Nucleo-histones are present in:
Correct answer: C. Chromosomes
- A. Lysosome
- B. Ribosomes
- C. Chromosomes
- D. Mitochondria
Explanation
Option C is correct.Nucleohistones are present in chromosomes. They are a complex of DNA and histone proteins, which are responsible for packaging DNA into a compact structure. Nucleohistones are found in all eukaryotic cells, but they are most abundant in the nucleus.Histones are small proteins that are rich in basic amino acids. They have a positive charge, which allows them to bind to the negatively charged DNA. The histones wrap around the DNA, forming a nucleosome.
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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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