what is the structure of dna?

Answer 1

Deoxy-Ribonucleic Acid (DNA) is a Double Helix molecule that contains a certain genetic code. This Double Helix molecule is in a spiral arrangement. It is also the building blocks of life.

Guanine (G)= Adenine (A)
Cytosine (C)= Thymine (T)

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Answer 2

Deoxyribose Nucleic Acid (DNA) contains three main units: a sugar (deoxyribose, a sugar with 5 carbons - hence the name), a phosphate acid, and an organic base (either Adenine, Guanine, Cytosine or Thymine, abbreviated as A, G, C, T).

The phosphate and sugar groups join together in an alternate chain, whereas the bases protrude from the sugar, almost creating a comb-like structure where the bases are the "teeth". Two strands of these are then coiled around each-other.

The bases prefer to bond to each-other in the following way; A binds with T, C binds with G, so the two strands line up into a twisted structure called an alpha helix. Imagine how old knotted rope looks, with the strands twisted around one another.

Answer 3

The structure of DNA is in the form of a double helix and is made up of adenosine, guanine cytosine and thymine. the difference in the material between DNA and RNA is that RNA contains uracil instead of thymine. there are other differences but that involves a more complex explanation.

Answer 4

DNA had a double helix structure, with a sugar-phosphate backbone. The two backbones are held together by hydrogen bonds between the organic base pairs. Base pairing is complementary and specific--adenine(A) pairs with thymine(T) and guanine(G) with cytosine(C).

In DNA, the sugar is deoxyribose. (That in RNA is ribose.)

Answer 5

double-helical structures.