Pon Farr 2025

 

VULCANS are a logical species where emotions play no role in producing offspring.  All offspring are the result of in vitro fertilization. They form no attachments with their mates. Unfortunately Vulcan was destroyed by a Romulan enemy.  All Vulcans must now do their duty by helping to repopulate their species. 

Purpose:  To find some vulcans in our very own Starfleet Academy (teachers from our school) and interview them.  Record their phenotypes and write their genotypes, revealed by the interviews and bios. 

In the class ,  calculate the probability of certain traits using a punnet

Square.  

 Create test crosses where the vulcans make  4 kids per PAIR    of Vulcans.

Keep track of the genotype of each kid.  By the end of the activity, there will be 16 kids. 

Method:

these are the  Genotypes for the following traits:

Dominant trait                            recessive trait

Earlobe attachment EE, or Ee.    unattached  ee

Tongue rolling TT or Tt              no tongue rolling tt

Cleft chin   CC or Cc                  no cleft cc

Widow’s peak WW or Ww.          straight hairline ww                    

Natural curl. NN.         straight hair nn.          wavy Nn       

Dimples DD or Dd            no dimples. dd

Righty RR   or Rr.          lefty rr

Freckles FF  or Ff           no freckles ff

Blood type.  AA  or Ao 

                    BB or Bo

                    AB 

                    oo 

internal ovaries  XX       internal testes XY.  

 

(NOTE THAT internal organs do NOT determine Gender identity)

METHOD 

1.  Find VULCANS in our school and write down their phenotype for each trait. If they have the DOMINANT TRAIT like Freckles, you can assign them a genotype to determine whether they are Ff or FF 

a. person 1 Phenotypes:

    person 1 Genotypes

b. person 2 Phenotype

    person 2 Genotypes

c.  person 3 Phenotype

     person 3 genotypes

etc

    

For each mate you have draw the punnet squares  representing

 each trait and

calculate the Probability of each trait and show your punnet square.

C  CREATE TEST CROSSES TO GENERATE 4 OFFSPRING FOR 4 PAIRS OF VULCAN PARENTS.

DRAW THEIR HYPOTHETICAL OFFSPRING 

EXAMPLE:

Dd is DENNIS

dd is Pocky

We want to know what happens when DENNIS mates with Pocky:

step 1:

make DENNIS's allele cards

D card and d card =Dd

make Pocky's allele cards

D card and d card = dd

step 2

To make an offspring, place the  DENNIS D and d card face down and randomly choose one. 

place the Pocky cards face down and randomly choose one. 

step 3: What offspring did you get?  DRAW A PICTURE OF THEIR OFFSPRING 

WRITE A REPORT ON PON FARR ACCORDING TO YOUR TEAMS ASSIGNMENT