Mating Lab:
Purpose: To have hypothetical offspring with at least 4 other individuals
In the class and calculate the probability of certain traits using a punnet
Square. Next, you will perform a Vulcan mating ritual (pon farr) where
you randomly pick an allele from the other person and they randomly pick
one of your alleles. Then observe the traits of your offspring. Have 4 kids per mate
Keep track of the genotype of each kid. By the end of the activity, you will have 16 kids
Method:
Write down your phenotype for the following characteristics:
Earlobe attachment or unattached E e
Tongue rolling or not T t
Cleft chin or smooth chin. C c
Widow’s peak or not W w
Natural curl or straight hair N n
Dimples or not D d
Righty or Lefty R r
Freckles or not F f
Girl XX or boy XY
For each trait, make the genotype as alleles on two small pieces of paper.
Write your phenotypes now:
For each mate you have draw nine punnet squares representing
each trait and
calculate the Probability of each trait.
Mate 1’s genotype:_Ff WW tt nn rr dd cc Ee__XX_________________
Punnet squares: indicate probability
choose two characteristics to demonstrate a dihybrid cross
Actual genotypes of the offspring. Draw a cartoon of your kids. Name them
Offspring :
1.ff Ww Tt Dd Cc EE rr
2.
3.
