complete a punnet square for a cross between a homozygous red-flowered snapdragon (RR) and a homozygous...

complete a punnet square for a cross between a homozygous red-flowered snapdragon (RR) and a homozygous white-flowered snapdragon(rr). give the ratio for the phenotype and the genotype.

Expert Solution

Flower colour in Snapdragon :-
• It show incomplete dominance type of inheritance.
• Incomplete dominance - When a heterozygous genotype shows third type of phenotype which is blend of dominant and recessive phenotypes.
In Snapdragon flowers :-
Alleles -
R - Dominant allele - red colour flowers.
r - Recessive allele - White colour flowers.

Genotypes and phenotypes :-
RR = Red flowers.
Rr = Pink flowers (incomplete dominance).
rr = White flowers

Cross :-

gladiator answered 3 years ago

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