Exam 3

Question 1

restiction enzymes

Answer 1

cut DNA at specific sites

Question 2

golden rice carries agents that cause it to synthesize

Answer 2

beta carotene

Question 3

T o F: sticky ends are the single stranded regions at end of DNA fragments

Answer 3

true

Question 4

benefits of transgenetic crops include

Answer 4

all choices

Question 5

transgenic animals used for

Answer 5

all the above

Question 6

valuable contributions of recombinant technology include

Answer 6

all choices

Question 7

before recombinant DNA techniques, HGH was

Answer 7

recovered from pituitary glands from human cadavers

Question 8

embryonic stem cells

Answer 8

are pluripotent

Question 9

adult stem cells have been used to treat leukemia

Answer 9

multipotent

Question 10

gene therapy

Answer 10

attempts to provide patients with normal copies of mutant genes

Question 11

HD transgenic mice

Answer 11

are used to study brain structure during early stages of disease

Question 12

T o F: HGH can be isolated from cow milk

Answer 12

True

Question 13

to produce herbicide resistant transgenic crops

Answer 13

bacterial gene inserted into plant genome

Question 14

before biotechnology was used the main problem with clotting factor isolated from donated blood was

Answer 14

contamination by HIV

Question 15

T o F: plasmids are circular DNA molecules present in many bacteria

Answer 15

T

Question 16

T o F: pigs that contain human HLA genes can potentially be used for organ transplants

Answer 16

T

Question 17

T o F: a trangenic organism is an animal or plant that carries a gene from another species

Answer 17

T

Question 18

Genetic testing can be used to identify which of the following

Answer 18

all choices

Question 19

Prenatal genetic testing is preformed

Answer 19

to detect genetic disorders and birth defects of the developing fetus

Question 20

ultrasound is a

Answer 20

noninvasive technique used to image the fetus

Question 21

ultrasound can aid in diagnosis of

Answer 21

Trisomy 21

Question 22

which of the following is false about CVS

Answer 22

it involved recovering fetal cells from the mothers blood

Question 23

this type of testing is used to test unaffected members

Answer 23

carrier testing

Question 24

30 year old man with history of DH should get what testing done?

Answer 24

presymptomatic testing

Question 25

amnioscentisis is recommended when the mother is 35 years or older because

Answer 25

the risk of habving a child with chromosomal abnormality increases

Question 26

recovering fetal cells present in the mothers blood can be difficult becuase

Answer 26

only 1 out of every 100,000 is fetal

Question 27

preimplantation genetic diagnosis

Answer 27

can be used to check genetic abnormalities before implantation

Question 28

what is mode of inheritance for PKU

Answer 28

autosomal recessive

Question 29

what is genetic defect for PKU

Answer 29

a mutation in PAH inactivates the phenylalanine more rapidy

Question 30

a women with PKU becomes pregnant. she should

Answer 30

avoid phenylalanine

Question 31

since adult polycystic kidney disease is a

Answer 31

dominant trait

Question 32

all are conditions that allow population screenings except

Answer 32

There must be a cure for the disease

Question 33

tay sachs is a fatal __ trait

Answer 33

autosomal recessive

Question 34

T o F: Congress passed a law establishing screening programs for sickle cell

Answer 34

true

Question 35

multifactorial traits are affected by

Answer 35

genetics and environment

Question 36

ability to taste PCU

Answer 36

non tasters are homozygous for the gene

Question 37

supertasters for PTC

Answer 37

all choices

Question 38

all choices implicate cancer except

Answer 38

exposure to PKU

Question 39

all are autoimmune disorders except

Answer 39

breast cancer

Question 40

sickle cell is due to a

Answer 40

large deletion

Question 41

T o F: endoxifen is a drug with breast cancers

Answer 41

F

Question 42

carriers of sickle cell are resistant to

Answer 42

malaria

Question 43

short 5- HTT

Answer 43

more at risk to be depressed

Question 44

autoimmune disease and infection

Answer 44

usually long time between

Question 45

single nucleotide polymorphosms

Answer 45

consist of one nucleotide difference

Question 46

DNA fragments are separated in an aragose gel based on

Answer 46

size, with shorts DNA fragment traveling the furthest

Question 47

PCR is a valuable tool for DNA forensics

Answer 47

allows the generation of DNA profiles from very small amounts of DNA

Question 48

All are possible sources of DNA except

Answer 48

mature red blood cells

Question 49

Analysis of STRS show

Answer 49

the more alleles analyzed, , the rater the combinations befcome

Question 50

Combined DNA index system

Answer 50

uses a panel of 13 STRS

Question 51

2 types of testing typically offered to trace one'e ancestry

Answer 51

mitochondrial DNA and Y chromosme testing

Question 52

T o F: 2 common techniques are restriction fragment length polymorphism analysis and the polymerase chain reaction

Answer 52

T

Question 53

T o F: Dna profiles can be prepared from small sample

Answer 53

T

Question 54

DNA profile analysis has led to the release of individuals who were wrongly convicted

Answer 54

T

Question 55

Intelligence

Answer 55

multifactorial trait

Question 56

Which one about Spina biffida is true?

Answer 56

increased risk of another child with it

Question 57

fingerprints are

Answer 57

unaffected by nutrition of mother

Question 58

in humans, obesity

Answer 58

multifactorial trait

Question 59

numerical calculation of same trait in both members of twins is

Answer 59

concordance

Question 60

complex traits

Answer 60

wide range of phenotypes

Question 61

T o F: for pregnant women a diet deficient in ascorbic acid has led to spin bifid a

Answer 61

F