1. RNA Structure Date: 1/9/06 Day A Objectives Identify the role of RNA
Compare RNA with DNA

2. DNA Decoding RNA is made up of four components 1. Phosphate
2. Sugar (Ribose, not Deoxyribose)
3. Nitrogen Bases (A, U, C, G- instead of having Thymine RNA contains Uracil
4. Hydrogen bonds between the two nucleotides

3. RNA Structure RNA is called Ribonucleic Acid
RNA is the principle molecule that carries out the instructions coded in DNA
RNA is considered a macromolecule
RNA has three different types:
1. mRNA (messenger RNA- mailman)
2. rRNA (ribosomal RNA- the factory)
3. tRNA (transfer RNA- deliveryman)

4. Comparing DNA with RNA DNA Deoxyribonucleic Acid Deoxyribose Sugar
Uses thymine (A=T, C=G)
Only found in nucleus
One type
Master copy
RNA
Ribonucleic Acid
Ribose Sugar
Uses Uracil (A=U, C=G)
Can move from nucleus to cytoplasm
Three types (mRNA, rRNA, tRNA)
Blueprint

5. Are the proteins where the assembly of the amino acids takes place
Forms Of RNA
mRNA
rRNA
tRNA
Name
Messenger RNA
Ribosomal RNA
Transfer RNA
Role
Transcribes the DNA into RNA by changing the T into U everything else is the same
Are the proteins where the assembly of the amino acids takes place
The delivery man who brings the proper amino acids for the sequences of RNA
Found In Cell
Nucleus/ cytoplasm
Cytoplasm
Nickname
mailman
factory
Delivery man

6. Transcription Transcription: Is the process by which RNA is made
In transcription part of the nucleotide sequence of DNA molecule is copied into RNA
DNA acts as template for RNA,
A template is a pattern, or guide, from which a copy can be made
MAJOR COMPONENT
RNA Polymerase

7. RNA Polymerase Is an enzyme the binds directly to a molecule of DNA
RNA Polymerase produces a strand of RNA
One nucleotide at a time
RNA turns all T U
Example: AACT 
UUGA
It gives it its complementary pair without the T’s

8. RNA Polymerase Example #2 DNA strand , give the complementary strand
AATCGGCATTACGAACTACCGA
TTAGCCGTAATGCTTGATGGCT
From the Original Strand give the RNA
UUAGCCGUAAUGCUUGAUGGCU
So RNA is the some pattern as the complementary strand with T replacing U

9. RNA as a Message
First, single sequence in DNA may be copied again and again
Second, by making RNA, the cell is able to keep its DNA in reserve controlling access to it and carefully regulating its use an dreplication

10. QUIZ Original Strand:CGCCTGACTAGGACATACGGG Complementary Strand:?
RNA strand: ?
Answer
Complementary Strand: GCGGACTGATCCTGTATGCCC
RNA Strand: GCGGACUGAUCCUGUAUGCCC