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Why is DNA replication called semiconservative? 

Important Questions on Molecular Basis of Inheritance

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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
'DNA replication is said to be semiconservative'' Why? Describe the experimental proof of Messelson and Stahl to show DNA replication is semiconservative.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
Taylor conducted the experiments to prove the semiconservative mode of chromosome replication on:
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
Describe the mechanism of DNA replication with a suitable diagram.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication

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Identify the picture given in the picture.

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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
DNA replicates semiconservatively was first shown in :
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication

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 Identify the process in the picture and write the peculiarities of the newly synthesised daughter strands.

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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
Draw a labelled diagram of replicating fork in DNA helix.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
Draw a labelled diagram of replicating fork.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
"Use of heavy isotope of nitrogen by Meselson and Stahl demonstrated semi-conservative mode of replication of a DNA molecule." Explain how did they arrive at this conclusion.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
Diagrammatically express the Watson Crick's semiconservative models of DNA replication.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication

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Name any two enzymes needed for this process.

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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
Light DNA N14 transferred to N15 labelled culture medium for replication. The ratio of total number of N15 and N14 labelled strands of DNA extracted from the culture after three generations
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication

The diagrammatic representation of the central dogma given below is not correct. Make necessary corrections and redraw it.

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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication

Write the names of A, B and C in the following picture.

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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
Define DNA Replication. In which phase of cell cycle does replication occur in Eukaryotes ? Describe briefly the mechanism of DNA replication.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
A mixture of equal numbers of fast and slow dividing cells is cultured in medium containing a trace amount of radioactively labeled thymidine for one hour. The cells are then transferred to regular (unlabeled) medium. After 24hrs of growth in regular media
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
During DNA replication, Okazaki fragments are used to elongate:
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
What are Okazaki fragments?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
Meselson and Stahl carried out centrifugation in CsCl2 density gradient to separate:
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Replication
E. coli has only 4.6×106 base pairs and completes the process of replication within 18 minutes; then the average rate of polymerisation is approximately: