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Thursday, November 3, 2016 Test next Wednesday!
Cancer Reading Assignment Due Immortal Cancer Cells - #6 STAMP Cancer Sniffing Dog - #7 STAMP PLACE ON CORNER OF DESK Grab notes from entry table. Test next Wednesday!
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Bell-Ringer 11/7 Place your phone in a pocket!!!! Muahahahaha
Complete the DNA: The Molecule of Heredity paper. Complete the DNA Replication paper.
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What do all these organisms have in common?
Mushroom Jellyfish Diatoms Shark DNA Flower Panda Bear Algae Venus Fly Trap E. coli
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DNA We will describe the structure of DNA molecule, DNA replication, and the scientists who contributed to the research and discovery of DNA. I will create a complementary base pairs to the given DNA strand.
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What is DNA? https://www.youtube.com/watch?v=1YDTOcAVJrE
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DNA FUN FACTS
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600 Your DNA could stretch from the earth to the sun 600 times.
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99.9% We’re all 99.9 percent alike
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3 Billion = 3,000,000,000 The human genome contains 3 billion base pairs of DNA.
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3% Only 3% of your genes (DNA) are useful the rest of 97% are considered “Junk” DNA.
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50% Bananas and humans share about half of the same DNA which means humans are 50% identical to bananas.
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DNA scientists to know Rosalind Franklin – Discovered the structure of DNA using X-ray Diffraction
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DNA scientists to know James Watson and Francis Crick-
Created a 3D model of DNA and described the DNA as Double Helix and two strands that folds in twisted ladder.
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Erwin Chargaff (1950) 1950, formation of “Chargaff’s Rules” which are as follows: Number of adenine or A are always equal to the number of thymine or T Number of guanine or G are always equal to the number of cytosine or C
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DNA Base Pairing Rules Chargaff’s rule: % of A = % of T % of C= % of G
Adenine pairs with Thymine Guanine pairs with Cytosine A-T; G-C “Cars are parked in the Garage” “Apple grows on Trees”
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Find the complementary sequence to the following “A-A-T-C-C-G-A-T-A-G-C”
T-T-A-G-G-C-T-A-T-C-G C-C-A-G-G-A-C-T-C-G-C T-T-A-G-G-C-T-T-T-G-C A
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DNA Scientists
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What is the complimentary DNA strand: 5’ATGCCATAGCCT3’
Bell-Ringer 11/4 What is the complimentary DNA strand: 5’ATGCCATAGCCT3’
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11/2-PHONES IN POCKETS Glue the DNA Labeling paper into your journal, and begin working on it! QUIZ RE-TAKES Friday-Tuesday (BEFORE SCHOOL or AFTER SCHOOL) DNA SCIENTIST AND STRUCTURE QUIZ TOMORROW!
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DNA- Deoxyribonucleic Acid
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What does the shape of DNA look like?
or comb Ladder
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Structure of DNA The structure of DNA is known as Double Helix
The structure of DNA is known as Double Helix Which means that it is a Double strand folded in Twisted Ladder
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What is DNA? DNA= Genetic code of life
DNA is the Universal code, common to all living organisms. DNA contains Genetic information of an organism. Genes: Sections of DNA that codes for specific cell function.
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DNA is found in: Nucleus of Eukaryotes Chloroplast
Cytoplasm of Prokaryotes Mitochondria Chloroplast
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Parts of DNA
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“Peanut butter Sandwich”
Parts of a Nucleotide DNA belongs to the biomolecule: Nucleic Acid DNA is made of subunits called Nucleotide Which is made up of Phosphate group, Deoxyribose Sugar, and Nitrogenous Base. “Peanut butter Sandwich”
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Parts of a Nucleotide Nitrogenous Base Sugar Phosphate group
(Deoxyribose)
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If DNA looks like a ladder then…
What 2 parts makes the backbone of DNA? What parts make the rung? What bond (H-bond) holds the rungs together? backbone Rung
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Parts of DNA Phosphate group & Deoxyribose Sugar
The backbone of DNA ladder is made of: Phosphate group & Deoxyribose Sugar The rungs of DNA are made of: Nitrogenous Bases There are 4 nitrogenous bases: Adenine, Thymine, Guanine, Cytosine (A pairs with T and G pairs with C) The bases are held together by Hydrogen Bond
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Nitrogen bases= codes for our trait
There are 4 letters in the DNA sequence ATA CGC= nail protein
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DNA Base Pairing Rules- (Bottom left tab)
Chargaff’s rule: % of A = % of T % of C= % of G Adenine pairs with Thymine Guanine pairs with Cytosine A-T; G-C “Cars are parked in the Garage” “Apple grows on Trees”
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Questions?
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DNA Replication Replication= Copying
The DNA Replication model is known as Semi conservative Model Meaning you get 1OLD strand and 1 New strand Old New Old New
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DNA Replication Hydrogen bonds are unzipped by DNA helicase.
Replication fork-site of DNA unzipping DNA replication occurs in 5’ (prime) to 3’ (prime) direction. DNA polymerase pairs free nucleotides to each original unzipped strand.
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RESULT: Two identical strands of DNA
Leading Strand: Replication in the same direction as replication fork Lagging strand: Replication away from the replication fork Also known as Okazaki Fragment
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DNA Replication
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11/3-PHONES IN POCKETS FOR QUIZ!
Begin working on the Genes & Chromosomes warm-up, and glue into your journal. Cell Cycle Quiz Re-Takes: Today-Tuesday! DNA Replication Quiz on Monday!
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Phosphate Group: Green Deoxyribose Sugar: Purple Thymine: Yellow
DNA Replication Phosphate Group: Green Deoxyribose Sugar: Purple Thymine: Yellow Adenine: Pink Cytosine: Red Guanine: Blue
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