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DNA replicates semi-conservatively was f...

DNA replicates semi-conservatively was first shown in:

A

Vicia faba

B

E.coli

C

Streptococcus pneumoniae

D

Drosophila

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Semiconservative replication of DNA was first demonstrated in :

Identify the correct Statements. (i) Kornberg proved semi conservative model of DNA replication. (ii) The Chromatin that is tightly packed is called heterochromatin. (iii) Catalytic RNA is called ribozyme. (iv) The coding strand is displaced during transcription.

Assertion (A): Semi-conservative model was proposed by Hershey and Chase. Reason (R): The daughter DNA contains only new strands.

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Assertion : A piece of DNA inserted into an alien organism generally does not replicate if not inserted into a chromosome. Reason : Chromosomes have specific sequences called ori region where DNA replication is initiated.