Q.The mode of reproduction in bacteria is by

Step 1. Bacteria do not form specialised gametes, so option (a), 'Formation of gametes', does not describe how bacteria reproduce.

Step 2. Endospore formation (option b) is a survival strategy that lets a single bacterial cell withstand harsh conditions and later germinate back into one cell - it is not a reproductive process that multiplies the number of individuals, so it does not fit either.

Step 3. Zoospore formation (option d) is a motile-spore reproductive strategy typical of algae and fungi, not of bacteria.

Step 4. The chapter explicitly states that conjugation is common among ciliates, such as Paramecium and Vorticella, and bacteria (prokaryotes) - directly naming bacteria as organisms that undergo conjugation.

Recall which organisms the chapter explicitly names as undergoing conjugation.

• Assuming binary fission must be the answer since it is the most commonly known bacterial reproduction mode - it is not among the options offered here.
• Treating endospore formation as reproductive because it involves a distinct dormant structure, when it is actually a survival mechanism, not a means of multiplying.