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heterozygote

heterozygote A diploid or polyploid individual that has different alleles (forms of a given gene) at at least one locus. Its phenotype is often identical to that of an individual that has one of these alleles in the homozygous state. (For example, the phenotype of A1A2 may be identical to that of A1A1, but different from that of A2A2.) If so, that allele (A1) is said to be dominant over the other (A2), which is said to be recessive. When there exist only 2 alleles of a gene and when one of these is dominant over the other, one may use a lower-case letter for the recessive allele; e.g., one may write Aa rather than A1A2. However, alleles are not always dominant one over another (see PARTIAL DOMINANCE); and often there are more than 2 alleles at a given locus (see MULTIPLE ALLELISM), especially in polyploids. Because it has two or more different alleles at a given locus, a heterozygote does not breed true.

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"heterozygote." A Dictionary of Plant Sciences. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

"heterozygote." A Dictionary of Plant Sciences. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heterozygote-0

"heterozygote." A Dictionary of Plant Sciences. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heterozygote-0

heterozygote

heterozygote A diploid or polyploid individual that has alleles at at least one locus. Its phenotype is often identical to that of an individual that has one of these alleles in the homozygous state. For example, the phenotype of A1A2 may be identical to that of A1A1, but different from that of A2A2. If so, that allele (A1) is said to be dominant over the other (A2), which is said to be recessive. When there exist only two alleles of a gene and when one of these is dominant over the other, one may use a lower-case letter for the recessive allele (e.g. one may write Aa rather than A1A2). However, alleles are not always dominant one over another; and often there are more than two alleles at a given locus, especially in polyploids. Because it has two or more different alleles at a given locus, a heterozygote does not breed true.

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"heterozygote." A Dictionary of Zoology. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

"heterozygote." A Dictionary of Zoology. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heterozygote-1

"heterozygote." A Dictionary of Zoology. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heterozygote-1

heterozygote

heterozygote (symbol Hz) Organism possessing two contrasting forms (alleles) of a gene in a chromosome pair. In cases where one form is dominant and the other recessive, only the dominant form is expressed in the phenotype (physical characteristics). A homozygote has identical forms of a gene.

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"heterozygote." World Encyclopedia. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

"heterozygote." World Encyclopedia. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/heterozygote

"heterozygote." World Encyclopedia. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/heterozygote

heterozygote

heterozygote An organism or cell that is heterozygous.

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"heterozygote." A Dictionary of Ecology. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

"heterozygote." A Dictionary of Ecology. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heterozygote

"heterozygote." A Dictionary of Ecology. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/heterozygote

heterozygote

heterozygote (hĕt´ərōzī´gōt): see genetics.

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"heterozygote." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

"heterozygote." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/heterozygote

"heterozygote." The Columbia Encyclopedia, 6th ed.. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/heterozygote