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Double heterozygote

Biology  Double helix  Double membrane

Double heterozygote: An individual who is heterozygous at two loci under investigation.


This differs from , which refers to an individual who is heterozygous for mutations at two separate genetic loci, which together manifest disease.

The term proposed by Haldane (1941), by analogy with chemical isomerism, to describe a double heterozygote in coupling phase, that is, with the two dominant factors derived from one parent and the two recessives from the other.

When gametes form in s (for example, a green/yellow–round/wrinkled plant), these genes assort independently, because the two chromosomes that bear them assort independently.

See also: See also: Heterozygote, Sequence, Chromosome, Trans, DNA

Biology  Double helix  Double membrane

 
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