Scelta multipla
Which of the following best describes the typical growth pattern and bacterial type of Staphylococcus aureus?
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1. Introduction to Microbiology
Members of the Bacterial World
Scelta multipla
Which bacterial fertility factor is responsible for the transfer of genetic material during conjugation?
A
Col factor (colicinogenic factor)
B
F factor (fertility factor)
C
R factor (resistance factor)
D
Ti plasmid (tumor-inducing plasmid)
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Understand that bacterial conjugation is a process where genetic material is transferred from one bacterium to another through direct contact.
Identify the role of different plasmids: Col factor produces colicins (toxins), R factor carries antibiotic resistance genes, and Ti plasmid is involved in plant tumor formation.
Recognize that the F factor (fertility factor) is a specific plasmid that enables the formation of a pilus, which is essential for the physical connection between donor and recipient cells during conjugation.
Recall that the F factor contains genes that initiate the transfer of DNA, making it the key element responsible for genetic material transfer in bacterial conjugation.
Conclude that among the options, the F factor is the correct answer because it directly mediates the conjugation process.
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