DNA is a molecule that contains the genetic instructions used in the development and functioning of all living organisms. It is made up of nucleotides with phosphate groups and a sugar group joined in a chain to form a double helix structure. James Watson, Francis Crick and others discovered that DNA has a double helix structure in 1953 and that it can carry biological information through its sequence of four nitrogen bases: adenine, thymine, guanine and cytosine. DNA was first discovered and extracted by Friedrich Miescher in 1869 and is found inside the chromosomes of cells, carrying the instructions for building and maintaining organisms.

1. DNA
The Hereditary
Material

2. What is grandma
knitting?
Is it a sweater?
It seems like a ladder!
Oh!It’s me
BTW, Whoam I?

3. I’m DNA!

4. What is DNA?
Deoxyribonucleic acid, a molecule
contains the genes of living organisms
Main constituent of chromosome
Carrier of genetic information
Present in every living organism
Contains instructions an organism needs to develop,
reproduce and live
Inside eukaryotic cell and floats in the cytoplasm of
prokaryotic cells

5. Who discovered DNA?
German biochemist, Frederich Miescher in 1869
1953, James Watson, Francis Crick, Maurice Wilkins
and Rosalind Franklin figured out the structure of
DNA — a double helix — which they realized could
carry biological information

6. What is the structure
of DNA?
Made up of molecules, nucleotides, joined in
a chain by covalent bond and 2 separate
nitrogenous base strands
Each of it contains a phosphate and a sugar
group and a nitrogen base; Adenine,
Thymine, Guanine, Cytosine
It determine the genetic code and stores
biological information

10. References
http://www.livescience.com/37247-dna.html
https://en.wikipedia.org/wiki/DNA

11. By:
Eiman Rana
MYP-V
(Armstrong)
THANK YOU