57. You learn that a Mars lander has retrieved a bacterial sample from the polar ice caps You obtain a sample the Mars bacteria replicate their DNA. Based on the following equilibrium density gradient centrifugation of these bacteria and perform the same kind of experiment that Meselson and Stahl did to determine how results, what type of replication would you propose for these new bacteria? band position A) 28060 D) 8 88 before after 1st after 2nd after 3rd replication replication replication N₁ conservative semiconservative dispersive semiconservative or dispersive consery

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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57. You learn that a Mars lander has retrieved a bacterial sample from the polar ice caps. You obtain a sample
of these bacteria and perform the same kind of experiment that Meselson and Stahl did to determine how
the Mars bacteria replicate their DNA. Based on the following equilibrium density gradient centrifugation
results, what type of replication would you propose for these new bacteria?
band position
28060
8 8
before after 1st
N₁4
after 2nd
replication replication
A)
conservative
B) semiconservative
dispersive
C)
D) semiconservative or dispersive
E) conservative or dispersive
after 3rd
replication
Transcribed Image Text:57. You learn that a Mars lander has retrieved a bacterial sample from the polar ice caps. You obtain a sample of these bacteria and perform the same kind of experiment that Meselson and Stahl did to determine how the Mars bacteria replicate their DNA. Based on the following equilibrium density gradient centrifugation results, what type of replication would you propose for these new bacteria? band position 28060 8 8 before after 1st N₁4 after 2nd replication replication A) conservative B) semiconservative dispersive C) D) semiconservative or dispersive E) conservative or dispersive after 3rd replication
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