Fruit Fly Genetics
Students will determine the phenotype and genotype of fruit fly crosses by constructing Punnett squares.

Where'd You Get Those Genes?
Students will manipulate Punnett squares to determine the patterns of dominant and recessive gene influence on first and second generations of humans and plants.

Outrageous Offspring
Using the Punnett Square helps students graphically display the outcomes of chance or probability.

Easter Egg Genetics
Get some packages of plastic Easter Eggs (the kind that split into halves to fill with candy-- they are only available at this time of year, regardless of when you plan to do the activity!!!) and some matching-colored gumballs, jelly beans, skittles, etc to fill them. Get enough so that every student gets one or, preferably, two eggs each. Make a genotype and phenotype chart (for them) and key (for you) to accompany them. For example: (these are common colors of eggs that may be purchased)- (the letters represent the color of HALF of the Easter egg)

Wearing My Genes:  Basic Principles of Heredity
An explanation of what heredity is, with student questions and responses.  The students, grouped in two's, will be given a drawing of a pair of jeans, on the pants pocket the students will find their sex chromosomes, either an XX=female or XY=male.  Students will be given an explanation of what the sex chromosomes are.  Students are then given a mirror, taking a look at themselves, the students explain what they see.  The students will see that everyone has different or similar traits that are passed from their parents.

Monohybrid Cross Problem Set
Short description and diagrams, tutorial for Punnett squares and probability

Punnett square Examples
Interactive, fun practice

Practicing Punnett Squares
More practice

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