apparently if you unravelled it all and layed it out it would go the distance of earth to teh moon
There is one double helix DNA molecule per chromosome.
A chromosome is formed from a single DNA molecule.
There are two chromatids for each chromosome before the S-phase. The S-phase is wherein DNA of each chromosome is replicated.
Each human chromosome is typically replicated in multiple sections called replication origins. These origins are sites along the chromosome where the DNA double helix unwinds and new DNA strands are synthesized during DNA replication.
Each chromosome has a single strand of DNA.
every and any DNA strand can constitue to a chromosome :)
gene
Each chromosome is originally made of one DNA molecule.
At the end of S phase, each chromosome has two coiled DNA molecules, also known as sister chromatids. These sister chromatids are identical copies of each other formed during DNA replication in preparation for cell division.
Just before mitosis, a chromosome consists of two sister chromatids joined by a centromere. Each sister chromatid contains one DNA molecule. Therefore, there are two DNA molecules in a chromosome just before mitosis.
DNA DESTUCTION NAUTIOUS ACCESS
The second statement would be more correct.