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What is the significance of adding prote...

What is the significance of adding proteases at the time of isolation of genetic material (DNA)?

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Proteases will remove proteins at the time of isolation of DNA making it totally free for down stream treatment.
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The Genetic Material Is Dna

Write short notes on a) Micro injection b) Isolation of genetic material.

DNA is genetic material because

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Following enzymes /techniques are used in the process of recombinant DNA technology A. Eco RI to cut the isolated genome B. DNA ligase C. Protease and ribonuclease for removal of proteins and RNA from DNA D. Production of recombination hosts E. lysozyme for isolation of the genetic material (DNA) F. gel electrophoresis for separation and isolation of DNA fragments Mark the correct sequence of their use.

Assertion : Nucleic acid is the genetic material of all organisms without exception Reason: During isolation of genetic material ribonucleases and proteases are used.

Who proved experimentally that DNA is genetic material ?