Biology: Chromosomes and Cell Division

What happens to chromatin prior to cell division?

Who was the first scientist to study chromosomes in animals?

What is the name of the DNA-protein complex found in chromosomes?

During which process did Walther Flemming observe chromosomes?

How do chromosomes appear under an electron microscope when the cell is not dividing?

Chromosomes

Chromosomes are structures within the nucleus containing most of a cell's DNA
When stained, chromosomes are visible under a microscope
Each chromosome contains one long DNA molecule associated with many proteins; this is called chromatin
Chromatin is a very thin darkly stained fibre when a cell isn't dividing; as a cell prepares to divide, this chromatin coils and condenses into thick, separate chromosomes, which readily absorb color
Chromosomes are ribbon-like structures.

Cell Cycle and Cell Division

Cell division is a fundamental characteristic of life, maintaining life generation after generation, ensuring normal cell functions
Through mitosis, body cells receive identical chromosome sets
Mitosis involves evenly distributing duplicated chromosomes into daughter cells.
Chromosomes in animal cells were first studied in 1882 by Walther Flemming, who observed them in rapidly dividing cells of salamander larvae.
He called the process "mitosis," meaning "thread," for the lengthwise division of the threads

Explore the fascinating world of chromosomes and the cell cycle with this quiz. Learn how chromosomes are structured, their role in cell division, and the concept of mitosis. Test your knowledge on these essential biological processes.