Variations On A Human Face Lab printable pdf download

Variations On A Human Face Lab

Variations on a Human Face Lab

Introduction:

Have you ever wondered why everybody has a different appearance even if they are closely

related? It is because of the large variety or characteristics that exist in the human population.

This lab will demonstrate this concept. You are to be parent and you are going to make a baby.

What would your baby look like if you and your partner spouse both typically have one dominant

and one recessive gene for each of the following features of the face?

Objective:

The student will determine the appearance of their child’s face. By flipping coins the student will

determine the bits of information that will contribute to the complete appearance of the child’s

face.

Materials:

2 coins (pennies)

2 students

Handout of the Traits

White paper

Colors – Pencils, crayons, or markers

Procedure:

1. First determine which partner will toss for the male and which will toss for the

female. Each of you will get a penny. (You will have the opportunity to make

2 children you will pick which one you would like to draw)

2. Have the partner who is representing the male flip the coin, if the coin lands

heads up, the offspring is female, if tails, the offspring is male. What is the sex

of your offspring?______

3. For all coin tosses from now on. Heads will represent the dominant allele and tails will

represent the recessive allele. For each trait on the chart you will flip a coin to determine

what GENOTYPE your offspring will have. Write the allele that mom and dad both give in the

correct area of the chart and the genotype of the child next to each trait given.

4. Complete the traits in the chart first. Then complete the

polygenic traits.

Variations On A Human Face Lab