Molecular Basis of Inheritance — Practice Quiz
ICSE · Class 12 · Biology
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Quick Quiz: Molecular Basis of Inheritance
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
What is a gene in its basic sense?
Who coined the term gene in 1909?
Which scientist isolated 'nuclein' from pus cell nuclei in 1869?
What did Altmann rename nuclein as in 1889?
Sample Questions
Who proposed the double helix model of DNA?
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Watson and Crick
Watson and Crick proposed the double helix model in 1953, based on X-ray crystallography data from Rosalind Franklin and Maurice Wilkins. They shared the Nobel Prize in 1962.
In DNA, which base pairs with Adenine?
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Thymine
In DNA, Adenine pairs with Thymine via 2 hydrogen bonds (A≡T). Guanine pairs with Cytosine via 3 hydrogen bonds (G≡C). In RNA, Uracil replaces Thymine.
DNA replication in living organisms is:
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Semiconservative
DNA replication is semiconservative — each new double helix contains one original parental strand and one newly synthesised strand. This was proved by Meselson and Stahl (1958).
What is the central dogma of molecular biology?
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DNA → RNA → Protein
The central dogma states: DNA is transcribed to mRNA, which is translated into protein. Information flows from DNA to RNA to protein.
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