2. Nucleic Acids

3. Nucleic Acid Basics Contain instructions to build proteins 2 types: – DNA – RNA Composed of smaller units called nucleotides – Monomer: Nucleotide – Polymer: Nucleic acid

4. Nucleotide Structure Three parts – Sugar molecule – Phosphate group – Nitrogen base (A, T, C, or G) Nucleotides combine to make nucleic acids Nucleotide arrangement determines protein created

5. Monomers link to make polymers! Nucleic Acids Monomer = Nucleotide Polymer = Nucleic acid How many nucleotides are pictured? Six What is this chain of nucleotides called? Nucleic acid

7. DNA Double Helix: 2 chains of nucleotides Four DNA bases: Adenine, thymine, cytosine, guanine – A pairs with T – C pairs with G DNA stores the info required to make a protein Gene: section of DNA that codes for a protein T C G A C

9. Predict the nucleotides to fill in this DNA chain

10. RNA Single chain of nucleotides RNA bases: Adenine, uracil, cytosine, guanine Job: – 1) Make a copy of the DNA code – 2) Deliver the copy to a ribosome – 3) Ribosome assembles the protein U A C U G