Your best course is to read a genetics textbook. Once you get a grounding, you can apply the same principles to boa constrictors. If your public library can't get you something, then go to Elrod and Stansfield's book, Schaum's Introduction to Genetics. The fourth edition (paperback, used) costs less than $10 on the web. It isn't perfect, but it's the best bang for the buck that I know of. Good luck.

Paul Hollander

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