Question

where was the cell nucleous observed for the first time and by whom?​

Answer 1

The nucleus was the first organelle to be discovered. The probably oldest preserved drawing dates back to the early microscopist Antonie van Leeuwenhoek (1632 – 1723). He observed a "Lumen", the nucleus, in the red blood cells of salmon.

Answer 2

Answer:

nucleus of the cell was discovered by Robert brown