In science we are learning about genetics. Genetics are your traits. like what you look like. We are learning that you can be either homozygous or heterozygous . If you are homozygous is when you have two of one trait. If you are heterozygous tall, you have one tall chromosome and one short one. Lets say that Bob is       Heterozygous tall and Patty is herezygous tall. Will thier child be tall or short.
 This is were the Punnent squares come in. This is a type of square that is broken up into four parts. They mom's traits go on top and the dad's traits go on the sides. This will show the child's chances of being tall or short. You fill in the square The capital letter shows the tall genes and the lower case letter show the short gene. If you have two capital letters or just one you will be tall if you have two lower case letters you will be short. This child has a 75% chance of being tall and a 25% chance of being short. 



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