Question

1
Where was the cell nucleus 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:

Robert brown observes nucleus for the first time