Human Biology (MindTap Course List)
11th Edition
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cecie Starr, Beverly McMillan
Chapter21: Dna, Genes, And Biotechnology
Section: Chapter Questions
Problem 9RQ
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Question
What is a DNA sequence?
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Step 1
DNA or Deoxyribonucleic acid is a biomolecule, which serve as a genetic material in number of organisms including humans. It is a polymer composed of deoxyribonucleotides as its monomer. DNA is composed of deoxyribose sugar, phosphate, and nitrogenous base. Nitrogenous base are of two types: Purines and Pyrimidines. Purines are further of two types, namely, adenine and guanine. Pyrimidines are of three types: thymine, cytosine, and uracil (out of these, only thymine and cytosine occur in DNA, uracil does not).
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