A pure culture in exponential growth phase has a bacterial concentration of 6.4 x 10^8 cells/ml. If the bacterium has a generation time of 1 h, how long ago was the cell concentration 8.0 x 10^7 cells/ml?

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#Question id: 3789

#XL - Q Biochemistry

What do telomeres do?

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#Question id: 3790

#XL - Q Biochemistry

Semiconservative replication of DNA means that:

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#Question id: 3791

#XL - Q Biochemistry

 In vitro systems used to study replication must include all of the following except:

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#Question id: 3792

#XL - Q Biochemistry

Strain introduced by unwinding DNA at the replication forks is relieved by

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#Question id: 3793

#XL - Q Biochemistry

A replicating prokaryotic chromosome has _________ replication forks, and a replicating eukaryotic chromosome has ___________.

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#Question id: 3794

#XL - Q Biochemistry

An input of energy is not required for which of the following steps of replication?