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 02:00
The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.
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Biology, 22.06.2019 04:00
As studied this week in the cell cycle, we saw how a cell moves through its life with a plan. as you transition from a student at uma to a valued member of your chosen career field, what will you put into place in your life to manage and to fit the new responsibilities of your career into your current life?
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Biology, 22.06.2019 15:00
Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
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Biology, 22.06.2019 17:00
What would be he the strand of complementary dna produced be the strand of dna shown below> tcg aag
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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