UNIT 2 Test

Question 1

A process that involves removing and analyzing part of the placenta is known as?

Answer 1

Chorionic villus sampling

Question 2

What is the difference between a screening and a diagnositic test for fetal health

Answer 2

Screening tests look at overall risk that a child will have a genetic disorder and this risk is assessed by looking at test results, age.

Diagnostic tests provide a definitive answer or diagnosis about whether a child will be born with a genetic disorder

Question 3

Which of the following are examples of screening tests

Answer 3

NT ultrasounds and maternal serum screening

Question 3

Why is multifactorial important in twins

Answer 3

they have the same genes, but environment can also influence it

Question 4

Similarities between amniocentesis and chorionic villus sampling

Answer 4

Both diagnostics identify a specific diagnosis, and require ultrasound

Question 5

Duchenne Muscular Dystrophy

Answer 5

Single Gene (X-linked recessive)

Question 6

Cystic Fibrosis

Answer 6

SIngle Gene (Autosomal recessive)

Question 7

Huntington’s Disease

Answer 7

Single Gene (Autosomal Dominant)

Question 8

Down Syndrome

Answer 8

Chromosomal (Trisomy 21)

Question 9

Leber Hereditary Optic Neuropathy

Answer 9

Mitochondrial

Question 10

Alzheimer’s Disease

Answer 10

Multifactorial

Question 11

Hemophilia

Answer 11

Single Gene (X-linked recessive)

Question 12

Edwards Syndrome

Answer 12

Chromosomal (Trisomy 18)

Question 13

Kearns-Sayre Syndrome

Answer 13

Mitochondrial

Question 14

Heart Disease

Answer 14

Multifactorial

Question 15

Steps of PCR

Answer 15

1.Denature
2. Decrease temperature (Annealing)
3. Put Everything in
4. Extend the DNA
5. Make millions of copies

Question 16

Steps of Gel Electrophoresis

Answer 16

1. Prepare the samples
2. Prepare the gel and buffer
3. Load samples on the negative side
4. Electrophoresis (run the gel)
5. Visualize and document bands

Question 17

Which of these vectors match the given situation

Answer 17

Adeno-Associated Virus

Question 18

What cuts the TSR2

Answer 18

haeIII

Question 19

What fragments does that specific enzyme cut

Answer 19

Blunt

Question 20

What can a genetic counselor not do?

Answer 20

Diagnose you

Question 21

How is PKU treated?

Answer 21

Proper Nutrition (a low-phenylalanine diet)

Question 22

A genetic counselor would put together a pedigree to diagnose whether or not a child has a genetic disorder (T or F)

Answer 22

False