It is known that homozygous dominant gene for a type of cone gives brown colour. The formation of cones with brown, yellow colour expresses the _______________ and white expresses the _______________(a) Penetrance, expressivity(b) Expressivity, genotype(c) Genotype, Phenotype(d) Expressivity, penetranceI got this question in an interview for job.This intriguing question originated from Penetrance and Expressivity topic in chapter Regulating Gene Expression in Eukaryotes of Cytogenetics

It is known that homozygous dominant gene for a type of cone gives bro

1.	It is known that homozygous dominant gene for a type of cone gives brown colour. The formation of cones with brown, yellow colour expresses the _______________ and white expresses the _______________(a) Penetrance, expressivity(b) Expressivity, genotype(c) Genotype, Phenotype(d) Expressivity, penetranceI got this question in an interview for job.This intriguing question originated from Penetrance and Expressivity topic in chapter Regulating Gene Expression in Eukaryotes of Cytogenetics
Answer» The CORRECT option is (d) Expressivity, penetrance To explain: The formation of coloured cones is sure that the cones are penetrant, it is variation in the expressivity that GIVES them different colour. The uncoloured cone shows no penetrance.

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