Weirdmaskman Posted September 14, 2011 Posted September 14, 2011 (edited) What is the length of an uncoiled human DNA? Edited September 14, 2011 by Abiola mubarak mohammed
CharonY Posted September 14, 2011 Posted September 14, 2011 From which chromsome? A nucleotide within a helix occupies roughly 3.4 Å or 0.34 nm (am not 100% sure but should be easy to check). If we made a single molecule out of all chromosomes, the haploid genome (about 3 gigabases) would have roughly the length of 1m. This is assuming that it still maintains a helical structure. 1
Weirdmaskman Posted September 16, 2011 Author Posted September 16, 2011 From which chromsome? A nucleotide within a helix occupies roughly 3.4 Å or 0.34 nm (am not 100% sure but should be easy to check). If we made a single molecule out of all chromosomes, the haploid genome (about 3 gigabases) would have roughly the length of 1m. This is assuming that it still maintains a helical structure. "Thanks charonY" From which chromsome? "Getting confused, you mean the DNA in the body varies with specialized cell?" A nucleotide within a helix occupies roughly 3.4 Å or 0.34 nm (am not 100% sure but should be easy to check). If we made a single molecule out of all chromosomes, the haploid genome (about 3 gigabases) would have roughly the length of 1m. This is assuming that it still maintains a helical structure. "helical structure" what i'm trying to get is the length of the DNA uncoiled, unwined and stretch to the maximum length. Is this known? <not assuming it to be in helical structure>.
CharonY Posted September 23, 2011 Posted September 23, 2011 The haploid human genome has around 3 gigabases, but it is not a single molecule. Rather, it is distributed to 23 chromosomes.
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