Answer:
The prokaryotes uses organ called Pilus during conjugation process.
Step-by-step explanation:
Pilus is a long thread like appendages which seen in the capsules of the bacteria. During conjugation process, the pilus from the donor bacteria extends and gets attached to the recipient bacteria.
The shared pilus acts as the bridge between the donor as well as the recipient bacteria through which the exchange of genetic information occurs. Thus it can be inferred that during conjugation prokaryotes uses pilus.