Describe DNA with diagram?
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Get hold of a book and learn it your self.
1043018
Here are a couple sites that might help. I could not find any diagrams though. Good luck!
62320
well, hope these help:\n\nhttp://www.bbc.co.uk/dna/h2g2/A388217\n\nhttp://www.chemistrysurvival.com/
348912
Here's one from Biodidac (great site for illustrations):\nhttp://biodidac.bio.uottawa.ca/Thumbnails/showimage.cfm?File_name=Aves065b&File_type=gif
1033247
Here's a great animation that helps explain it:  http://www.johnkyrk.com/DNAreplication.html
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Consider a regular climbing ladder.  If the ladder was sawed in half by sawing each rung crosscut thru the middle than each half of the ladder would represent one  DNA strand.  Each new organism receives a single strand from each of it's parents.  The two strands join to make the new organism's double stranded DNA.  The rail or sides of the ladder would represent the sugar and phosphate link backbone of the DNA.  The sawed rung would represent the nucleic acid bases.  The bases are classified as either purines or pyrimidines.  The two purines are Adenine (A) and Guanine (G) which are similiar to the compound Purine.  The two pyrimidine bases are Thymine (T) and Cytosine (C) which are structured similiar to the compound Pyrimidine.  In RNA Thymidine is replaced by Uracil.  The collective term for these structures is "nitrogenous base".  Each base contains either/or hydrogen (h), nitrogen (n) and oxygen (o) atoms located on the structure where the "cut" would exhist on the sawed ladder rungs.  When these bases move close together there is an attraction between these atoms and a bridge forms called a hydrogen bond  or h-bond.Thymine has an o and a h.  Adenine has a h which is attracted to T's o and an n which is attracted to T' h. A and T always h-bond or pair.  Cytosine has an h,n,and o.  Guanine has two h's and an o.  one h on guanine is attracted to the o on cytosine, the other to the n.  The o is attracted to the h on cytosine.  Therefore C always pairs with G and is held together by three h-bonds, where A and T are paired by two h-bonds.  In total the h-bonds strongly bind the two DNA single strands together but one at a time they can be broken to seperate the strands much like a zipper opening link by link.  Since C always pairs with G their proportion is is always the same.  The same is true for A and T.  Each Dna single strand has what is called a 3' (three prime hydroxyl) and a 5' (five prime phosphate) end.  When the two single strands pair to form thd Double strand they Form with the 3' end of one strand joining at the 5' end of the other strand.  This is known as antiparallel since they are running in opposite directions.
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http://search.yahoo.com/search?p=shattered+helix+dna+of+humans&ei=UTF-8&fr=FP-tab-web-t&x=wrt  read through these to see if any of them are what you need
1102264
You know, it is really obvious when you copy a question straight out of a book or homework assignment.\n\nYou could at least try to engage your brain enough to rewrite it in your own words.  I admit the wording is stilted and awkward, but rewriting it in your own words should make it easier to understand.\n\nI haven't even studied this subject.  But I can come up with an answer just from knowing the meaning of the words in your question.  Think about the relationship between heredity, DNA, and how  species are named.  Your text probably tells you about a procedure analyzing the cytosine in DNA and how it is interpreted.  This is what the teacher expects.  The answer probably isn't in the book, because you need to connect all the dots to see the whole picture.\n\nPart of science is developing skill in recognizing and exploiting the  relationships between things.  This makes science exciting, and not just a boring exercise in memorizing things by rote.  It will make learning science much more exciting and interesting.\n\nI promise.
579803
this has some lock diagrams. hope it helps
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OKay....try to make things as simple as I can for you, with all the words you provided.\n\nDouble stranded DNA is transcribed into single stranded mRNA which codes for amino acids by a process called transcription. The mRNA is then translated into polypeptide of amino acid chains. The polypeptide folds into proteins which ultimately determines the phenotype.\n\nHope it helped!
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as to number of chromosomes, i couldn't tell.\n\nhowever, as to arrangement, that's a spatial-organization thing. DNA's a long, long, long molecule, and during cellular division you don't want to lose any of it, break it, tangle it, or any other physical issue you can imagine. chromosomes are essentially DNA that's been thickened up by coiling it back on itself several times (think of when you twist a piece of yarn and you eventually get a phone-cord like coil, and if you keep coiling that, you get a supercoil, etc) and by wrapping it around histone proteins. this basically keeps it from getting buggered up during mitosis and meiosis, and keeps it organized when certain genes are not being transcribed; when you DO want to transcribe a gene, it's readily uncoilable.
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Hi midnight, check out this site.  It should be of some help.  No diagrams, but plenty of text information.  Hope this helps.  Good luck.
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http://images2.clinicaltools.com/images/gene/dna_versus_rna_reversed.jpg\n\nits that easy!
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The DNA which carries genetic information in cells is normally packaged in the form of one or more large macromolecules called chromosomes.\n\nA chromosome, from the Greek χρώμα (color) and σώμα (body) is, minimally, a very long, continuous piece of DNA (a single DNA molecule), which contains many genes, regulatory elements and other intervening nucleotide sequences.
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NDA? DNA? Because X-ray crystalography showed it to be that shape. Read Nature vol 171 pg 964
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DNA has the form of a double helix. It is also anti parallel.
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A strand of DNA, the double helix, is acutally two molecules, one on each side of where the 'rungs' connect. \n\n"DNA macromolecules as people typically think of them are not single molecules. Rather, they are pairs of molecules, which entwine like vines to form a double helix"-- 1\n\nDNA is about 2 nanometers wide.  Since electron microscopes have a resolution that can make out 78 picometers (.078 nanometers) we could see a single molecule of DNA. --2