If a length of DNA has 45,000 base pairs, how many complete turns will the DNA molecule takes?
a)
4,500
b)
45,000
c)
45
d)
450
If a length of DNA has 45,000 base pairs, how many complete turns will the DNA molecule takes?
a)
4,500
b)
45,000
c)
45
d)
450
Question ID - 2763 | SaraNextGen Top Answer
If a length of DNA has 45,000 base pairs, how many complete turns will the DNA molecule takes?
a)
4,500
b)
45,000
c)
45
d)
450
|
If a length of DNA has 45,000 base pairs, how many complete turns will the DNA molecule takes? |
|||||||
|
a) |
4,500 |
b) |
45,000 |
c) |
45 |
d) |
450 |
1 Answer
127 votes
Answer Key / Explanation : (a) -
|
(a) According to Watson and Crick’s DNA model, DNA exists as double helix in which two polynucleotide chains are coiled about one another in a spiral way (a right handed spiral). The base pairs in DNA are stacked 3.4Å apart with 10 base pairs in a turn (360 |
) on the double helix. Therefore, if the length of DNA has 45,000 base pairs, DNA molecule will take 4,500 complete turns.127 votes
Answer Link
127