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प्रश्न
Label the parts of the DNA in the diagram given below. Explain the structure briefly.
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उत्तर
DNA is the hereditary material as it contains genetic information. DNA is a large molecule, consisting of millions of nucleotides. Each nucleotide consists of three compounds.
Nucleotides in a DNA
(a) A sugar molecule – Deoxy Ribose sugar
(b) A nitrogenous base [Purines and Pyrimidines]
- Purines (Adenine and Guanine)
- Pyrimidines (Cytosine and Thymine)
(c) A phosphate group Nucleoside and Nucleotide:
Nucleoside = Nitrogen base + sugar
Nucleotide = Nucleoside + Phosphate
The nucleotides are formed according to the purines and pyrimidines present in them.
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संबंधित प्रश्न
Fill in the blank:
DNA acts as director of ______ synthesis.
Choose the correct answer :
DNA model was given by ___________
Choose the correct answer :
Which of these is not present in DNA?
Multiple Choice Question:
In the RNA molecule, which nitrogen base is found in place of thymine?
DNA consists of two ______ chains.
How is the structure of DNA organized?
A DNA strand with the sequence AACGTAACG is transcribed. What is the sequence of the mRNA molecule synthesized?
Which of the following is not a component of a nucleotide?
A unique chemical substance isolated from the nuclei of pus cells by Friedrich Miescher was initially named ______.
