Campbell Biology (10th Edition)

Published by Pearson
ISBN 10: 0321775651
ISBN 13: 978-0-32177-565-8

Chapter 23 - 23.2 - Concept Check: 2

Answer

Approximately 0.30 for AA, 0.50 for Aa, and 0.20 for aa.

Work Step by Step

Since a=0.45, A=0.55 since A+a=1. Then, for AA, multiply 0.55x0.55, and for aa, 0.45x0.45. For Aa, see the text on Hardy Weinberg to see that there should be 2Aa=2x0.45x0.55. As a check, AA+2Aa+aa=1, which is true with these answers given.
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