Karyology is the study of
Nucleus
The correct option is D.
Explanation for correct option:
Explanation for incorrect option:
Option A:
The cytoplasm is a fluid composed of salts and organic matter that fills cells.
Option B:
The cell is the primitive unit of all living organisms.
Option C:
The mitochondria is a cell organelle that generates chemical energy for the functioning of the cell.
Final answer: Karyology is the study of nucleus.