Mostly occurs in the nuclei of the cells but in lesser amount outside the nucleus as well:
Correct answer: D. DNA
- A. RNA
- B. Proteins
- C. Nucleic acids
- D. DNA
Explanation
DNA is the primary genetic material located in the nucleus of eukaryotic cells, where it forms chromosomes and genes. It is also present in smaller amounts in organelles like mitochondria and chloroplasts, which have their own DNA, known as extranuclear or organelle DNA. This distinguishes DNA from RNA, which primarily functions in the cytoplasm, and proteins, which are not nucleic acids but rather the products of genetic instructions. Nucleic acids as a category include both DNA and RNA, but the question specifically refers to the location mostly in the nuclei, making DNA the correct answer.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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