happy friday bellwork: on your bellwork write “study for quiz” and turn it in

HAPPY FRIDAY

Bellwork:On your bellwork write “Study for Quiz” and

Turn it in.

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

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!)

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.

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.

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

Tongue Rolling:

CAN roll the tongueis dominant to cannot

Eyelash Length:

Long eyelashes is dominant toshort eyelashes

Lip Thickness:

Thick lipsare dominant to thin lips

Hitchhiker’s Thumb:

Hitchhiker’s thumb is dominant tostraight thumb

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?

GENETIC NOTECARDSPERIODS 4 & 5

DUE FRIDAY (12/12/14)

DNA PROFILING(DNA fingerprinting)

WHAT IS DNA PROFILING?

A technique used by scientists to distinguish between individuals of

the same species using only samples of their DNA

STAGES OF DNA PROFILING

Stage 1: Cells are

broken down to release

DNA

STAGES OF DNA PROFILING Stage 2: The DNA is cut into fragments using restriction

enzymes, which cut the DNA at a specific base sequence

STAGES OF DNA PROFILING

Stage 3:Fragments are

separated on the basis of size using a process called gel electrophoresis.

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.

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.

STAGES OF DNA PROFILING

Stage 4:The pattern of fragment distribution is then analyzed. AKA where the bands are on the gel

DNA SAMPLES CAN BE OBTAINED FROM BLOOD, HAIR, URINE, SALIVA, SKIN, SEMEN, OR VAGINAL SECRETIONS.

USES OF DNA PROFILING

DNA profiling is used to solve crimes and medical problems

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:

WAS THE SUSPECT AT THE CRIME SCENE?

Suspects Profile

Blood sample from crime scene

Victims profile

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

BABY DADDY?

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.

IS THIS MAN THE FATHER OF THE CHILD?

Mother Child Man

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!