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Who discovered that the sugar phosphate backbone of DNA lies on the outside of the molecule and has a helical shape?
Wiki User
∙ 11y ago
James Watson and Francis Crick, 1953
Wiki User
∙ 11y ago
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Who offered the model of DNA molecule structure?
The helical nature was discovered by Rosalind Franklin and Watson and Crick first built the model of it.
Are Nitrogenous bases always located perpendicular to the helical axis?
As far as I know, the polar sugar-phosphate backbones of each strand form the helical scaffold, with the nitrogenous bases in the interior of the molecule, their planes nearly perpendicular to the helical axis. However, I cannot sure that it always does. I am curious that there are some exceptional cases.
What is a very long helical molecule made of units with distinctive R-groups?
RNA
Who first correctly described the molecular structure of DNA?
Sir James Watson and Sir Francis Crick first described the molecular structure of DNA correctly. They not only mentioned the fact that DNA is a helical structure, but also described how the constituting molecules are arranged in the helix. The base-pairing, sugar-phosphate backbone were first described by Watson and Crick.
Who scientists are primarily responsible for the discovery of the structure of DNA?
The double helical structure was discovered by Watson & Crick.
Who offered the model of DNA molecule structure?
The helical nature was discovered by Rosalind Franklin and Watson and Crick first built the model of it.
Are Nitrogenous bases always located perpendicular to the helical axis?
As far as I know, the polar sugar-phosphate backbones of each strand form the helical scaffold, with the nitrogenous bases in the interior of the molecule, their planes nearly perpendicular to the helical axis. However, I cannot sure that it always does. I am curious that there are some exceptional cases.
Which term most accurately describes the shapes of a DNA molecule?
DNA are double helical spiral molecules. Structure was discovered by Watson and Crick
What the structure of DNA?
DNA has both primary and secondary structures, on a primary level it is made up of three main molecules a sugar and phosphate group backbone and attached to this backbone on of the four nitrogen bases. On a secondary level the sugar phosphate and necleotides run anti parallel to another strand of DNA and form a helical structure by wrapping around itself and is held together by hydrogen bonds.
What is the name of the sugar molecules found in DNA?
The sugar that is found in DNA is called Deoxyribose
What type of molecule has a very long helical molecule made of units with distinctive r-groups?
RNA
What are common carbon backbone structures?
The three kinds of carbon backbones are straight chain,branched chain,and the ring.
What is a very long helical molecule made of units with distinctive R-groups?
RNA
Describe the 3d structure of DNA?
DNA is double helical in structure. each spiral strand, composed of a sugar phosphate backbone and attached bases, is connected to a complementary strand by hydrogen bonding (non- covalent) between paired bases, adenine (A) with thymine (T) and guanine (G) with cytosine (C).
Who first correctly described the molecular structure of DNA?
Sir James Watson and Sir Francis Crick first described the molecular structure of DNA correctly. They not only mentioned the fact that DNA is a helical structure, but also described how the constituting molecules are arranged in the helix. The base-pairing, sugar-phosphate backbone were first described by Watson and Crick.
What is the role of MWilkins in the race for double helix DNA construction?
Although most sources say James Watson and Francis Krick were the two scientists credited for the elucidation of the double helical structure of DNA, one must never forget the invaluable contribution of Maurice Wilkins, who was a crystallographer. Wilkins contribution undeniably aided in the understanding of how sugars and bases are arranged on a phosphate backbone to form a double helical structure that we all recognize to this day.
What are the parts of DNA?
the parts of DNA are: phosphate nitrogenous base(adenine, guanine, thymine and cytosine) hydrogen band helical protein
