Suppose that E. coli synthesizes DNA at a rate of 100,000 nucleotides per minute and takes 40 minutes to replicate its chromosome. (a) How many base pairs are present in the entire E. coli chromosome? (b) What is the physical length of the chromosome in its helical configuration—that is, what is the circumference of the chromosome if it were opened into a circle?

Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Christine Evers, Lisa Starr
Chapter10: Biotechnology
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Suppose that E. coli synthesizes DNA at a rate of 100,000 nucleotides
per minute and takes 40 minutes to replicate its chromosome.
(a) How many base pairs are present in the entire E. coli
chromosome? (b) What is the physical length of the chromosome
in its helical configuration—that is, what is the circumference of
the chromosome if it were opened into a circle?

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