6. Answer the following using numerical values: a. A double-stranded DNA molecule is 300,000 basepairs long....
6. Answer the following using numerical values:
a. A double-stranded DNA molecule is 300,000 basepairs long. This DNA molecule has how many complete helical turns? (Use a numerical answer, no words or units.)
b. A double-stranded DNA molecule is 300,000 basepairs long. How long is the DNA molecule in micrometers? (Use a numerical answer, no words or units.)
Homework Answers
A) Helical turns are found per 10 base pairs in ds DNA.
That's why 300,000/10=30,000 turns are found in this DNA.
Answer is 30,000
------
B) There ar found 3.4 angstrom distance between two base pair. In micrometer, there are found distance of 0.00034
The length of DNA molecule is 300,000×0.00034=102 micrometer.
Answer is 102
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