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A DNA molecule's structure is similar to a twisted ladder. The "rungs" of the ladder may be represented by the nucleotide bases such as adonine and thymine. The ribose sugar part and the phosphate groups of the nucleotide bases are located at the sides, on the "rails" of the ladder-like structure.

The sugar and phosphate portion of the nucleotides are found as segments of the rails.

Further Explanation:

Deoxyribonucleic acid (DNA) is a chain of long molecules that contain the genetic information of an organism. It is a double helix or two stranded molecules that are bonded to each other in a twisted structure. These two strands are antiparallel to each other and run in the opposite direction. It is present inside the nucleus of each cell.

DNA is composed of nucleotide which consists of phosphate, a ribose sugar, and a nitrogen base. The four nitrogen bases are adenine, guanine, thymine, and cytosine. They are paired with each other A with T and G with C. these are responsible for genetic code. Each of these nitrogen bases is attached to a hydrogen bond. The hydrogen bond is responsible for its twisted structure. The phosphate and ribose group is present on the sides of each strand.

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Answer Details:

Grade: High School

Subjects: Biology

Chapter: Structure of DNA

Keywords:

Deoxyribonucleic acid, molecules, genetic, information, organism, double, helix, antiparallel, adenine, guanine, thymine, cytosine, hydrogen, phosphate, ribose, nucleotide.

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