Question

prokaryotic cells reproduce by _____________.
a binary fission
b quaternary fission
c quaternary fusion
d binary fusion

Explanation:

Prokaryotic cells (like bacteria) reproduce asexually through binary fission, where one cell divides into two identical daughter cells. Quaternary fission/fusion are not standard prokaryotic reproduction methods, and binary fusion is incorrect (fusion is combining, not reproducing). So the correct option is a.

Answer:

a. binary fission