पशु कोशिकाओं (animal cells) में निम्नलिखित में से कौन सा कोशिकांग उपस्थित नहीं होता है?

Prokaryotic cells do not possess which of the following membrane-bound organelles?

The dense circular structure near the center of a eukaryotic cell is known as the:

Who among the following discovered the nucleus in cell?