Structure Of Chromosomes Flashcards
1
Q
What are chromosomes ?
A
Chromosomes are the highly condensed coiled chromatin fibres.
2
Q
Who discovered CHROMOSOMES ?
A
In 1882, a German Scientist, Walther Fleming
3
Q
What is chromatin formed of ?
A
- DNA (deoxyribonucleic acid) - about 40%
2. Histones (a particular type of proteins) -about 60%
4
Q
What does a single human chromosome have ?
A
A single human chromosome may have about a million nucleosomes.
5
Q
What is the structure of DNA ?
A
The DNA is a very large single molecule, and hence it is described as a macromolecule.
6
Q
What are the Bases ?
A
- Adenine
- Guanine
- Cytosine
- Thymine
