Incomplete Dominance (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is incomplete dominance?
What is incomplete dominance?
Neither allele is completely dominant
What phenotype does a heterozygous organism show in incomplete dominance?
What phenotype does a heterozygous organism show in incomplete dominance?
Between two homozygous phenotypes
Which plant is used as an example of incomplete dominance?
Which plant is used as an example of incomplete dominance?
Snapdragon flowers
What colour are snapdragons with genotype Rr?
What colour are snapdragons with genotype Rr?
Pink
In which organisms can incomplete dominance occur?
In which organisms can incomplete dominance occur?
Plants and animals
What does RR genotype produce in snapdragons?
What does RR genotype produce in snapdragons?
Red flowers
What is the phenotype of all F1 offspring from RR × rr?
What is the phenotype of all F1 offspring from RR × rr?
100% pink flowers
Which gametes does an Rr snapdragon produce?
Which gametes does an Rr snapdragon produce?
R and r
What is the phenotypic ratio in F2 from Rr × Rr?
What is the phenotypic ratio in F2 from Rr × Rr?
25% red, 50% pink, 25% white
What percentage of F2 offspring are pink when crossing Rr × Rr?
What percentage of F2 offspring are pink when crossing Rr × Rr?
50%
In incomplete dominance, does either allele mask the other?
In incomplete dominance, does either allele mask the other?
No, neither masks the other
Which animal trait can show incomplete dominance?
Which animal trait can show incomplete dominance?
Coat colour in cattle