1. Structure and Composition
DNA is sometimes called "the blueprint of life" because it contains the code, or instructions for building and organizing and ensuring that organism functions correctly.

2. DeoxyriboNucleic Acid
DNA is composed of subunits called nucleotides, strung together in a long chain
Each nucleotide consists of: a phosphate, a sugar (deoxyribose), and a base

3. Bases Bases come in two types: pyrimidines (cytosine and thymine)
and purines
(guanine and adenine)

4. The sugar and phosphates make up the "backbone" of the DNA molecule.

5. The rungs of the ladder are composed of nucleotides.
The shape of the DNA molecule is a double-stranded helix (like a twisted ladder).
The sides of the ladder are composed of alternating sugars (deoxyribose) and phosphates.
The rungs of the ladder are composed of nucleotides.
James Watson & Francis Crick

6. Base Pair Rule
Nucleotides pair in a specific way - called the Base-Pair Rule
Adenine always pairs
with Thymine (A-T)
Guanine always pairs
with Cytosine (C-G)

7. Base Pair Rule

8. A -A-T-G-T-A-T-A-C-A-A-G-G-C-A-T
Here are some bases of DNA:
A -A-T-G-T-A-T-A-C-A-A-G-G-C-A-T
Now match them with their complementary bases.

10. RNA RNA is like DNA It stands for Ribonucleic Acid
It’s used to make proteins, whereas DNA contains the information of life

11. What are some differences?

12. What are some Differences?
DNA
RNA
Double stranded
Single Stranded
Sugar is deoxyribose
Sugar is ribose
Uses the base Thymine (T)
Instead of Thymine,
it uses Uracil (U)