Though I’d love to help (genetics and algebra were two things I did excellently on in high school), I’m sure there are much more knowledgeable people willing to help, as well.
But good luck!
Oh, goodness… I tried the math problem. I got up to
2b[sup]2[/sup] + square root of 19 x b - 22 = 0
and I forgot where to go from there… One year out of math and I become a dunce.