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A.K.A LOVEBIRD

&

GENETIC RATIOS
 
 
 

Also Known As (A.K.A)

International Terms for Agapornis roseicollis roseicollis

Lovebird
Rosenköpfchen (German)
Pappagien (Dutch)
Unzertrennlichen  (German)
Agapornis (Greek = lovebird)
Peachfaced
Rosy-faced ( Namibia)
Rose-faced
Inseparabile a faccia rosa (Italian)
Inseparable de cara roja (Spanish)
Cabeza de melocotón (brazil)
Inseparable de rostro color melocotón

I am not completely sure of the National designations. Please inform me if you can correct a term (s) in the list, or add a new country and associated term 
 
 
 

Genetic Expectations


TRAIT
ANTICIPATED
RATIOs
Dominant genes
& 
Monohybrid cross (phenotypic)
3:1
Embryological accidents
1/1,000
Intermediates (modifiers)
66 2/3 %
 carriers to non-carriers
2:1
duplicate dominant genes
15:1
Recessive Heterozygote
1:3
(F2) Dihybrid cross
(phenotypic)
9:3:3:1
Modified Trihybrid Ratio
(phenotypic)
27:9:9:3:9:3:3:1 
(F2) independent impact
12:1:2:1
Lethal
2:1
Epistatic Interactions (complementary gene action)
modified 9:7
Single Dominant Epistasis
12:3:1
Single Recessive Epistasis
9:3:4
Single Dominant; Single Recessive Epistatic gene
13:3
Dominant suppression Epistasis
13:1
Suppressor
prevents expression of alleles at a second locus
Modifier gene
9:3:3:1
Back cross
1:1
Test cross
1;1
Incomplete (co-dominant) dominance (phenotyic = genotypic)
1:2:1