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Molecular Basis of Inheritance
Gene Transfer in Bacteria
1 question from 1 paper, each with its answer.
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Concepts tested
- Transduction by bacteriophage
All Questions
2002 AIPMT 1 question
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Which statement is correct for bacterial transduction : -Bacteria exchange genes in three ways:
Transformation: uptake of free DNA from the surroundings.
Conjugation: direct transfer of DNA through a conjugation tube (pilus) between two cells in contact.
Transduction: transfer of bacterial genes from one bacterium to another by a bacteriophage (virus), which accidentally packs some host DNA and carries it to the next host (Zinder and Lederberg).
So transduction is the transfer of some genes from one bacterium to another through a virus.