Question

Nucleus was discovered by _________.

• A. Robert Brown
• B. Robert Hooke
• C. A.V. Leeuwenhoek
• D. Schwaan

Answer 1

The correct option is A

Robert Brown

The correct option is A:

Explanation of the correct option:

1. The nucleus is the brain or director of the cell as it regulates all the functions of the cell and cell organelles.
2. It is present in the center of the animal cell and at the periphery of plants cell.
3. It has genetic material which transfers the characteristics of the parents to the next generation.
4. Robert Brown discovered the nucleus in 1831 while studying the process of fertilization, he found the nucleus in the reproductive cells under the microscope.

Explanation of the incorrect option:

Option B:

1. Robert Hooke discovered the first dead cell in 1665 from the bark of the tree.

Option C:

1. Anton van Leeuwenhoek discovered the first living cell bacteria and spirogyra in 1974.

Option D:

1. Schwann (1804-1881) is given the credit for their cell theory and made the assumption that all living things are made up of cells

Final answer: The nucleus was discovered by Robert Brown.