Biology, 28.06.2019 08:20, jaylenmiller437
The genetic material of the escherichia coli cell with a diameter of about 1 μm and a length of about 2 μm, consists of a dna molecule with a diameter of 2 nm and a total length of 1.36 mm. (the molecule is actually circular, with a circumference of 1.36 mm.) to be accommodated in a cell that is only a few micrometers long, this large dna molecule is tightly coiled and folded into a nucleoid that occupies a small proportion of the cell's internal volume. calculate the smallest possible volume the dna molecule could fit into, and express it as a percentage of the internal volume of the cylindrical bacterial cell with a diameter of about 1 μm and a length of about 2 μm. recall that v=pr2h for a cylinder.
Answers: 1
Biology, 22.06.2019 07:00, Bengynease2598
An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?
Answers: 3
Biology, 22.06.2019 13:00, traphard979
Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?
Answers: 1
The genetic material of the escherichia coli cell with a diameter of about 1 μm and a length of abou...
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