In which year did Walther Flemming coined the term ‘chromatin’ for the stained substance found in the cell nucleus?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 1879.
- In 1879, Walther Flemming introduced the term 'chromatin' to describe the material within the cell nucleus that readily takes up certain dyes.
- His observations were crucial for advancing cell biology and genetics, as he discovered that chromatin becomes distinctly visible during cell division. This insight greatly contributed to understanding cellular processes like mitosis and set the stage for further research into chromosomes and genetic material.
- Chromatin is a mix of DNA and proteins within the nucleus of eukaryotic cells. It is essential for organizing genetic information, controlling gene activity, and managing DNA packaging and cell division.