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NEETBiologyPrinciples of Inheritance & VariationClass 12

What is the difference between homozygous and heterozygous?

Homozygous means two identical alleles (TT or tt); heterozygous means two different alleles (Tt).

Homozygous means two identical alleles (TT or tt); heterozygous means two different alleles (Tt). A reliable way to keep them apart is to focus on what each one is defined by, not just the similar-sounding words.

Key point

homozygous vs heterozygous

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