Biotechnology- Principles and Processes Question 62
62. The plasmid
[1995]
(a) helps in respiration
(b) genes found inside nucleus
(c) is a component of cell wall of bacteria
(d) is the genetic part in addition to DNA in micro-organisms
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Answer : d
Hints & Solutions
(d) The term ‘plasmid’ was introduced by Lederberg in 1952 for extragenomic DNA segment. It is a small circular molecule of DNA found in bacterial cell in addition to the larger circular bacterial DNA.
