The structure of DNA and RNA is also different. DNA is known for its double helix structure. The double helix is two strands that are intertwined with one another thanks to the complementary bases. RNA is a single-stranded molecule by contrast. The double helix form of DNA helps keep the genetic code intact.

The two strands of DNA form a 3-D structure called a double helix. When illustrated, it looks a little like a ladder that’s been twisted into a spiral in which the base pairs are the rungs and ...

The structure of DNA is highly rationalised as a design to fulfil several primary functions efficiently as follows: 1. Primarily DNA acts as the cell’s genetic blueprint which is mainly used for tran­scription of the encoded information and to serve as the template for replication. 2. DNA must remain stable enough to allow on a modest level ...

DNA is a long polymer made from repeating units called nucleotides, each of which is usually symbolized by a single letter: either A, T, C, or G. The structure of DNA is dynamic along its length, being capable of coiling into tight loops and other shapes. In all species it is composed of two helical chains, bound to each other by hydrogen bonds.Both chains are coiled around the same axis, and ...

This page, looking at the structure of DNA, is the first in a sequence of pages leading on to how DNA replicates (makes copies of) itself, and then to how information stored in DNA is used to make protein molecules. This material is aimed at 16 - 18 year old chemistry students. If you are interested ...

DNA structure. DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A ...

Figured out structure of DNA was a double helix. ribonucleic acid (RNA) A single-stranded nucleic acid that contains the sugar ribose and Uracil (instead of Thymine). helicase. An enzyme that separates ("unzips") DNA strands. DNA polymerase.

The structure of the double helix is somewhat like a ladder, with the base pairs forming the ladder’s rungs and the sugar and phosphate molecules forming the vertical sidepieces of the ladder. An important property of DNA is that it can replicate, or make copies of itself.

DNA is a complex molecule that is found in all living organisms. Constructing DNA models is a great way to learn about DNA structure, function and replication. DNA contains the genetic information for the reproduction of life. Its structure is that of a twisted double helix that is composed of long strands of alternating sugars and phosphate groups, as well as nitrogenous bases (adenine, thymine, guanine and cytosine).