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Jessi Courtright

Punnett Square practice

Grades: 10th Grade, 7th Grade, 9th Grade
Subjects: Math, Science, Health

Student Instructions

Be sure to complete all 10 Punnett squares! On the right side of the activity you'll see different pages. Make sure all of them are done before clicking the green check mark to submit- you don't turn in after each page. 1) Place the letters in the boxes going top to bottom 2) Place the letters in the boxes going left to right 3) Use a different (lighter) color to shade in the boxes that are going to have the trait expressed- which have a capital letter at all (either homogeneous with both capital letters, or heterogeneous with just 1 capital- either way the trait will be expressed) 4) Write a text label label to show what the probability is for the trait to be expressed. For example, if 3/4 boxes are shaded, then there is a 75% chance the trait will be passed on.