# Introduction

In
the module on probability,
we talked about Laws of Probability that can be applied to, well, just about
anything ... rolling dice or determining the probability of survival, or playing
the stock market, or genetics, to name a few. In this module, we're going
to talk about **another approach to probability**, which is much more specific
to genetics, called Punnett Squares. Punnett Squares were invented by one
Reginald Punnett, a British geneticist who also studied ribbon worms and played
cricket with G. H. Hardy of Hardy-Weinberg fame, one of the true big cheeses
in the genetics world.

In this module, you'll see how **Punnett Squares are really just a graphical
way of reproducing the basic rules of probability. **

You'll also see how to predict the phenotypic outcome from a multi-loci genotypic
cross - **in other words, how to predict what the kids will look like.**

Clipart for this module thanks to Arthur's Clipart, FreeImages.co.uk, Clipart Heaven

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