Genetics - Midterm Flashcards
Heritability value (h2) for milk protein and fat %:
0.005-0.006 middle, 0.4-0.6, medium-high, 5.0-6.0 middle, 0.5-0.6 high
0.4-0.6, medium-high
The 2n chromosome number of a donkey: 62, 60, 60, 52
62
“S” gene locus determining the white region inheritance of domestic animals:
-roan, colored and white intennedier, studded mix, roan;
-dilutions, black to blue, red to cream, brown to purple, melanophilin, DCT, dilution;
-in white variegated horse, EDN, overo, wild color;
-white spotted, variegated, KIT, Sabino spotting
-white spotted, variegated, KIT, Sabino spotting
Egg production and inheritance (h2) values for egg weight in chickens:
rg=-0.0005 rp = 0.30
rg=0.05 rp=3.30
rg= - 0.05. rp = 300
rg= - 0.05. rp = 0.30
rg= - 0.05. rp = 0.30
Goat’s 2n chromosome number: 58, 64, 50, 60
60
“E” locus for inheritance of the coat colour in domesticated animals;
-graying, hair bleaching, elmo
-melanocortin receptor, MC1R, red, yellow, extension
-full white, kit, goose
-merle, colorful and white intennedier, stitched blend, expressive
melanocortin receptor, MC1R, red, yellow, extension
The dog’s 2n chromosome number: 76, 68, 78, 80
78
Heritability value (h2) for milk yield:
-0.8-0.9 low
-0.1-0.2 low
-0.2-0.3, low
-1.1-1.2 low
-0.2-0.3, low
2n chromosome number of poultry species
-cca. 78-80
-cca. 88-90
-cca. 72-76
-cca. 68-70
-cca. 78-80
Inheritance value (h2) of egg production and body weight in chickens:
-rg=0.00 rp=-0.20
-rg=0.00 rp=-0.20
-rg=0.00 rp=-0.002
-rg=0.00 rp=-2
-rg=0.00 rp=-0.20
Bovine 2n chromosome number: 50, 62, 56, 60
60
Number of domestic species: 50, 60, 70, 40
50
“W” locus for inheritance of the coat colour in domesticated animals
-white spotted, motley, KIT, spotting
-white motley horse, edn, overo, wild
-white motley lake, tobiano
-full white, kit, white
-full white, kit, white
“C” locus for inheritance of the coat colour in domesticated animals
-melanocortin receptor, MC1R, red, yellow, code-R
-polymorphic albino variants: chinchilla, Himalayan, acromelic, full albino, pigment dilution
- gray, hair bleaching, canine
-full white, KIT, white, code-C
-polymorphic albino variants: chinchilla, Himalayan, acromelic, full albino, pigment dilution
Genetic (rg) and phenotypic (rp) correlations in pigs: intensity of growth and feed conversion
-rg=-0.1 rp=-0.005
-rg= -0.0055 rp= -0.0045
-rg=-55 rp=-45
-rg= -0.55 rp= -0.45
-rg= -0.55 rp= -0.45
The cat’s 2n chromosome number: 36, 40, 44, 38
36
The 2n chromosome number of the sheep: 60, 54, 64, 50
54
Specific feed utilization in beef cattle fattening:
-2-3 kg feed/1 kg live weight
-3-4 kg feed/1 kg liveweight
-2.5-3.5 kg feed/1 kg live weigh
-2-3 kg feed/1 kg live weight
3-4 kg feed/1 kg liveweight
The mammalian domestic species average number of breeds
-200-700
-100-300
-80-280
-100-500
-100-500
“A” locus for inheritance of the coat colour in domesticated animals:
-chinchilla albino
-wild colours, agouti
-polymorphic albino variants: color, chinchilla, himalayan, alcrornellanic, full albino
-in white motley, EDN, avero
-wild colours, agouti
“G” locus for inheritance of the coat colour in domesticated animals
-full white, kit, goose
-roan color and white intennedier, stitched blend, germanium
-greying, early hair bleaching,
-wild colors, aguti
-greying, early hair bleaching,
“T” gene locus determining the colour inheritance of domestic animals:
-roan color and white intennedier, studded mixing, roan
-graying, hairs bleaching, graying
-wild colors, agouti
-white in variegated lake, tobiano
white in variegated lake, tobiano
Heritability value (h2) for meat production:
-0.4-0.8
-0.4-0.6
-0.89-0.9
-4.0-6.2
-0.4-0.6
The horse’s 2n chromosome number: 54, 60, 64, 62
64
“R” locus for inheritance of the coat colour in domesticated cattle
-in white variegated lake, tobiano
-white spotted, variegated, KIT, spotting
-color dilutions, black to blue, red to cream, brown to purple color, melanophilin, DCT, dilution
-colour and white intermediate, studded mixing, roan
colour and white intermediate, studded mixing, roan
Heritability value (h2) for fertility:
-0.8- 0.9 high
-0.001- 0.002 alacsony
-0.1-0.2, low
-10-20 low
-0.1-0.2, low
Genetic (rg) and phenotypic (rp) correlations in pigs: intensity of growth and intramuscular fat:
-rg=0.05 rp=0.30
-rg=0.5 rp=3
-rg=0.02 rp=0.10
-rg=5 rp=0.003
-rg=0.05 rp=0.30
“O” locus for inheritance of the coat colour in domesticated animals
-white in motley horse, EDN, overo frame
-color dilutions, black to blue, red to cream, brown to purple, melanophilin, DCT, dilution
-in white motley lake, tobiano
-roan, colored and white intennedier, studded mixing, roan
-white in motley horse, EDN, overo frame
Chromosome number (2n) of European pig: 48, 40, 36, 34
36
