Campbell Biology (11th Edition)

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

Chapter 16 - 16.2 - Concept Check - Page 329: 4


A non-functional DNA Pol I would leave the leading strand in pieces, though larger ones than the lagging strand. This is because it could not remove RNA primer, allowing the complete strand to be chemically stitched together. In the box in Fig. 16.17, DNA Pol I normally acts wherever a red dash is present since that represents the RNA primer.

Work Step by Step

The key here is to review the description of DNA Pol I and to see its role graphically represented in Fig. 16.17. It normally helps clean up the RNA primers so new strands of DNA can be made into one continuous piece.
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