Download Basic Review of Punnett Square

PROBABILITY OF INHERITANCE – CONSTRUCTING AND
USING PUNNETT SQUARES
Individually or with a partner, log onto a Chromebook or regular laptop. You will be
working through small exercises that will teach you how to predict offspring traits from
reproduction of organisms involving recessive and dominant traits. These exercises will
utilize a tool we call the Punnett Square, and will deal with simple math probability.
Call up the following address:
http://anthro.palomar.edu/mendel/mendel_2.htm
Once on this site, begin reading through the information on setting up a Punnett Square.
Click on any of the highlighted words that you need additional vocabulary help on.
Many of these words are on your Genetic Vocabulary Packet that was handed to you at
the beginning of class.
After you have read through the website, answer the following questions on this sheet:
1. How do math principles of probability, ratios, and fractions relate to the use of the
Punnett Square in genetics?
2. What are some of the valuable uses of the Punnett Square in the world of
genetics?
*When you have answered the two questions above, take the “Practice Quiz”
covering basic Punnett Square principles by clicking on the link at the bottom of
the webpage that you just researched. Record your score on this sheet, and any
problems that you get wrong, write down the correct answer and why it is the
correct answer on the back of this sheet.