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en.wikipedia.org/wiki/Zygosity

Homozygous and heterozygous. Zygosity is the degree of similarity of the alleles for a trait in an organism. Most eukaryotes have ...

www.dictionary.com/browse/heterozygous

Heterozygous definition, having dissimilar pairs of genes for any hereditary characteristic. See more.

www.vocabulary.com/dictionary/heterozygous

The genetics term heterozygous refers to a pair of genes where one is dominant and one is recessive — they're different.

www.bbc.co.uk/schools/gcsebitesize/science/ocr_gateway_pre_2011/ourselves/7_who_am_i4.shtml

Alleles. Alleles are different versions of the same gene. An allele can be dominant or recessive. Individuals, meanwhile, can be homozygous or heterozygous:.

www.thoughtco.com/heterozygous-definition-373468

Jun 6, 2017 ... Definition: In diploid organisms, heterozygous refers to an individual having two different alleles for a specific trait. An allele is a version of a ...

www.biology-online.org/dictionary/Heterozygous

Jul 13, 2008 ... Related forms: heterozygosity (noun). Related phrases: heterozygous recessive, heterozygous dominant. Compare: homozygous. See also: ...

biologydictionary.net/heterozygous

A heterozygous individual is a diploid organism with two alleles, each of a different type. Individuals with alleles of the same type are known as homozygous  ...

en.wiktionary.org/wiki/heterozygous

Etymology[edit]. From hetero- + -zygous. Adjective[edit]. heterozygous (not comparable). Of an organism which has two different alleles of a given gene.

www.merriam-webster.com/dictionary/heterozygous

Define heterozygous: having the two alleles at corresponding loci on homologous chromosomes different for one or more loci.