1. DNA Function
Chp. 10
Biology

3. Background Vocab Hemoglobin Insulin RNA- (ribonucleic acid)
Plays several roles in the manufacture of proteins
Made of nucleotides
Nitrogenous bases A , U, C, and G
A gene is a long section of a DNA molecule whose sequence of building blocks specifies the sequence of amino acids in a particular protein.
Protein- fundamental component of living cells
Enzymes
Hormones
Antibodies
Hemoglobin
Insulin

4. How does DNA work DNA (nucleic acid)  RNA 
Amino Acids – building blocks of Proteins
Protein  Do a job (perform a function)
Analogy to remember what’s going on, build a house
DNA is the blue prints (instructions)
Amino Acids are the lumber
Proteins are the house…

5. How are genes Expressed? Protein Synthesis from DNA- Chp. 10

7. Transcription vs. Translation
Transcription in the nucleus
Make mRNA from DNA
DNA  mRNA
Translation in the cytoplasm
Make Proteins at the ribosome
mRNA  proteins
“translate a language”
nucleic acid  amino acid

8. ? ? Translation Transcription
Translating nucleic acid language to amino acid language ?
Transcription

10. Link to Good Video
“Wikipedia. Is the best thing ever. Anyone, in the world, can write anything they want about any subject. So you know you are getting the best possible information.”
Who said this?

11. 1.__________ 3. 4. 2.
5. enzyme?
mRNA
DNA

12. Quiz time! G Translation A- Amino Acid B- tRNA C- Anticodon D- Codon
E- mRNA
F- Ribosome (rRNA)
G- Polypeptide Chain or protein
Picture? A? B? C? D? E? F? G?
Quiz time! G

13. Quiz time!
1a. 8. 6. 4.
3.__ 5. 2. 7.
1b.