Punnet Squares

     Todays blog will be about Punnet squares, and what they are used for. First of all, a Punnet square is a chart that shows different possibilities for someone or something to look like. It lists all the possible genotypes for your child, or anything you want to see the outcomes of. Geneotypes, can be Bb, bb, or BB. A phenotype is your physical appearance  Now, if I did not well describe how Punnet squares look like, they look like a square with a vertical and horizontal line right in it. At the top and side of the Punnet square, you put the father's and mother's genotype of whatever it is that you want to see the possible outcomes of. For example,if the father's genotype for brown eyes would be Bb, you would put that at the top or side of the Punnet square. If the mother's genotype for blue eyes was bb, you would put that on the top or bottom of the Punnet square. Once you have figured out the two genotypes, you are ready to find out the possibility of the offspring. This is why people use punnet squares to find out how their offspring would look like.

This is it for todays blog. I hope that you have learned a couple of things or two about this science lesson. If you really pay attention to punnet squares, you start to get the hang of it. Punnet squares are really just a chart showing all the possible genotypes for the offspring. To help you out a little bit more, just remember these  vocabulary words: phenotype means your physical appearance  genotype is the letter of your appearance  and a punnet square is just a chart listing all of the possible genotypes for that particular thing. This is what we are currently learning in Mrs. Poole's science class.