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प्रश्न
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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उत्तर
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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संबंधित प्रश्न
Explain the semi-conservative replication of eukaryotic DNA.
Which enzyme does remove supercoils from replicating DNA?
Very Short Answer Question:
Why are Okazaki fragments formed on lagging strand only?
Define Heterochromatin.
Describe the process of semiconservative replication of DNA with the help of a neat and labelled diagram.
Okasaki fragments are joined together by ______.
What are Okazaki fragments?
E. coli cell grown on 15N medium are transferred to 14N medium and allowed to grow for two generations. DNA extracted from these cells is ultracentrifuged in a cesium chloride density gradient. What density distribution of DNA would you expect in this experiment?
What is the basis for the difference in the synthesis of the leading and lagging strand of DNA molecules?
Meselson and Stahl’s experiment proved ______.
Identify the direction of DNA replication in eukaryotes.
When DNA directs the synthesis of chemical molecules other than itself, then such functions of DNA are known as ______.
At the point of origin, enzyme endonuclease nicks one of the strands of DNA by breaking the ______
Which of the following term correctly describes the movement of ribosome on the mRNA?
When the DNA molecule appears like inverted Y, it is ______
Nucleolus is a major center for:
During the replication of DNA, the separated strands are prevented from recoiling by using ______.
Draw a suitable diagram of replication of eukaryotic DNA and label any three parts.
Which of the following DNA polymerase enzyme in eukaryotes has 5' -3' exonuclease activity?
Torsional stress created during DNA replication is relieved by ______.
