ADSC 2010: Exam 2
46 Cards in this Set
| Front | Back |
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Galactose is a disaccharide found in milk. t/f
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FALSE
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In general, lowly heritable traits exhibit a greater amount of heterosis than highly heritable ones. t/f
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TRUE
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Sex cells contain a haploid number of chromosomes. t/f
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TRUE
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The main site of water absorption in the sow is the large intestine. t/f
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TRUE
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Carbohydrates and Lipids are the only nutrients that provide energy to the animal.
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FALSE
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The genotype of an animal is the result of the phenotype + the environment.
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FALSE
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A terminal cross breeding program has more heterosis compared to a rotational cross breeding program.
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TRUE
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An expected progeny difference (EPD) is a prediction of an animal's transmitting ability. t/f
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TRUE
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A mature ewe will drink between 10-13 gallons of water per day. t/f
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FALSE
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Both cattle and horses have no essential vitamin A, D, or E requirements. t/f
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FALSE
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Selection changes gene frequency. t/f
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TRUE
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Roughages like clovers and Bermuda grass are poor sources of energy and fiber. t/f
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FALSE
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Most economically important traits are qualitative traits. t/f
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FALSE
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Amylase is in the saliva and aids in the digestion of starch. t/f
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TRUE
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The major effect of in breeding is to increase the number of pairs of heterozygous alleles at homologous gene sites. t/f
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FALSE
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Glycogen and starch are polysaccharides that contain glucose molecules connected by Beta 1-4 linkages. t/f
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FALSE
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Approximatley60-75% of the annual costs of livestock production go towards providing feed to the animals. t/f
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TRUE
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Epistasis is the interaction between genes at different loci. t/f
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TRUE
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A cow that is fed unsaturated fat will tend to deposit unsaturated fat in its body compared to a cow fed unsaturated fed saturated fat. t/f
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FALSE
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Chicken litter can serve as a source of non-protein nitrogen for cattle. t/f
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TRUE
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List 10 essential amino acids.
(MATT HILL VP)
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Methionine
Arginine
Threonine
Tryptophan
Histidine
Isoleucine
Leucine
Lysine
Valine
Phenylalanine
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In DNA, the nitrogenous bases ______ and _______ bind together and _____ and ______ bind together.
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Adenine and Thymine
Guanine and Cytosine
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The two main feed stuffs used in beef cattle feedlot rations and throughout the swine industry are _______ as a source of protein and _______ as a source of energy.
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Soybeans
Corn
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During the digestive process proteins are broken down into _____ ______, triglycerides to glycerol and ______ ______, and carbohydrates to __________ which are absorbed in the digestive tract.
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amino acids
fatty acids
monosaccharide's
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The three enzymes secreted by the pancreas that aid in the digestion of proteins are:
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carboxypeptidase, trysin, and chymotysin.
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_____ _______ is a form of inbreeding which a grandsire is mated to his granddaughter in order to increase the possibility of desirable alleles in the offspring.
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Line Breeding
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If the % nitrogen in a feed is 3.6%, then the crude protein percent of the feed is ____%?
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22.50%
(%CP=%N*6.25)
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The amount of genetic process through a selection can be quantified as _____.
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H^2 * S.D.
(heritability)(heritability)*(selection differential)
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In RNA the nitrogenous base _____ replaces the nitrogenous base thymine which is found in DNA.
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uracil
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Digestion of fiber by microorganisms occurs in the ______ of the horse.
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cecum
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The portion of the small intestine that is the main sight of digestion and absorption is the ______.
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duodenum
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Gregor Mendel's most significant contributions to the science of genetics were the discoveries of the principles of ________ ________ and _______.
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Independent Assortment and Segregation
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The three volatile fatty acids produced in the rumen and utilized for energy are _____ acetate, which contains two carbons: _______, which contains three carbons; and ________ which contains 4 atoms.
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acetate
propionate
butyrate
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The weaning rate ratio of a heifer whose weaning weight was equal to the herd average is ____.
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100
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_____ is an example of a micronutrient.
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Copper
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The three essential fatty acids are _____, _____, and _____.
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lenoleic
lenolinic
arachadonic
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A _______ allele will cover or limit the expression of the other alleles at the same locus.
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dominant
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_____ is the process of cell division where haploid cells are produced from diploid cells and _______ is the cell division process responsible for the growth of tissues.
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Meiosis
Mitosis
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______ _____ is the term used to describe the relationship between amino acids and the requirements of its consumer.
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Protein Quality
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Animal products are excellent sources of __ vitamins.
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B
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_____ _____ is the system of mating individuals that are less closely related than the average animals in the population.
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Cross Breeding
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The type of gene action that is characterized by coat color in Shorthorn cattle where neither alleles is dominate is called a _______.
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codominance
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An inherited trait controlled by one or two genes is called a _____ _____.
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qualitative trait
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_________ is the term used to describe a nutrient that may be supplied in the diet or synthesized by the animal.
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Non-essential
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______ is defined as the increased performance of the crossbred offspring compared to the average of the purebred parents.
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Heterosis
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There are ___ kcal in 1.5 kg of lipids. (kg= 1,000g)
There are 4 parts if the ruminant stomach: the _______, which secretes HCl and pepsin; the ______, which is the largest; the _______, referred to as the honeycomb and the _______, which is the primary site of water absorption.
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abomasum
rumen
reticulum
omasum
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Study Guide: Final Exam