Haritha,Subject Matter Expert at Edumarz
Solution:Copying of DNA(Deoxyribonucleic acid) is an important method to create new cells.Cells use chemical reactions to make copies of their DNA.
DNA is located in the nucleus of the cell and acts as a source of information for the production of proteins.If any changes occur to information in proteins, then different proteins will form and it leads to the formation of altered body designs.So the creation of a DNA copy is considered a basic process in reproduction.
DNA
It is the hereditary material of humans
Located in the nucleus of the cell
They form a double helix structure
It is formed of bases adenine,guanine,thymine and cytosine
Shows replication and forms copies of itself
The human genome contains around three million DNA bases
DNA tests are used to identify various genetic diseases
source:https://unsplash.com/s/photos/human-dna
Discovery of DNA
Friedrich Miescher first identified a substance called nuclein in white blood cells.
Rosalind Franklin carried out X-ray crystallography and obtained images of DNA
Double helix structure of DNA invented by Watson and Crick
Diseases caused by DNA damage
Ataxia telangiectasia
Xeroderma pigmentosum
Bloom’s syndrome
Werner’s syndrome
Cancer
Li-Fraumeni-syndrome