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 have wild-type appearances. But the kids ...
Once again there are 3 genotypes, but they make 3 phenotypes: wild-type, rabbit-toothed, and bug-eyed, in a 2:1:1 ratio. In fact, for this couple, it's impossible to get a double-variant kid, while for our first couple, it was impossible to get a single-variant 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.
Copyright University of Maryland, 2007
You may link to this site for educational purposes.
Please do not copy without permission
requests/questions/feedback email: mathbench@umd.edu