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Bell Ringer 10/22/13

Bell Ringer 10/22/13. Respond to the following in your notes: Draw a nucleotide and label the parts (don ’ t cheat – see if you remember!) What is the purpose of PCR? (this was in your Ch. 9 HW) Leave the sheets on your desk alone for now – we will look at those in a bit. DNA Replication.

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Bell Ringer 10/22/13

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  1. Bell Ringer 10/22/13 Respond to the following in your notes: Draw a nucleotide and label the parts (don’t cheat – see if you remember!) What is the purpose of PCR? (this was in your Ch. 9 HW) Leave the sheets on your desk alone for now – we will look at those in a bit

  2. DNA Replication

  3. DNA Replication • Replication = DNA copies itself exactly • (Occurs within the nucleus) • Any mistake in copying = mutation

  4. A. Basic Facts of DNA Replication 1. Complementary base pairing makes replication possible C - G A - T

  5. A. Basic Facts of DNA Replication 2. One side of DNA molecule is a templatefor making the other side (strand)

  6. B. Process of DNA Replication • Uncoil & unzip DNA molecule • Enzyme (-ase) breaks weakHydrogen Bonds between bases

  7. B. Process of DNA Replication 2. Enzyme brings in complementary N-bases DNA Polymerase

  8. B. Process of DNA Replication 3. New hydrogen bonds form between nitrogenous bases of the template strand and the newly-forming daughter strand. DNA Replication Tutorial http://highered.mcgraw-hill.com/sites/9834092339/student_view0/chapter14/dna_replication.html

  9. C. Semi-conservative replication

  10. DNA vs. RNA - Structure

  11. DNA vs. RNA – Add’tl info

  12. RNA vs. DNA

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