11/19/14 Starter: What do you think DNA is? 11/19/14 DNA Structure Notes Application/Connection:...
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Transcript of 11/19/14 Starter: What do you think DNA is? 11/19/14 DNA Structure Notes Application/Connection:...
11/19/14
Starter:
What do you think DNA is?
11/19/14
DNA Structure Notes
Application/Connection:
Building a DNA molecule
DNA Structure Notes 97 98
Practice: Notes
Exit:
Draw or write one thing you learned today from the notes.
November 19, 2014AGENDA
B.6 A. Students will Identify
and describe components of DNA while reading and
writing on notes and starting an activity.
1 Starter2. Notes3. DNA Molecule4. Exit
Date Lecture/ Activity/ Lab Page 10/15 Cell Transport and Homeostasis Term Notes 65-66 10/16 Osmosis in Cells Lab 67-6810/18 Observing Osmosis in Elodea 69-7010/21 Cell Analogies Poster 71-7210/24 Cell Transport Cards 73-7410/25 Experimental Design 75-7610/28-29 Photosynthesis Notes 77-7810/31 Cellular Respiration and Photosynthesis 79-8011/1 Cellular Respiration Notes 81-8211/6 Cellular Respiration Lab 83-8411/7 Photosythesis/Cellular Respiration 85-8611/13 DNA notes 87-88
Table of Contents
Date Lecture/ Activity/ Lab Page10/14 Eukaryotic and Prokaryotic Poster 67-68 10/15 Osmosis Lab 69-7010/16 Osmosis Lab Day II 71-7210/17 Osmosis Lab Day III and Quiz 73-7410/20 Cell Analogies Poster 75-7610/21 Experimental Design 77-7810/22 Test Review 79-8010/27-28 Photosynthesis Notes 81-8210/29 Photosynthesis Ws 83-8411/3 Cellular Respiration Notes 85-8611/4 Photosynthesis in Elodea 87-8811/5 Cellular Respiration in Yeast Lab 89-9011/6 Exercise Lab 91-9211/7 Photosynthesis Writing 2 93-9411/10 Photosyntheis/Cellular Respiration Poster 95-96
Table of Contents
11/19 DNA notes 97-98
DNAStructur
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DEOXYRIBONUCLEIC ACID
STORES AND PASSES ON GENETIC INFORMATION FROM ONE GENERATION TO THE NEXT.
DISCOVERERS
a. James Watson-American biologistb. Francis Crick- British physicistc. Maurice Wilkins- British scientist d. Rosalind Franklin- British scientist (only woman, died before the noble prize was given)
DNA StructureDNA consists of two molecules that are
arranged into a ladder-like structure called a Double Helix.
A molecule of DNA is made up of millions of tiny subunits called Nucleotides.
Each nucleotide consists of:1. Phosphate group2. Pentose sugar3. Nitrogenous base
Nucleotides
Phosphate
Pentose
Sugar
Nitrogenous
Base
NucleotidesThe phosphate and sugar form the
backbone of the DNA molecule, whereas the bases form the “rungs”.
There are four types of nitrogenous bases.
DNA StructureBecause of this complementary base
pairing, the order of the bases in one strand determines the order of the bases in the other strand.
NucleotidesEach base will only bond with one
other specific base.
Adenine (A)Thymine (T)
Cytosine (C)Guanine (G)
Form a base pair. Purines
Form a base pair. Pyrimidines
Nucleotides
A
Adenine
T
Thymine
G
Guanine
C
Cytosine
G
G
A
T
T
A
A
C
T
G
C
A
T
C
DNA StructureTo crack the genetic code found in
DNA we need to look at the sequence of bases.
The bases are arranged in triplets called codons.
A G G - C T C - A A G - T C C - T A GT C C - G A G - T T C - A G G - A T C
DNA StructureA gene is a section of DNA that codes for a
protein.
Each unique gene has a unique sequence of bases.
This unique sequence of bases will code for the production of a unique protein.
It is these proteins and combination of proteins that give us a unique phenotype.
DNA ReplicationIs the process by which a DNA molecule is
duplicated into identical DNA molecules. It occurs in the nucleus of the cell
STEPS IN REPLICATIONDuring replication, the DNA ladder separates,
or unzipsFree nitrogen bases “float” in the nucleus pair
up with the nitrogen bases on each half of the DNA
Two new DNA molecules are formed
Protein
DNA
Gene
Trait
SUMMARY QUESTIONDraw one thing you learned today from
the notes.
11/19/14
Starter:
What do you think DNA is?
11/19/14
DNA Structure Notes
Application/Connection:
Building a DNA molecule
DNA Structure Notes 97 98
Practice: Notes
Exit:
Draw or write one thing you learned today from the notes.