2.0X 1.5 X 1.0X -G2 Cytokinesis Mitosis Cell cycle Relative amount of DNA

Anatomy & Physiology
1st Edition
ISBN:9781938168130
Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Chapter3: The Cellular Level Of Organization
Section: Chapter Questions
Problem 24RQ: Which of the following phases is characterized by preparation for DNA synthesis? G0 G1 G2 S
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A scientist collects cells at various points in the cell cycle and isolates
DNA from them. Using density-gradient centrifugation, she separates
the nuclear DNA and mtDNA. She then measures the amounts of
mtDNA and nuclear DNA present at different points in the cell cycle.
On the following graph, draw a line to represent the relative amounts of
nuclear DNA that you expect her to find per cell throughout the cell
cycle. Then, draw a dotted line on the same graph to indicate the relative
amounts of mtDNA that you would expect to see at different points
throughout the cell cycle. 

2.0X
1.5 X
1.0X
-G2
Cytokinesis
Mitosis
Cell cycle
Relative amount of DNA
Transcribed Image Text:2.0X 1.5 X 1.0X -G2 Cytokinesis Mitosis Cell cycle Relative amount of DNA
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