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DSW

DSW. Suppose you start with A DNA strand: ACCGTCAC Write in the complementary DNA strand Transcribe the original DNA strand. DSW. Suppose you start with A DNA strand: ACCGTCAC Write in the complementary DNA strand ACCGTCAC TGGCAGTG Transcribe the original DNA strand UGGCAGUG.

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DSW

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  1. DSW Suppose you start with A DNA strand: ACCGTCAC Write in the complementary DNA strand Transcribe the original DNA strand

  2. DSW Suppose you start with A DNA strand: ACCGTCAC Write in the complementary DNA strand ACCGTCAC TGGCAGTG Transcribe the original DNA strand UGGCAGUG

  3. What is the purpose of DNA replication? • When and Where does DNA replication occur? • What is the purpose of Transcription? • Where does Transcription occur?

  4. translation • Once the mRNA is assembled, the mRNA strand moves out of the nucleus and into the cytoplasm • Proteins • Are made of amino acids • Amino acids are joined by peptide bonds • The shape of the protein affects its function • Enzymes are proteins

  5. What is produced during transcription? • a. RNA molecules • b. DNA molecules • c. RNA polymerase • d. proteins Ans: a

  6. translation • Codon • A genetic code that contains the information needed by the cell to perform a function • Arranged in a sequence of DNA • Genetic code is made of codons • One codon is 3 bases • A codon codes for an amino acid • AUG is the start codon • Page 303

  7. Translation • THE PROCESS OF ASSEMBLING PROTEINS • Translation and protein synthesis is the same thing • Number of steps depend on the length of the protein

  8. Translation • Steps 1. mRNA moves out of the nucleus and goes to a ribosome in the cytoplasm 2. Free floating tRNA carries the amino acid to the ribosome 3. The first codon is the start codon • What is that codon? Look on page 303 4. The ribosome moves down so another tRNA brings in another amino acid for the next codon 5. The process continues until the ribosome gets to a stop codon • What is the stop codon? • A gene is a region of DNA that codes for a protein

  9. Protein Synthesis • DNA replication • TACGCAATG • Transcription • ? • Translation • ?

  10. Protein Synthesis DNA: ATGCGTTAC • DNA replication • TACGCAATG • Transcription • AUGCGUUAC • Translation • Start-Arginine-Tyrosine

  11. Quick lab page 303 • Turn in analyze and conclude questions and answers before class ends

  12. Write 2 questions using the diagram ~1 remember or understand question ~1 apply or analyze question Include the answer for each question 

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