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jacob and wollman coined the term plasmid episome circular DNA chromosome

jacob and wollman coined the term
  1. plasmid
  2. episome
  3. circular DNA
  4. chromosome

Grade:12th pass

1 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
6 years ago
The correct option is 2.
episome, in bacteria, one of a group of extrachromosomal genetic elements called plasmids, consisting of deoxyribonucleic acid (DNA) and capable of conferring a selective advantage upon the bacteria in which they occur. Episomes may be attached to the bacterial cell membrane (such a cell is designated F+) or become integrated into the chromosome (such a cell is designated Hfr). F+ and Hfr cells act as donors during conjugation, a mating process in certain bacteria (e.g., Escherichia, Salmonella, Serratia, Pseudomonas). During conjugation, cells lacking the episome (called F- cells) may receive either the episome (from an F+ cell) or the episome plus the chromosomal genes to which it is attached (from an Hfr cell).

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