Question
The subunits of DNA are known as :
The correct answer is
Nucleotide
Identifying DNA Subunits
DNA (Deoxyribonucleic Acid) is a complex molecule that carries genetic instructions. Understanding its basic components is crucial.
Analyzing the Options
- Nucleotide: This is the fundamental monomer, or subunit, of nucleic acids like DNA. Each nucleotide consists of a phosphate group, a deoxyribose sugar, and a nitrogenous base (Adenine, Guanine, Cytosine, or Thymine). DNA is a polymer made of repeating nucleotide units linked together.
- Nucleosome: A nucleosome is a basic structural unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound around eight histone proteins. It's a level of organization, not the fundamental subunit.
- Nucleoside: A nucleoside is similar to a nucleotide but lacks the phosphate group. It comprises only the sugar and the nitrogenous base.
- Polypeptide: Polypeptides are polymers of amino acids, forming the building blocks of proteins, not DNA.
Conclusion on DNA Subunits
Based on the composition and structure, the correct term for the subunits of DNA is Nucleotide.
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Important Questions from Biomolecules
Hemocyanin is an oxygen-transport metalloprotein present in some invertebrate animals. This protein contains:
- ______ is a sulphur containing amino acid.
- Which type of sugar is responsible for sweetening in fruits?
- Which biomolecules are responsible for catalysing biochemical reactions?
- Following food is the richest source of $\omega$-3 fatty acids :
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