Download Name________________________ per. ______ Frankenfish

Name_________________________ per. ________
Frankenfish: Create Your Own Creature
Objective(s): Students will learn the difference between a genotype and a phenotype. They
will demonstrate that recombination of gametes (coins) will result in the formation of unique
individuals.
Directions: Students flip a pair of coins to determine what genotype and what phenotype their
fish will have for 8 given traits. They will create a picture of their fish based on their coin flip
phenotypes. They will then create Punnett squares to determine what their offspring will look
like. See project details down below.
Materials:
 White paper
 Colored pencils, crayons, or markers
 2 coins (pennies)
 Copy of genotype and phenotype options
Directions:
1. For each of the 8 traits, you will flip 2 coins to determine (Heads=H and Tails=T) the
genotype and phenotype of your new fish species. HH= homozygous dominant, HT=
heterozygous, or TT= homozygous recessive. You should toss the coins for each
different trait that is listed, and record the genotype & phenotype of your fish on the
chart.
2. You will draw your fish’s phenotype on the white paper, which includes an environment
that is compatible with your fish’s adaptations.
3. Next, you will pair up with another student to produce offspring. You and your partner’s
fish will represent the parents. From the parent’s genotype, complete a genetic cross
(Punnett squares) for each trait to determine what your offspring might look like.
4. Determine the ratios of each possible outcome.
Frankenfish Project Details
Project Directions
1. Completed fish drawing (colored and with detail)
2. Completed your fish’s traits on the genotype/phenotype chart
3. Used Punnett Squares to determine the traits of your offspring
4. Included one genetically modified trait in your offspring
5. Included 1 drawings of offspring – 1 from each parent
6. Created an environment suitable for your fish’s adaptations
Score
______/10
______/5
______/10
______/5
______/5
______/5
Part 3: Making Fish Babies
Find a mate of the opposite sex to create a fish
family. This will ensure genetic diversity among
your fish species. Complete the Punnett Squares
to predict what traits would result from a cross
between your two fish. Write the genotype and
phenotype ratios
for body, tail, dorsal & pectoral fins, eye &
mouth traits. Draw one of your offspring on
the paper provided to you. Include 1 genetically
modified trait: sharp teeth, bioluminescence,
light appendage, etc.
Scale shape
Body shape
Genotype ratio ____________
Phenotype ratio____________
Tail Shape
Genotype ratio____________
Phenotype ratio___________
Dorsal Fin shape
Genotype ratio ___________
Phenotype ratio __________
Pectoral Fin shape
Genotype ratio____________
Phenotype ratio___________
Eye shape
Genotype ratio___________
Phenotype ratio__________
Mouth shape
Genotype ratio_____________
Phenotype ratio____________
Scale color