Week #5 Quarter 2 (11/12/13)
Homework: Labreport Due Nov19 one week!
To Do Today:
Lab report directions Due Nov 19
Finish coloring DNA
Video on Genetics and DNA summary
Fact of the Day
Today in Biology
Biology Learning Goal: Overview ofchapter 6 – Genes, DNA,Chromosomes and chromatids
Warm Up Question: notebook paper
How is DNA
Arranged?
Shape?
The right halfof the braincontrols the leftside of our bodymuscles, and theleft controls theright
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Week #5 Quarter 2 (11/13/13)
Homework: Labreport Due Nov19 one week!
To Do Today:
Finish video summary – turn into box
Begin notes on DNA
Organize notebook and check
Fact of the Day
Today in Biology
Biology Learning Goal: Overview ofchapter 6 – Genes, DNA,Chromosomes and chromatids
Warm Up Question:
1. In DNA adenine pairs with__ and guanine pairs with __
2. What makes up the DNAsides?
At the ocean'sdeepest point,due to immensepressure, aniron ball wouldtake more thanan hour to sinkto the oceanfloor.
HISTORY OFGENETICS ANDDNADEOXYRIBONUCLEIC ACID
DNAStructurehandout (s)
5
6
DNA
structure
DNA
Introduction to DNA
1. What is genetics?
2. 1/3 of the recipe for a human being is the same as a______.
3. 2/3 of our recipe is shared with ______.
4. Basic building block of life is the _____.
5. _____ carries the recipe for life.
6. What are genes?
7. What is genotype?
8. What is phenotype?
9. How long is all our DNA if we could stretch it out?
10. If we were to print a paper with A’s, T’s, G’s and C’smaking our genetic code how many pages would it be?How many letters?
Analysis of genetics and structure of DNA
Page 1
Genes Genetics and DNA video
DNA HISTORY
An experiment in 1928 by FrederickGriffith:
He removed DNA from one type ofbacteria & put it into a 2nd type ofbacteria.
The 2nd bacteria took on thecharacteristics of the 1st bacteria.
QUESTION # 1
WHAT DID GRIFFITH’S EXPERIMENTINDICATE ABOUT DNA?
AND THE ANSWER IS….
DNA CARRIES THE GENETICINFORMATION THAT DICTATES ANORGANISMS CHARACTERISTICS.
Page 31
THE STRUCTURE OF DNA
•In 1953, James Watsonand Francis Crick wereaccredited todiscovering thestructure of DNA.
•Watson, Crick, andMaurice Wilkins wereawarded the Nobel Prizefor Physiology andMedicine in 1962.
But should they havereceived the credit???
Page 31
Rosalind Franklin
•Franklin refined the techniqueof X-ray crystallography to studyDNA and produced the famousphoto 51.
•From photo 51 she determinedthat DNA had to be a doublehelix.
•Her partner, Maurice Wilkins,shared photo 51 with Watson &Crick, who published the resultsbefore Franklin.
•Franklin died in 1958.
DNA is wound up in tightchromosomes which arelocated in the nucleusIts shape is a twisted doublehelix
•DNA is geneticmaterial that carriesinformation about anorganism and ispassed from parentto offspring.(Blueprint of life)
•Found in the nucleusof cells.
•Tightly coiled DNAmakes chromatin &chromatin makeschromosomes.
•Every organism’s DNA isdifferent except clones &identical twins.
•DNA contains the geneticcode of the organism - theinstructions that tell thecell and the whole livingthing what proteins toproduce. The proteins thata cell makes control whatthat cell does - the cell'sfunction. This code isbased on the code fromthat organism's parents.
•DNA is made ofchemical buildingblocks callednucleotides. Thesebuilding blocks aremade of three parts:a phosphate group, asugar group and oneof four types ofnitrogen bases. Toform a strand of DNA,nucleotides are linkedinto chains, with thephosphate and sugargroups alternating.
The structure of DNA is atwisted double helix (twistedladder).
•
Adenine alwayspairs withThymine
A-T or T-A
Cytosine alwayspairs withGuanine
G-C or C-G
NitrogenBases
There are two kinds of nitrogen-containing bases - purines andpyrimidines.
Purines:
•Adenine and Guanine
•Purines are the larger of thetwo types of bases found inDNA
Pyrimidines:
•Cytosine and Thymine
•Adenine and guanine arefound in both DNA and RNA
Week #5 Quarter 2 (11/13/13)
Homework:Lab report DueNov 19 Tuesday
To Do Today:
Discuss notes
Handouts on page 16 and 17 -complete
Fact of the Day
Today in Biology
Biology Learning Goal: Overview ofchapter 6 – Genes, DNA,Chromosomes and chromatids
Warm Up Question: reflection!
Who are James Watson andFrancis Crick?
Who is Rosalind Franklin?
Eighty-fivepercent of allthe plantsand animalslive in thesea.
Handoutspg. 16andpg. 17complete by Monday