Calculate the number of times the DNA of a modern E. coli cell has been copied accurately since its earliest bacterial precursor cell arose about 3.5 billion years ago. Assume for simplicity that over this time period, E. coli has undergone, on average, one cell division every 12 hours (this is an overestimate for modern bacteria, but probably an underestimate for ancient bacteria).

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#Question id: 6982

#I Life Science/ Life Sciences Group – I-V

Which of the following genes control the final structures of appendages from each segment?

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#Question id: 9225

#SCPH28 | Zoology

Use the following figure to answer the question

In looking at the species-area plot in the figure, what can be concluded?

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#Question id: 17662

#SCPH05 I Biotechnology

BLOCKS refers to 

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#Question id: 10702

#SCPH28 | Zoology

Species A has a large effect on community because of its abundance in community known as

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#Question id: 19137

#SCPH01 Biochemistry

Which of the following statement is correct about PAM.