2006-07-16 11:41:42 · 13 answers · asked by Diego U 1 in Science & Mathematics ➔ Biology
It's a double-helix spiral. It is basically like if you took a ladder and twisted it around.
2006-07-16 11:44:48 · answer #1 · answered by I Know Nuttin 5 · 0⤊ 0⤋
To start with DNA is a double helix, although there is also three stranded DNA.
The double helix could be circular (the two ends joined) like bacterial, some viral chromosomes and plasmids, or linear like in eukaryotes.
It can be supercoiled-imagine the cord of your telephone as the double helix, with its spiral winding corresponding to the winding of the double helix, and twist it again.
If proteins are also involved then you can have even higher organization of the DNA.
You can have different types of helical geometries (A,B and Z DNA) with B-DNA being thought to be predominant in cells.
2006-07-17 05:55:29 · answer #2 · answered by bellerophon 6 · 0⤊ 0⤋
The shape of DNA is a double helix.
2006-07-16 18:44:57 · answer #3 · answered by Brandi B 2 · 1⤊ 0⤋
Spriral Ladder
2006-07-16 18:44:50 · answer #4 · answered by an_eagles_eyes 2 · 1⤊ 0⤋
well, it's in the form of a double helix with bases running parallel & attached between the 2 strands... this double helix go loose & bexome 2 strands during replication.. then go back again together during the process of crossing over... hope i've helped !
2006-07-16 18:46:25 · answer #5 · answered by Anonymous · 1⤊ 0⤋
Double Helix,it un-zips like a zipper when replicating.
2006-07-16 21:42:51 · answer #6 · answered by Anonymous · 1⤊ 0⤋
a double helix.
it looks like a twisted ladder
2006-07-16 18:45:19 · answer #7 · answered by at a snail's pace 4 · 1⤊ 0⤋
A double helix.
And that is basically two sprials wound round each other.
2006-07-16 18:44:52 · answer #8 · answered by P. M 5 · 1⤊ 0⤋
double helix
2006-07-16 18:44:39 · answer #9 · answered by nice_one 1 · 1⤊ 0⤋
http://en.wikipedia.org/wiki/DNA
2006-07-16 18:45:42 · answer #10 · answered by Gray Matter 5 · 1⤊ 0⤋