Home › NEET UG › Biology › Biotechnology: Principles and Processes › To isolate DNA from bacterial cells, the cell wa…
To isolate DNA from bacterial cells, the cell wall is digested by:
ALysozyme
BTrypsin
CChitinase
DCellulase
Answer & Solution
Correct answer: A. Lysozyme
**Cell-wall digesting enzymes**: **Lysozyme** for bacteria, **cellulase** for plants, **chitinase** for fungi. After cell lysis, **proteins → protease**; **RNA → ribonuclease**. Finally, DNA precipitates with **chilled ethanol** as a spool of fine threads.
Related questions
Making multiple identical copies of a specific piece of DNA by linking it to an ori is terBiotechnology, per the European Federation of Biotechnology (EFB), is best defined asA "vector" in recombinant DNA technology serves toThe first restriction endonuclease that recognised a specific 6-base sequence and cut DNA Which of the following is NOT a step in genetically modifying an organism as per NCERT?A restriction enzyme cutting 5'-G|AATTC-3' leaves overhangs consisting ofNucleases fall into two broad categories:The presence of an "origin of replication" is important because it