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INTRO TO ANIMALS
final study
49
Agriculture
Undergraduate 1
12/15/2010

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Term
Nutrition
Definition
Term
What is the definition of Nutrition?
Definition
The study of how the body uses the nutrients in feed to sustain life and for productive purposes.
Term
Name two types of nutritionists
Definition
Basic Nutritionists
Applied/Production Nutritionists
–Interested in maximizing the efficiency of feeding animals in a production environment.
Term
Basic Nutritionists
Definition
Study the metabolism of the animals and biochemical mechanisms of nutrient metabolism
Term
Applied/Production Nutritionists
Definition
Interested in maximizing the efficiency of feeding animals in a production environment
Term
What is the most important NUTRIENT for all animals?
Definition
Water
Term
Name two nutrients that provide heat/energy
Definition
Carbohydrates and Lipids
Term
The primary purpose of protein is to provide...
Definition
structure
Term
Which is the most efficient at providing energy?
Definition
Lipids
Term
Name one important function of water as a NUTRIENT
Definition
Transport nutrients
Term
Name three body functions that would be a consideration in nutrient requirements:
Definition
growth, reproduction, lactation, wool/hair, health/stress
Term
In addition to providing a source of energy, name one other function of LIPIDS
Definition
heat/carry fat soluble vitamins
Term
The Inorganic, solid, crystalline chemical elements that make up one category of NUTRIENTS are called:
Definition
Minerals
Term
The Organic compounds that are required by the body to regulate metabolism are called:
Definition
Vitamins
Term
Name eight recognized categories of FEEDSTUFFS:
Definition
roughage
pasture
silage's
energy feeds
protein supp
mineral
vitamin supp
non-nutritive additives
Term
Genetic Terminology Quiz
Definition
Term
The scientific application of principals of genetics to improve a species
Definition
Animal Breeding
Term
Animals within a species that share a set of similar characteristics differentiating them from others in the species
Definition
Breed
Term
A large molecule that contains the genes of a living organism
Definition
Chromosome
Term
The 'code' that determines all aspects of an organism's physical characteristics
Definition
Deoxyribonucleic Acid(DNA)
Term
Form of a specific gene that is located in a particular location on a chromosome
Definition
Allele
Term
more than two alleles for a given gene
Definition
Multiple Alleles
Term
an organism as either two dominant or two recessive alleles at a specific location
Definition
Homozygous
Term
Sex sells
Definition
Gamete
Term
process of cell division by which gametes are formed
Definition
Meiosis
Term
Normal cell division resulting in a cell that is identical to the 'parent' cell
Definition
Mitosis
Term
unit of chromosome that determines the characteristics an animal may have
Definition
Gene
Term
One gene or allele affecting the expression of another genes somewhere else on the chromosome
Definition
Epistasis
Term
animals that carry a gene but don't express it
Definition
Carrier
Term
Reproductive selection without any interference from humans
Definition
Natural Selection
Term
Process by which humans choose animals for reproduction based on traits that they consider desirable
Definition
Artificial selection
Term
Genes that are located on parts of the sex chromosome that are different.
Definition
Sex-Linked Inheritance
Term
both male and female carry the gene for a certain trait yet it is only expressed in one sex
Definition
Sex-Limited Traits
Term
Traits that are expressed differently in males are females that have the same genotype
Definition
Sex-Influenced Traits
Term
term that refers to the physical expression of genes in an animal
Definition
Phenotype
Term
Chemical change in the DNA of a gene that results in a new gene or allele
Definition
Mutation
Term
how often a particular gene is found at a specific location in a population
Definition
Gene Frequency
Term
Study of how gene frequency in a population changes over time
Definition
Population Genetics
Term
Mating with an ancestor several generations apart
Definition
Line Breeding
Term
The opposite of inbreeding
Definition
Out Crossing
Term
Breeding for the purpose of determining weather they are homozygous or heterozygous
Definition
Test Cross
Term
Traits that can be measured:
milk production
speed
Definition
Quantitative Traits
Term
Traits that are categorized by their presence or absence
Definition
Qualitative Traits
Term
two different alleles at one loci and demonstrates characteristics associated with both
Definition
Co-Dominance
Term
neither gene is completely dominant or completely repressive but expressed as a blend
Definition
Incomplete Dominance
Term
the degree to which a particular gene influences an animal
Definition
Expression
Term
amount of variation between individuals due to genetics
Definition
Heritability
Term
in the formation of gametes, separation of a pair of genes is independent of the separation of other pairs
Definition
Principal of Independent Assortment
Term
plural term for location of gene on a chromosome
Definition
Loci
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