Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 13 - Test Your Understanding - Level 3 - Synthesis/Evaluation - Page 268: 8


An unfavorable environment shows that existing genetic combinations may no longer be successful. The increased diversity generated by meiosis/recombination available to sexually reproducing organisms and would be a selective advantage to them during evolution as it creates the opportunity for more successful genetic combinations to emerge.

Work Step by Step

The key here is to see that a changing or changeable environment provides stresses which could be met by some genetic combinations generated by meiosis-- this is why sexual evolution evolved and provides an advantage today in some situations.
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