).
- The probability of the phenotype of blue eyes is 0% (0 out of 4).