Lysozyme should be used when isolating DNA in a pure form from:

1. A bacterial cell 2. A fungal cell
3. A plant cell 4. An animal cell
Subtopic:  Process of Biotech | Restriction Enzymes - Main Enzymes | General Design of an rDNA experiment |
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To obtain DNA in pure form, the enzyme that should never be used to hydrolyse biomolecules in a cell lysate, will be:
 
1.  Lysozyme or Chitinase 2.  DNase
3.  DNAs 4.  Proteases
Subtopic:  Process of Biotech |
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Gene cloning occurs:

1.  when a phage transfers bacterial DNA from one bacterium to another.
2.  when a bacterium takes up DNA from the surrounding fluid.
3.  when a bacterium carrying a recombinant plasmid reproduces, thus allowing for the production of multiple copies of the recombinant plasmid. 
4.  when DNA is produced from an RNA template.

Subtopic:  Process of Biotech |
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