who invented the double helical structure of DNA.?

Answer 1

Nature

Answer 2

Watson and Crick may have discovered the double helical structure but they certainly didn't invent it. They used an X-ray crystallography photograph that Rosalind Franklin took of B-DNA to show that DNA had to have a double helical structure.

Answer 3

The DNA helix was not invented but rather discovered. Several researchers worked on discovering this helical structure: Watson & Crick; Franklin & Wilkins; and Pauling. Watson,Crick and Wilkins shared the Nobel prize for this discovery.
See the article in wickipedia: http://en.wikipedia.org/wiki/DNA#Discovery_of_the_structure_of_DNA

Answer 4

Watson and Crick invented structure of DNA

Answer 5

well, james watson and francis crick had invented the double helix model of the dna structure

Answer 6

Discovered would be the word to use. It was Watson and Crick, at Oxford (?). and their team. special recognition goes to the woman who provided them with the critical x-ray photo of crystallized DNA. Look up the story - it's a great one. Science can be full of drama, too.

Answer 7

DNA was invented by Alexander Graham Bell and used it to first lubricate the telephone signal to make calls more smoother sounding.

Answer 8

Deoxyribonucleic acid (DNA) is a nucleic acid —usually in the form of a double helix— that contains the genetic instructions specifying the biological development of all cellular forms of life, and most viruses. DNA is a long polymer of nucleotides and encodes the sequence of the amino acid residues in proteins using the genetic code, a triplet code of nucleotides.

In complex eukaryotic cells such as those from plants, animals, fungi and protists, most of the DNA is located in the cell nucleus. By contrast, in simpler cells called prokaryotes, including the eubacteria and archaea, DNA is not separated from the cytoplasm by a nuclear envelope. The cellular organelles known as chloroplasts and mitochondria also carry DNA.

DNA is often referred to as the molecule of heredity as it is responsible for the genetic propagation of most inherited traits. In humans, these traits can range from hair colour to disease susceptibility. During cell division, DNA is replicated and can be transmitted to offspring during reproduction. Lineage studies can be done based on the facts that the mitochondrial DNA only comes from the mother, and the male Y chromosome only comes from the father.

Every person's DNA, their genome, is inherited from both parents. The mother's mitochondrial DNA together with twenty-three chromosomes from each parent combine to form the genome of a zygote, the fertilized egg. As a result, with certain exceptions such as red blood cells, most human cells contain 23 pairs of chromosomes, together with mitochondrial DNA inherited from the mother.
Overview
Space-filling model of a section of DNA molecule
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Space-filling model of a section of DNA molecule
DNA base pairing
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DNA base pairing

Contrary to a common misconception, the DNA is not a single molecule, but rather a pair of molecules joined by hydrogen bonds: it is organized as two complementary strands, head-to-toe, with the hydrogen bonds between them.[1] Each strand of DNA is a chain of chemical "building blocks", called nucleotides, of which there are four types: adenine (abbreviated A), cytosine (C), guanine (G) and thymine (T).[1] (Thymine should not be confused with thiamine, which is vitamin B1.) In some organisms, most notably the PBS1 phage, Uracil (U) replaces T in the organism's DNA.[2] These allowable base components of nucleic acids can be polymerized in any order giving the molecules a high degree of uniqueness.

Answer 9

its Watson and Crick.. discovered that DNA is a double helix structure

Answer 10

double helical struture was given by watson and crick