Class: Biology

Students: 9^th & 10^th graders

Duration: 10 minutes

Topic: Genetics

Objective:

SWBAT compare and contrast genotype and phenotype.

SWBAT explain the Mendelian principal of independent assortment.

SWBAT demonstrate that recombination of gametes (coins) will result in the formation of unique individuals.

Materials:

SMART board, PowerPoint presentation, white board, white erase board markers, 20 coins, white paper, colors

Anticipation:

Question*

Genotype v. Phenotype

Independent Assortment

Create-a-Child**

Thinking Ahead

Motivation: (1 min.)

Can you think of instances in your family or a friend’s family where the offspring look very different from the parents?

Input: (3 min.)

Discuss genotype v. phenotype. Discuss independent assortment.   (Use the power point slide show.)

Activity: (guided practice 2 min. & unguided 3 min.)

Have the students chose one partner with whom to "create-a-child". Display one of the traits from the genotype/phenotype guide on the SMART board and as a class go through the steps of determining genotype and phenotype for that trait. After the students establish the genotype of their individual children, have the students transform the genotype into their child’s phenotype on supplied white paper.

Assignment:

Complete the drawing of your child. Turn in a copy of the genotype and phenotype along with the drawing.

Rubric: group work 10

            genotype 10

            phenotype 10

            TOTAL 30

Sharing: (1 min.)

Have one group share their "child" with the class. All groups will share their completed "child" with the class tomorrow.

Evaluation:

Find out if the students enjoyed the lesson. Grade the created children.

Adapted from: http://www.kumc.edu/gec/lpbennet.html

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