In Punnett Squares What Do the Letters Represent?

What do the letters inside the Punnett Square represent? They represent the possible genotypes for their offspring.

Do the letters matter in a Punnett Square?

Building A Punnett Square

We pick a parent—it doesn't matter which one—and write its alleles on the top of the square. ... While drawing this, we have to be careful with the dominant and recessive alleles. Capital letters are typically used for the dominant trait, while lowercase letters are used for recessive traits.

What do the letters on the outside of the Punnett Square best represent?

Explanation: The ones on the outside represent the genes from the parents. The one on the inside of the box represent the possible combination of genes for the offspring. Capital letters represent Dominant Genes (R).