Biology Day 64. Tuesday, February 17 Wednesday, February 18, 2015

Transcription

1 Biology Day 64 Tuesday, February 17 Wednesday, February 18, 2015

2 Do#Now:' Video'Notes'8.3 ' 1. Write today s FLT! 2. Recall: The cell cycle is made up of G 1, S, G 2, and M phases. In which stage does DNA copy itself?! 3. What are the subunits (monomers) of DNA called?! 4. What is the complementary strand of DNA for the strand CTACGGAT?! 5. What two things make up the backbone of DNA?

3 Announcements' Upcoming' I'will'be'out'Mon.'2/23'at'a'

4 Announcements' Retakes'before'school'or'at'lunch' I'always'keep'the'higher'score'

5 Announcements' Quarter'3'ends'Friday,'April'10' Q3'Midterm' 'week'of'april'6'(right' arer'spring'break)' Students'who'have'70%'or'higher'on' their'tests'this'quarter'and'less'than' 5'missing'assignments'will'be'exempt'

6 Planner: Finish Study Guide 8.3 Get stamps! Table of Contents #6 14.Video Notes: Power Notes: Study Guide 8.3

7 Standard HS-LS 1-1: Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins which carry out the essential functions of life through systems of specialized cells. FLT I will be able to summarize the process of semiconservative DNA replication by completing 8.3 Power Notes

8 Video Notes 8.3: Copy These 1. What does RNA stand for? 2. List at least 2 differences between RNA & DNA. 3. What enzyme unzips DNA before it replicates? 4. What does DNA polymerase do?

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10 Video Notes 8.3: Copy These 1. What does RNA stand for? 2. List at least 2 differences between RNA & DNA. 3. What enzyme unzips DNA before it replicates? 4. What does DNA polymerase do?

11 Power Notes 8.3 Noise level 0 Copy down all bolded ideas Raise your hand to question/ comment Be prepared to pair-share

12 8.3: DNA Replication Key Concept: DNA replication creates identical DNA for every cell

13 Clip Watch the following clip and try to figure out what is happening

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15 Central Dogma of Molecular Biology Dogma = the primary basis or principles for a set of teachings Copy at the very top of the page:

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21 Identify the Structures 1. Sugar-phosphate backbone! 2. nitrogenous bases! 3. Original DNA strand! 4. New DNA strand

22 Process 1. Enzymes unzip the double helix in two directions at the same time

23 Process 2. Free nucleotides pair with the exposed bases on the original template strands

24 Process 3. DNA polymerase bonds the nucleotides together

25 Process 4. The 2 DNA that result are identical to the original; each molecule contains one original strand and one new strand

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28 Add at the bottom DNA replication is called semiconservative! Semiconservative = identical daughter strands have one strand of original strand DNA and new strand one new strand Two molecules of DNA

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30 Other Notes Daughter DNA are identical to the original because of base-pairing rules (A and T, G and C)! Replication is fast and accurate! DNA replication occurs in many places at once! DNA polymerase finds and corrects errors on new DNA

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32 CW Study Guide 2. Study for quiz!

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34 Biology Day 65 Tuesday, February 10 Thursday, February 12, 2015

35 BrainPOP: RNA 1. Write today s FLT! 2. is the name of the sugar molecule found in DNA.! 3. DNA is located in the.! 4. The complementary strand of DNA for GAGCTACGAT is.! 5. replication means that new DNA is ½ original DNA and ½ new DNA.! 6. is an enzyme that proofreads and corrects errors when replicating DNA.

36 Announcements' Upcoming' I'will'be'out'Mon.'2/23'at'a'

37 Announcements' Grading'period'ends'Fri.'2/27' Progress'reports''!' Retakes'before'school'or'at'lunch' I'always'keep'the'higher'score'

38 Announcements' Quarter'3'ends'Friday,'April'10' Q3'Midterm' 'week'of'april'6'(right' arer'spring'break)' Students'who'have'70%'or'higher'on' their'tests'this'quarter'and'less'than' 5'missing'assignments'will'be'exempt'

39 Planner: Finish Study Guide 8.4 Check Powerschool! Table of Contents #6 17.BrainPOP: RNA 18.Power Notes Study Guide 8.4

40 Standard HS-LS 1-1: Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins which carry out the essential functions of life through systems of specialized cells. FLT I will be able to distinguish between DNA and RNA & I will be able to identify and describe the three kinds of RNA by completing Power Notes 8.4.

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42 Power Notes 8.4 Noise level 0 Copy down all bolded ideas Raise your hand to question/ comment Be prepared to pair-share

43 8.4: Transcription Key Concept: Transcription converts a gene into a single-stranded RNA molecule

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45 Central Dogma of Molecular Biology 1. DNA! 2. Transcription! 3. RNA! 4. Translation! 5. Proteins

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49 DNA 1. Double-stranded! 2. Deoxyribose sugar! 3. A, C, T, G bases

50 RNA 1. Single-stranded! 2. Ribose sugar! 3. A, C, U, G bases

51 Add this:! RNA RNA = ribonucleic acid

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53 Types of RNA There are three types of RNA:! 1. Messenger RNA (mrna)! 2. Transfer RNA (trna)! 3. Ribosomal RNA (rrna)

54 Pair-Share-Respond 1. According to the central dogma, information flows from what molecules (in order)?! 2. What is the process of making RNA from DNA called?! 3. What are three distinguishing features of DNA?! 4. What are three distinguishing features of RNA?! 5. What are the three types of RNA?

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58 1. mrna If a DNA strand is ATTGCTCC! The complementary mrna strand will be UAACGAGG! Recall: complementary DNA would be TAACGAGG! What will the complementary mrna strand be for CCAGTTAAC?! Answer:! GGUCAAUUG

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72 Replication vs. Transcription Transcription and replication both involve complex enzymes and complementary base pairing! 2 Key Differences:! Replication copies ALL the DNA; transcription copies a gene! Replication makes 1 copy; transcription can make many

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74 8.4 Study Guide CW You may also work on your binder assignments

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