does one DNA molecule = one chromosome?

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pauljohn
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does one DNA molecule = one chromosome?

Post by pauljohn » Wed Feb 04, 2009 1:06 pm

or does one DNA molecule = all the chromosomes, ie, all the genetic material in our cells?

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biohazard
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Post by biohazard » Wed Feb 04, 2009 1:31 pm

N+1 chromosomes = N+1 DNA molecules

One DNA molecule = one chromosome, unless of course you have spliced your DNA to two or more parts, after which you have many DNA molecules, but no chromosomes :)

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Post by miloshic » Thu Feb 12, 2009 9:01 am

At first, there is one DNA molecule and one chromosome, but after replication, the number of chromosomes stays unchanged, while the number of chromatides and of DNA molecules gets doubled, so you have one chromosome and two DNA molecules.

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