Final Exam

Question 1

Genetic makeup is the same as

Answer 1

Genotype

Question 2

DNA stands for

Answer 2

Deoxyribonucleic acid

Question 3

If B represents black and b represents red and B.B. is the homozygous dominant condition, what would you get if you crossed a bb and a bb individual

Answer 3

All red

Question 4

A red female and a white male shorthorn produce a roan offspring this is an example of

Answer 4

Codominance

Question 5

Having matching alleles at a given point in the chromosome is said to be

Answer 5

Homozygous

Question 6

The process of cell division

Answer 6

Mitosis

Question 7

The expression of one gene is influenced by the presence of another describes

Answer 7

Epistasis

Question 8

The average gestation length in cattle is

Answer 8

281 days

Question 9

The average gestation length in sheep and goats is

Answer 9

150 days

Question 10

The average gestation length in pigs is

Answer 10

115 days

Question 11

The usual genetic effect of outbreeding (crossbreeding) is

Answer 11

Increase heterozygosity

Question 12

A general term for the act of giving birth is properly referred to as

Answer 12

Parturition

Question 13

Animals mates together which are from two different breeds are

Answer 13

Crossbred

Question 14

Ovaries produce

Answer 14

Ova

Question 15

The average length of estrous cycle in cattle is

Answer 15

21 days

Question 16

Difficulty giving birth is

Answer 16

Dystocia

Question 17

_____ is the measure of reliability associated with an EPD

Answer 17

Accuracy

Question 18

Refers to a situation we’re the same or many of the same genes control two traits

Answer 18

Genetic correlation

Question 19

This structure is considered the “birth canal” and separates the external environment from the internal environment

Answer 19

Vagina

Question 20

Site of fertilization in most livestock species

Answer 20

Uterus

Question 21

The “organ of pregnancy” and has a body and two horns

Answer 21

Uterus

Question 22

Produces progesterone

Answer 22

C.L.

Question 23

FSH

Answer 23

Causes the follicle to produce •estrogen
•Is called follicle stimulating hormone
•Is prohibited by progesterone
(All of the above)

Question 24

The proportion of phenotypic variation that can be passed from parent to offspring is

Answer 24

Heritability

Question 25

Circle which is NOT an economical important trait selected

Answer 25

EPD’s

Question 26

What are TWO items that are included in the herd reproductive measures in swine

Answer 26

All of the above

Question 27

What is GnRH

Answer 27

Gonadotropin releasing hormone

Question 28

What is the abbreviation for Follicle Stimulating Hormone

Answer 28

FSH

Question 29

Define dystocia

Answer 29

Difficulty in birth

Question 30

What can we do to limit dystocia

Answer 30

Breed with a light birth weight bull

Question 31

What is the stress disease in swine called

Answer 31

Porcine stress syndrome

Question 32

Bw

Answer 32

Birth weight

Question 33

The first genetic finding were on what

Answer 33

Sheep

Question 34

What are the possible genotypes for two specimens that are homozygous for long noses (LL) and blue eyes (BB)

Answer 34

LB and BL

Question 35

Carcass traits in beef cattle are

Answer 35

Highly heritable

Question 36

EPD stands for

Answer 36

Expected Progeny Difference

Question 37

A genetic evaluation resource in sheep is

Answer 37

NSIP

Question 38

What is DHI

Answer 38

Dairy herd index

Question 39

A multi celled embryo is called an

Answer 39

Morula

Question 40

Which hormone initiates release of FSH and LH

Answer 40

Testosterone

Question 41

The means an animal uses to bring food into its mouth is

Answer 41

Prehension

Question 42

A castrated male calf is called

Answer 42

Steer

Question 43

The four compartments in ruminant stomachs are (in order)

Answer 43

Rumen, reticulum, omasum, abomasum

Question 44

The chief site of digestion and absorption for monogastrics is

Answer 44

Small intestine

Question 45

What is the large intestine in horses made up of

Answer 45

Cecum, large colon, small colon, rectum

Question 46

A good example of animal derived source of protein

Answer 46

Blood meal

Question 47

The following nutrient is made of long chains of amino acids

Answer 47

Proteins

Question 48

Which of the following is not an essential nutrient

Answer 48

NPN

Question 49

Depending on the type of enterprise, the cost of feed and feeding is oftentimes _______ of the total cost of livestock production

Answer 49

45-75%

Question 50

Blood is made up of ___-____ % water

Answer 50

70-80

Question 51

True or false- trace minerals are needed in LARGE amounts

Answer 51

False

Question 52

T/F- a defiance of phosphorus can decrease appetites

Answer 52

True

Question 53

T/F- copper can be fed to sheep and is a micro mineral

Answer 53

False

Question 54

What is one cultural use we use animals for today

Answer 54

Religious practices

Question 55

What is one type of stress an animal can have

Answer 55

Environmental stress

Question 56

Monogastric herbivore

Answer 56

Horse

Question 57

Commercial livestock production that is considered ______ generally means the animals are confined so that mechanization and the latest technology can be maximized and individual attention can be given to the animals without greatly increasing labor

Answer 57

Intensive

Question 58

What is colic

Answer 58

A digestive disturbance

Question 59

The combination of disciplines that together comprise the study of domestic animals is called

Answer 59

Animal science

Question 60

What are the trace minerals?

Answer 60

``` Iron Iodine Selenium Copper Manganese Cobalt Fluoride Zinc ```

Question 61

All the above are trace minerals except

Answer 61

Sodium

Question 62

This part of the small intestine is site of food breakdown

Answer 62

Duodenum

Question 63

Rumination is

Answer 63

The animal regurgitates the food eaten earlier and spends time chewing it

Question 64

All of the following are essential nutrients EXCEPT

Answer 64

DDG