Question

____________________ are used in conjugation, the partial transfer of dna from one cell to another

○ sex pili

○ fimbriae

○ flagella

○ axial filaments

Explanation:

To solve this, we analyze each option:

• Sex pili: These are structures in bacteria that facilitate conjugation, the transfer of DNA between cells.
• Fimbriae: Primarily used for attachment to surfaces, not DNA transfer.
• Flagella: Involved in cell movement, not conjugation.
• Axial filaments: Help in the movement of spirochetes, not related to DNA transfer.

So, sex pili are used in conjugation.

Answer:

A. Sex pili