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Question
What background information did Watson and Crick had available with them for developing a model of DNA? What was their own contribution?
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Solution
Wastson and Crick had the following informations which helped them to develop a model of DNA.
- Chargaffs’ Law suggesting A = T, and C = G.
- Wilkins and Rosalind Franklin’s work on DNA crystal’s X-ray diffraction studies about DNA’s physical structure.
- Watson and crick proposed
- How complementary bases may pair
- Semi-conservative replication and
- Mutation through tautomerism
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Assertion (A): DNA replication is said to be semi-conservative.
Reason (R): After DNA replication, each daughter molecule has one old and one new strand.
Which of the following is the function of single-strand binding proteins?
Which of tbe following is generally used for creating density gradient during centrifugation?
Which one of the following can form a nucleotide of DNA?
Which of the following statement is incorrect?
In viral DNA, how many origins of replication is/are present?
Characteristics unique to DNA are ______.
In prokaryotes, the primers of lagging strands are removed by ______.
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