HAPPY FRIDAY Bellwork: On your bellwork write “Study for Quiz” and Turn it in.
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Transcript of HAPPY FRIDAY Bellwork: On your bellwork write “Study for Quiz” and Turn it in.
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HAPPY FRIDAY
Bellwork:On your bellwork write “Study for Quiz” and
Turn it in.
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HUMAN PEDIGREE – A FAMILY TREE PROJECTEssential Question: “Why do offspring resemble both of their parents?”
REQUIREMENTS FOR PEDIGREE POSTER SIZE: Smallest dimensions = 11 X 17 TITLE: Family Name KEY: Trait(s) & Gender Symbols FAMILY MEMBERS: First Names CONNECTEDNESS: Lines connecting people in the family
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EXTRA CREDIT!!! - BRING UP YOUR SEMESTER AVERAGE TO PASSING OR A HIGHER LETTER GRADE!
Required: Siblings/You Parents Grandparents (0 points extra!)
Extra Credit: Cousins/Siblings/You
Parents/Aunts/Uncles Grandparents (10 points extra!)
Extra Credit: Cousins/Siblings/You
Parents/Aunts/Uncles Grandparents/Great Aunts/Great Uncles Great Grandparents
(20 points extra!)
Going beyond Great, great grandparents will not receive further extra credit. (0 points extra!)
Make a cupcake family tree, a 3D model, or a
YouTube Video, etc… Let your imagination run WILD!!! (10 points extra!)
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OVER THE BREAK…….
Since some of you will see family
members, see who has what and
keep track of them. Choose ONE
TRAIT from the following list that
you want to follow along your family
tree.
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This activity is adaptable to everyone’s family situation. If you have any questions
about how to draw a pedigree for your particular
family, please see me.
WARNING! Not completing the project will leave you in jeopardy of failing the 3rd Six-
Weeks/Semester.
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CAN YOU IDENTIFY YOUR OWN GENOTYPES AND PHENOTYPES?
Hairline:
Widow’s peak is dominant tostraight hairline
Eye Shape:
Almond eyes is dominant to round eyes
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Tongue Rolling:
CAN roll the tongueis dominant to cannot
Eyelash Length:
Long eyelashes is dominant toshort eyelashes
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Lip Thickness:
Thick lipsare dominant to thin lips
Hitchhiker’s Thumb:
Hitchhiker’s thumb is dominant tostraight thumb
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STANDARD: DESCRIBE HOW TECHNIQUES SUCH AS DNA FINGERPRINTING…ARE USED TO STUDY THE GENOME OF ORGANISMS
(B.6H)
ESSENTIAL QUESTION: HOW CAN DNA FINGERPRINTING BE
APPLIED TO STUDY ORGANISMS?
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GENETIC NOTECARDSPERIODS 4 & 5
DUE FRIDAY (12/12/14)
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DNA PROFILING(DNA fingerprinting)
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WHAT IS DNA PROFILING?
A technique used by scientists to distinguish between individuals of
the same species using only samples of their DNA
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STAGES OF DNA PROFILING
Stage 1: Cells are
broken down to release
DNA
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STAGES OF DNA PROFILING Stage 2: The DNA is cut into fragments using restriction
enzymes, which cut the DNA at a specific base sequence
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STAGES OF DNA PROFILING
Stage 3:Fragments are
separated on the basis of size using a process called gel electrophoresis.
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STAGES OF DNA PROFILING
DNA is negatively charged so it is attracted to the positive end of the gel.
The shorter DNA fragments move faster than the longer fragments.
DNA is separated on basis of size.
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STAGES OF DNA PROFILING
A radioactive material is added which combines with the DNA fragments to produce a fluorescent image.
A photographic copy of the DNA bands is obtained.
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STAGES OF DNA PROFILING
Stage 4:The pattern of fragment distribution is then analyzed. AKA where the bands are on the gel
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DNA SAMPLES CAN BE OBTAINED FROM BLOOD, HAIR, URINE, SALIVA, SKIN, SEMEN, OR VAGINAL SECRETIONS.
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USES OF DNA PROFILING
DNA profiling is used to solve crimes and medical problems
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EXAMPLE
A violent murder occurred. The forensics team retrieved a blood
sample from the crime scene. They prepared DNA profiles of the blood
sample, the victim and a suspect as follows:
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WAS THE SUSPECT AT THE CRIME SCENE?
Suspects Profile
Blood sample from crime scene
Victims profile
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SOLVING MEDICAL PROBLEMS
DNA profiles can be used to determine whether a particular person is the parent of a child.
A childs paternity (father) and maternity(mother) can be determined.
This information can be used in• Paternity suits• Inheritance cases• Immigration cases
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BABY DADDY?
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EXAMPLE: A PATERNITY TEST
By comparing the DNA profile of a mother and her child it is possible to identify DNA fragments in the child which are absent from the mother and must therefore have been inherited from the biological father.
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IS THIS MAN THE FATHER OF THE CHILD?
Mother Child Man
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PRACTICE, PRACTICE, PRACTICE!
You have the rest of the period to complete analysis worksheets.
The worksheet is due at the end of the period.
Yes, it is for a grade!