Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 23.2, Problem 1R
Summary Introduction
To review:
The mechanism to analyze whether the opsin gene in eyeless crayfish was inherited from an eyed ancestor and then lost its function or it has a new function other than vision.
Introduction:
Crayfish species that live as surface dwellers have functional eyes, while those that live in underground caves have lost their vision. However, both the species show expression of the opsin gene, which plays an important role in vision.
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Life: The Science of Biology
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