DO NOW You have ten minutes to finish up the graphing assessment from yesterday. I will call you by name to receive your packet. If you are done before the ten minutes is up… start reading in the text on pg 135

RNA The Other Nucleic Acid

DNA: Review Double stranded molecule Nucleotides = monomer base, phosphate, and deoxyribose Follows the base pair rule A and T C and G Contains the instruction manual for an organisms traits Contained in the nucleus of a cell

Genes Code within DNA for the traits of the organism Sequence of bases on DNA One gene = one protein… proteins determine traits Different proteins are determined by the different sequences of bases Ex/ CATCAT = purple hair, TACTAC = yellow hair

An analogy… Think of the BASES as LETTERS LETTERS form WORDS (genes) WORDS form SENTENCES (the traits of an organism) Endless combinations to form all living variations

DNA cannot do it alone! DNA trapped in the nucleus… Needs help getting the code out of the DNA and create protein RNA to the rescue!

RNA Ribonucleic Acid Single stranded Nucleotides = monomers Base (A, C, G, U), phosphate, ribose Follows base pair rule, except no thymine… uses URACIL instead DNA: A T A G C G RNA:

Function of RNA Carry and translate the message (code) in the DNA to make proteins 2 Types of RNA needed mRNA Messenger RNA: gets the code out of the nucleus tRNA Transfer RNA: translates the code into a protein

RNA vs. DNA structure

Amoeba Sisters: DNA vs. RNA https://www.youtube.com/watch?v=0Elo-zX1k8M