Download Hardy-Weinberg Activity - Milton

Hardy-Weinberg Activity
1. Divide into partners.
2. Select one person to obtain the following materials:
Two colors of Skittles (use gloves)
Cup (filled halfway with skittles)
3. Count your skittles to make sure that there is an even number. This is
your gene pool.
4. Assign one color to be dominant and one to be recessive. Count each
color.
5. Find the frequencies of each color.
# dominant
total #
6. Make a chart on your own paper.
Number
Frequency
BB
Bb
# recessive
total #
bb
7. Take random pairs to simulate children of the next generation. Tally
these pairs on your chart.
8. Find p and q by counting the dominant and recessive genes a second time
and dividing them by the total number of skittles.
9. Is this population in Hardy-Weinberg equilibrium? Explain.
10. Repeat the simulation over many generations using the chart below. Use
your previous data for the “original” population.
BB
Bb
bb
p
q
Original Population
Generation 1
Generation 2
Generation 3
Generation 4
Generation 5
This time, a homozygous recessive individual dies. Their genes are
eliminated from the gene pool.
11. Is your population in Hardy-Weinberg Equilibrium? Explain.