Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 18 - Genomics - Review Questions - Apply: 7

Answer

A.

Work Step by Step

Posttranslational modification can add things other than amino acids to a protein (A.) and so could add mass without affecting sequence. In contrast, B. and D. would alter the sequence of the protein, contrary to what the question says, and C. involves another protein, which the question does not mention.
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