MathBench > Probability

Recombination

Punnett Square Redux

In an earlier module (Punnett's Mice), we talked about Punnett Squares and how they can represent genetic crosses. In this module, we're going to use Punnett Squares again to talk about more complex kinds of crosses. Therefore, we'll start this module with a quick review. See if you can remember or reason out the answers to the questions below:

Fill in the blanks

click "?" for hints    key:wrong answer, right answer

A punnett square for a cross involving only 1 gene has columns and rows.

A punnett square for a cross involving 2 genes has columns and rows.

If the mother's genotype is AaBb,then the first column headings is .

If the mother's genotype is aaBb, then the first column headings is .

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