Name:_____________________________________________

Paper Pets

The Paper Pet (species Papyrus domesticus) has four distinct traits as shown below

Eyes:

eyes

RR or Rr = square
rr = round

Nose
nose

NN or Nn = triangular
nn = oval

Teeth

teeth

TT or Tt = pointed
tt = square

Hair
hair

HH = 1 hair
Hh = 3 hairs
hh = 2 hairs

The Parents' Genotypes

parents

Show how you would use a punnett square to determine the offspring's appearance:

1. Rr x rr 2. Nn x nn 3. Tt x Tt 4. HH x hh

 

 

New Parents

What if both parents were heterozygous for all traits: RrNnTtHh x RrNnTtHh

Draw the parents

Momhead Dad head

 

Making Your Offspring

Now your parents will mate to create four offspring. To simulate mating, flip a penny. Heads represents a dominant allele and tales is recessive. Example, for the first baby, you flip heads and then tails, that means the first set of genes is Rr. This baby has square eyes. Repeat the toss for nose, teeth and hair. Draw your four offsping.

headheadheadhead

Genotypes: