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RNA and Protein Synthesis

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Presentation on theme: "RNA and Protein Synthesis"— Presentation transcript:

1 RNA and Protein Synthesis

2 I. RNA Formed from nucleotides Single stranded
Uracil instead of thymine Sugar  Ribose Copies the DNA info for protein synthesis

3 3 Types of RNA: rRNA (ribosomal): help make up ribosome
mRNA (messenger): carries the DNA info from nucleus to ribosome tRNA (transfer): brings amino acids to ribosomes to build proteins

4

5 RNA vs DNA

6 http://images. encarta. msn

7 II. Protein Synthesis A. Transcription:
The DNA code is transcribed (copied) into mRNA in the nucleus

8 B. mRNA moves into the cytoplasm, attaching to a ribosome

9 Translation: Each codon of mRNA selects a tRNA with a specific amino acid
Ribosome reads the mRNA and joins amino acids to form a protein (polypeptide chain)

10 E. After delivering its amino acid, tRNA picks up another amino acid

11

12 From Gene to Protein

13 A Review of Protein Synthesis


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