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DQuestion 12 12. Which of these statements is true about transduction? O Naked DNA is passed from the environment to a bacterium. O A virus is required for transfer of genetic material. O Genetic recombination does not occur O Bacteria-bacteria contact is required 따 | Question 13 13. Put the steps of Gene cloning in the correct order
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Question: 12. Which of these statements is true about trasduction?

Answer: A virus is required for transfer of genetic material - True.

Naked DNA is passed from the environment to a bacterium - False.

Genetic recombination does not occur - False.

Bacteria-bacteria contacts is required - False..

Bacteria can transfer genetic material from one cell to another. The exchange of genes or gene transfer among bacteria takes place mainly by three mechanisms: transformation, transduction, and conjugation. Thus the process of bacterial genetic recombination occurs in these mechanisms. In transformation, the bacterial cell receives fragments of foreign DNA directly from the environment. In transduction, genetic material (DNA) is transferred from one bacterium to another by a virus (bacteriophage). Horizontal gene transfer by transduction results in genetic recombination.In conjugation, transfer DNA from one bacterium to another occurs by direct cell-to-cell contact.  

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