Incomplete Dominance (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 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 the two homozygous phenotypes
What colour flowers result from crossing red and white snapdragons?
What colour flowers result from crossing red and white snapdragons?
Pink flowers
In which organisms can incomplete dominance occur?
In which organisms can incomplete dominance occur?
Plants and coat colour of certain animals
In incomplete dominance, what happens with the alleles?
In incomplete dominance, what happens with the alleles?
Neither allele masks the other
What is the genotype of pink-flowered snapdragons?
What is the genotype of pink-flowered snapdragons?
Rr
What phenotype results from crossing RR with rr snapdragons in the F1 generation?
What phenotype results from crossing RR with rr snapdragons in the F1 generation?
100% pink flowers
What percentage of F1 offspring are Rr when crossing RR with rr?
What percentage of F1 offspring are Rr when crossing RR with rr?
100%
What gametes does a pink-flowered (Rr) snapdragon produce?
What gametes does a pink-flowered (Rr) snapdragon produce?
R and r
What phenotype ratio results from crossing two Rr snapdragons in the F2 generation?
What phenotype ratio results from crossing two Rr snapdragons in the F2 generation?
25% red, 50% pink, 25% white
What is the genotype of red-flowered plants in the F2 generation from Rr × Rr?
What is the genotype of red-flowered plants in the F2 generation from Rr × Rr?
RR