Dna is a nucleic acid polymer composed of which repeating structural unit? nucleotides phosphate groups ribosomes proteins

DNA is a nucleic acid polymer composed of repeating structural unit is referred to as nucleotide.

Further Explanation:

DNA is a complex molecule made up of deoxyribose sugar, nitrogenous bases and phosphate groups attached by glycosidic, phosphoanhydride and hydrogen bonds. The structure of ‘DNA” was revealed by a sequence of experiments. Rosalind Franklin obtained the XX-ray micro graph of DNA using X-ray crystallography and revealed the helical shape of the DNA molecule. The XX-ray micro graph consisted of an X-shaped pattern that was derived from the DNA molecule that is double helix in nature. James Watson along with Francis Crick came up with a structure of DNA showing complementary base pairing.The sequence of base pairs in DNA encodes all the genetic information of an organism.It can be a double or single-stranded molecule found in almost all living cells. Genetic information is present in the form of nucleotides (base+sugar+phosphate group). These nucleotides are monomer of nucleic acids (DNA or RNA) and make up the structures of the same.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Genetics

Keywords:

DNA, glycosidic, phosphoanhydride, James Watson, base pair, nitrogenous base, molecule, RNA, hydrogen bond, genetic information, neucleotide.

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