Chapter 9 (Problem 21) In Figure 9.7, which is the leading strand and which is t

Question

Chapter 9 (Problem 21) In Figure 9.7, which is the leading strand and which is the lagging strand?

PLease explain, thanks.

A. Top red strand is leading and bottom red strand is lagging. B. Top red stand is lagging and bottom red strand is leading. C. Both red strands are leading. D. Both red strands are lagging. E. Not enough information is provided to determine leading and lagging strands. 3..DNA synthesis proceeds from right to left on one strand... Template exposed Direction of synthesis 1 Because two template strands are antiparallel. and DNA synthesis is always 5' 3', Replication fork Direction of synthesis Unwinding Template exposed 4...and from left to right on the other strand. Figure 9.7 Genetics Essentiols Concepts and Connections, Thied Edition © 2016 Macmillan Education

Explanation / Answer

A.When replication begins, the two parent DNA strandsare separated. One of these is called the leading strand, and it is replicated continuously in the 3' to 5' direction. The other strand is the lagging strand, and it is replicated discontinuously in short sections.

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