1. DNA and RNA

2. DNA Deoxyribonucleic Acid Genetic code of life
Located inside the nucleus
NEVER leaves the nucleus
Double Stranded
Shape of DNA is a double helix
Made of nucleotides

3. Structure of DNA
Contains:
Phosphate
Sugar
Nitrogen Base

4. Structure of DNA
Adenine
Thymine
Guanine
Cytosine
Deoxyribose

5. DNA Base Pairing Rules Adenine pairs with Thymine
A T
Guanine pairs with Cytosine
G C

6. DNA Song We love DNA Made of nucleotides Sugar, phosphate, and a base
Bonded down one side
Adenine and thymine
Make a lovely pair
Cytosine without guanine
Would feel very bare
D, D, DNA
Different set of genes
Look inside the nucleus
For instructions to make proteins
It’s the code of life
And the genetic makeup of
All you have inside

7. DNA Base “Round Up” Find a match for the DNA base you were given
Remember your DNA base pairing rules

8. “Round Up Yourself” What does each DNA base pair with?
G __________________________
T ___________________________
C ___________________________
G ___________________________
A ____________________________

9. Each base pair is connected by a hydrogen bond
Backbone has covalent bonds

10. RNA Ribonucleic Acid Makes a copy of the code of life (DNA)
Located outside the nucleus
Single stranded
3 Types of RNA: Messenger, Transfer, Ribosomal
Made of nucleotides

11. Structure of RNA Adenine URACIL Guanine Cytosine RIBOSE
DNA does not have Uracil

12. RNA Base Pairing Rules Adenine pairs with Uracil
A U
Guanine pairs with Cytosine
G C

13. RNA Base “Round Up” Find a match for the RNA base you were given
Remember your RNA base pairing rules

14. “Round Up Yourself” What does each RNA base pair with?
G __________________________
A ___________________________
C ___________________________
U ___________________________
A ____________________________

15. 3 Types of RNA
Messenger RNA (mRNA) – carries genetic information from nucleus to cytoplasm
Transfer RNA (tRNA) – carries amino acids from cytoplasm to ribosomes
Ribosomal RNA (rRNA) – consists of RNA nucleotides in globular form

16. DNA vs. RNA DNA RNA Sugar Deoxyribose Ribose Nitrogen Base Thymine
Uracil
Structure
Double Stranded
Single Stranded