MathBench > Probability

Linked Genes and Recombination
Advanced Punnett

Another hybrid family

Mrs. Smiley Et/eT
Mr. Smiley Et/eT

Like I said, it's not always so easy. Here's a second family -- once again, both mom and dad are hybrids, and as such they are normal-looking. But the kids ...

smiley needlepoint Once again there are 3 genotypes, but they make 3 phenotypes: normal, rabbit-toothed, and bug-eyed, in a 2:1:1 ratio. In fact, for this couple, its impossible to get a double-weird kid, while for our first couple, it was impossible to get a single-weird kid.

The point, however, is not to memorize these outcomes, but to know how to predict them with the Punnett Square. So go back and practice that if you need to.