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40 Cards in this Set
- Front
- Back
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mating closely related individuals
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inbreeding
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mating individuals with common ancesters
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Line breeding
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breeding unrelated individuals of the same breed
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out cross
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mating individuals of different breeds
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cross breeding
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highly heritable traits
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wither height, walk.trot speed, movement points
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moderately heritable traits
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body weight and length
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not very heritable traits
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reproduction, girth
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failure of an immune system to form, commonly found in Arabians
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CID (combined immunodeficiency)
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hyperkalemic periodic paralysis
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HyPP
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found in hot bloods, an x linked trait that leads to the inability of blood to clot
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hemophilia
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fatal disease where dominant white genes lead to premature death from digestive malfunction
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lethal white
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male donkey x female horse
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mule
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male horse x female donkey
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hinny
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how many chromosomes do horses have?
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64
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resemblance among individuals related by descent
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heredity
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occurence of differences among individuals of the same species
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variability
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physical, visible, trait
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phenotype
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genetic makeup
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genotype
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traits controlled by a single or few genes, phenotype similar
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qualitative
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controlled by hundreds of gene pairs, range of phenotypes
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quantitative
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Unsoundness vs. Blemish: this one does not interfere with the horses movement
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blemish
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Unsoundness vs. Blemish:
this one does interfere with the horses movement |
unsoundness
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difference between sound, serviceably sound, and unsound
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sound = 0% lame, s.s. = can still be used, unsound = not to be used
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causes of unsoundness
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overuse, reduced tolerance, acute injury
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five basic horse judging principals
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balance, muscling, structural correctness, quality, movement
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angles you should view a new horse from and why
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front, side, and back, to check for soundness
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angles you should view a new horse from and why
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front, side, and back, to check for soundness
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distinct rythmic movement of the legs
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gait
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distinct rythmic movement of the legs
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gait
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distance between imprints of the two front or back legs
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step
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distance between imprints of the two front or back legs
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step
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all legs moving in a cycle
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stride
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all legs moving in a cycle
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stride
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swing phase, all feet airborne
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suspension
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swing phase, all feet airborne
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suspension
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at least one foot in contact with the ground
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stance phase/ stride stance
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speed is determined by
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the length of stride and frequency of stride
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flexion of knees and hocks, height off the ground
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action
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steadiness in gait (rythm)
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regularity
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pulling force in stride
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power
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