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SESAME STREETGENETICS ACTIVITY

Name ______________________

Partner’s Name ___________________________

Making the F1:

Step 1: Choose 2 sesame street characters from the next pages

to become your parent generation. Write their names on page 5 and assign an

XX to one and a XY to the other.

Step 2: Fill out a monster genetic profile for each of your parents (page 5)

using the Genetic key on page 4). If there are two genotype options for a

characteristic (e.g. five toes has FF and Ff) draw a number out of a hat (ie. 1 or

2) to determine what your monster’s genotype for that characteristic

Step 3: Use the parents’ genotypes and the Punnett squares on pages 5 & 6 to

determine possible monster baby genotypes.

Choosing your F1’s genotype: For each of your monster baby’s characteristics,

label the spaces in that Punnet square 1 through 4 and then randomly select

your monster baby’s genotype by drawing a number (1-4 from a hat). Record

this information in your monster baby profile on page 7.

Making the F2:

Step 4: Find another person with an opposite XX/XY F1 offspring

Step 5: Complete a monster profile of your F1 offspring’s spouse (page 7).

Step 6: Breed an F2 generation offspring and complete a monster baby profile

for your F2 generation (page 9) using the rules outlined in Step 3.

Step 7: Draw your F2 Offspring (page 10) and complete the follow-up

assignment (page 9).

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Characters

Elmo Telly

Zoe Grover

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Honker Cookie Monster

(Has 4 Fingers)

Rosita Oscar the Grouch

4

Work Booklet

GENETICS OF SESAME STREET CHARACTERS (Table 1.1)

Characteristic Phenotype Genotype Type of Inheritance

Eye Shape Exo (pops out) EE, Ee Dominant/recessive

Endo(flat) ee

Nose Color Pink PP Co-dominance

Orange ZZ

Yellow YY

No Nose NN

Body Color Red RR Incomplete dominance

Green RB

Blue RO

Magenta BO

Orange OO

Yellow BB

Head Hair Type Hairy XHX

HSex Linked

XHX

h

XHY

Bald XhY

XhX

h

Fingers 5 Fingers FF, Ff Dominant/Recessive

4 Fingers ff

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OBSERVATION OF GENETIC CHARACTERISTICS

Instructions:

Using key on page 4 fill in the genotypes and phenotypes tables below.

Monster Parent 1 Genetic Profile _________________ (Monster’s Name) XX or XY (circle 1)

Characteristic Genotype Phenotype Type of Inheritance

Eye shape

Nose Color

Body Color

Hair Type

Fingers

Monster Parent 2 Genetic Profile ________________ (Monster’s Name) XX or XY (circle 1)

Characteristic Genotype Phenotype Type of Inheritance

Eye shape

Nose Color

Body Color

Hair Type

Fingers

PUNNETT SQUARES for F1 Child

Eye Shape: ______ x ______ Nose: ______ x ________

Genotype Percentages: ________ Genotype Percentages: ________

Phenotype Percentages: ________ Phenotype Percentages: ________

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Body Colour: ______ x ______ Hair Type: ______ x ________

Genotype Percentages: ________ Genotype Percentages: __________

Phenotype Percentages: ________ Phenotype Percentages: _________

Fingers: ______ x ______

Genotype Percentages: __________

Phenotype Percentages: _________

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F1 Monster Baby’s (F1) genetic profile

_________________ (Monster’s Name) XX or XY (circle 1)

Characteristic Genotype Phenotype Type of Inheritance

Eye shape

Nose Color

Body Color

Hair Type

Fingers

Your monster baby’s (F1) spouse’s genetic profile

________________ (Monster’s Name) XX or XY (circle 1)

Characteristic Genotype Phenotype Type of Inheritance

Eye shape

Nose Color

Body Color

Hair Type

Fingers

PUNNETT SQUARES for F2 Child

Eye Shape: ______ x ______ Nose ______ x ________

Genotype Percentages: ________ Genotype Percentages: ________

Phenotype Percentages: ________ Phenotype Percentages: ________

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Body Colour: ______ x ______ Hair Type ______ x ________

Genotype Percentages: ________ Genotype Percentages: __________

Phenotype Percentages: ________ Phenotype Percentages: _________

Fingers: ______ x ______

Genotype Percentages: __________

Phenotype Percentages: _________

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F2 generation Monster baby genetic profile

_________________ (Monster’s Name) XX or XY (circle 1)

Characteristic Phenotype Genotype Type of Inheritance

Eye shape

Nose Color

Body Color

Hair Type

Fingers

Conclusion:

In 1 – 2 pages do an analysis of your results (explain why your F2 generation has the characteristics that it does). Make sure to answer the questions below within your analysis:

1. Define phenotype and genotype and give an example of each.

2. What is an allele? List the alleles the Sesame Street characters have for nose colour. Explain what kind of dominance these alleles display

3. In what circumstance will the phenotype match the genotype and when will it not match? (Use examples from the lab to help your answer). What is this type of inheritance called?

4. In this lab the body colour alleles showed a different phenotype pattern, what is this inheritance pattern called and explain how it works.

5. Is it more likely for a male or female offspring to be bald? What is this inheritance pattern called and explain how it works

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Draw and label your F2 generation monster baby

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