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In Aurea, a type of snapdragon, only ______________ carrying dominant genes live.

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In Aurea, a type of snapdragon, only ______________ carrying dominant genes live.

(a) Homozygous

(b) Homozygote

(c) Heterozygote

(d) Heterozygous

The question was posed to me during an interview.

This key question is from Lethal Alleles in chapter Extension and Deviation from Mendelian Genetic Principles of Cytogenetics

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Right option is (c) Heterozygote

Easiest explanation: In this case the heterozygote produces 2:1 ratio of yellow: green leaves. The homozygous dominant individual germinates but due to lack of chlorophyll fails to grow.

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