1. RNA

2. Gene Expression
Process by which genes control the traits of an organism
Results in the making of proteins by transcription & translation

3. Role of RNA A disposable copy of a section of DNA
The working copy of a gene
Main job is to produce proteins (By linking amino acids together)
DNA is the instructions, RNA carries them out

4. Types of RNA Messenger RNA (mRNA)- carries copies of the gene
Ribosomal RNA (rRNA) – found in ribosome to help assemble proteins
Transfer RNA (tRNA) – carries amino acids to the ribosome

5. Structure of mRNA

6. Comparing RNA & DNA

7. Comparing RNA & DNA Differences Sugar is ribose, not deoxyribose
RNA is single stranded
Uracil (U) replaces Thymine(T)
Similarities
Made of long chain of nucleotides
Phosphate
5-carbon pentose sugar
Nitrogenous bases A, C and G