Genetics

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4 domain-specific abstractions whose origin domain is Genetics.

• Allelic Heterogeneity — A genotype-phenotype pattern in which distinct causal variants at the same gene locus produce the same or closely similar phenotype.
• Balancer Chromosome — An engineered chromosome whose recombination-suppressing rearrangements, visible dominant markers, and homozygous deleterious alleles preserve a linked recessive lethal or sterile mutation in a maintainable heterozygous stock.
• Genotype–phenotype distinction — The genetics distinction between inherited molecular information and the observable traits produced through its interaction with development and environment.
• Zygosity — The relationship among allele copies at a locus or genomic region, classically classified as homozygous, heterozygous, hemizygous or nullizygous under ploidy and copy-number context.