A. What is protein synthesis? protein - Mrs. Alkire's ... · Protein Synthesis Chapter 8 A. What is...

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Protein Synthesis Chapter 8 A. What is protein synthesis? 1. Also called gene expression 2. Central dogma of molecular biology: information flows from DNA → RNA → proteins (Defined by Francis Crick) 3. So…a section of DNA (gene) is designed to create a specific protein B. RNA 1. What is RNA? a. Ribonucleic Acid b. Acts as a messenger between DNA and ribosomes c. Gives ribosomes instructions for making proteins 2. Structure of RNA a. Like DNA, made up of a long chain of nucleotides b. Unlike DNA, RNA is single stranded c. Nucleotide is different i. Phosphate is the same

Transcript of A. What is protein synthesis? protein - Mrs. Alkire's ... · Protein Synthesis Chapter 8 A. What is...

Page 1: A. What is protein synthesis? protein - Mrs. Alkire's ... · Protein Synthesis Chapter 8 A. What is protein synthesis? 1. Also called gene expression 2. Central dogma of molecular

Protein SynthesisChapter 8

A. What is protein synthesis?1. Also called gene expression2. Central dogma of molecular biology: information flows from DNA → RNA → proteins

(Defined by Francis Crick)3. So…a section of DNA (gene) is designed to create a specific protein

B. RNA

1. What is RNA?a. Ribonucleic Acidb. Acts as a messenger between DNA and ribosomes

c. Gives ribosomes instructions for making proteins

2. Structure of RNAa. Like DNA, made up of a long chain of nucleotidesb. Unlike DNA, RNA is single strandedc. Nucleotide is different

i. Phosphate is the same

Page 2: A. What is protein synthesis? protein - Mrs. Alkire's ... · Protein Synthesis Chapter 8 A. What is protein synthesis? 1. Also called gene expression 2. Central dogma of molecular

ii. Sugar – ribose (instead of deoxyribose in DNA)

iii. Bases – adenine, cytosine, guanine and uracil (instead of thymine)

- Cytosine-Guanine (C-G)- Adenine-Uracil (A-U)

Structure of

RNA

Two steps in Protein SynthesisDNA

RNA

Protein

Translation

Transcription

Page 3: A. What is protein synthesis? protein - Mrs. Alkire's ... · Protein Synthesis Chapter 8 A. What is protein synthesis? 1. Also called gene expression 2. Central dogma of molecular

Two steps in Protein Synthesis

DNA DNA Mutation

RNA RNA Mutation

Protein Protein with a different shape

(won’t work)

Translation

Transcription


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