Incomplete Dominance (Leaving Cert Biology): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
Definition of incomplete dominance
Definition of incomplete dominance
Neither allele is completely dominant over the other
Result of incomplete dominance in heterozygotes
Result of incomplete dominance in heterozygotes
Phenotype between two homozygous phenotypes
Example of incomplete dominance in snapdragons
Example of incomplete dominance in snapdragons
Red × white flowers produces pink flowers
Where incomplete dominance can occur
Where incomplete dominance can occur
Plants and coat colour in animals like cattle
Allele masking in incomplete dominance
Allele masking in incomplete dominance
Neither allele masks the other
Heterozygous phenotype in incomplete dominance
Heterozygous phenotype in incomplete dominance
Blend of two homozygous traits
Snapdragon genotype RR phenotype
Snapdragon genotype RR phenotype
Red-flowered
Snapdragon genotype rr phenotype
Snapdragon genotype rr phenotype
White-flowered
Snapdragon genotype Rr phenotype
Snapdragon genotype Rr phenotype
Pink-flowered (intermediate)
F1 genotype from RR × rr cross
F1 genotype from RR × rr cross
100% Rr
F1 phenotype from RR × rr snapdragon cross
F1 phenotype from RR × rr snapdragon cross
100% pink flowers
F2 phenotype ratio from Rr × Rr cross
F2 phenotype ratio from Rr × Rr cross
25% red, 50% pink, 25% white