homozygote
union of gametes that are alike in their genetic content; contrast with heterozygote
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
homozygote
[Gk. homos, same or similar + zygotos, a pair]
A diploid organism that carries identical alleles at one or more genetic loci.
homozygous ...
Homozygote (adj. homozygous) An individual having two identical alleles at a locus.
Housekeeping gene A gene which is expressed at a similar level in almost all cells, presumably because its product is required for cell viability.
Homozygote. An organism whose genotype is characterized by two identical alleles of a gene. See Allele, Genotype.
Host. An organism that contains another organism.
Homozygote: With respect to a given genetic locus, a diploid individual carrying two identical alleles.
Hydrographic: Referring to the arrangement and movement of bodies of water, such as currents and water masses.
Homozygote an individual with a pair of two of the same allele
(homo = same‚ like‚ alike; zygo = yoke) ...
Homozygote An organism that has two identical alleles of a gene.
See also: heterozygote
Homozygous See: homozygote
Human artificial chromosome (HAC) A vector used to hold large DNA fragments.
See also: chromosome, DNA ...
Homozygote
The term coined by Bateson and Saunders (1902) for a zygote, or a diploid individual derived from it, which carries only one member of the alleles of a gene, that is, ...
Homozygote refers to an individual that has two identical genes. Example: AA or aa
A hybrid is a heterozygote. Example: Aa ...
homozygote An organism in which the pair of alleles for a trait is composed of the same genes (either dominant or recessive but not both). Adj., homozygous.
homozygous Having two identical alleles for a given trait.
Autozygote
Homozygote in which the two alleles are identical by descent (ie they are copies of an ancestral gene). See allozygote.
Panmixia
A mating system in which matings are governed entirely by chance. Also called random mating.
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It has been suggested that this article be split into multiple articles accessible from a disambiguation page. (Discuss) ...
Homozygote -- having identical alleles at one or more loci in homologous chromosome segments. Housekeeping genes -- those genes expressed in all cells because they provide functions needed for sustenance of all cell types.
When heterozygotes are more fit than either of the homozygotes, however, selection causes genetic variation to be maintained. [heterozygote: an organism that has two different alleles at a locus.
Compared to APOE ε3 homozygotes, the histopathological onset of tau pathology is found 1-2 decades earlier but progresses with the same speed.
In the case of overdominance, because Mendel's second law (the law of segregation) necessarily results in the production of homozygotes (which are by definition in this case, less fit), ...
Unlike in Drosophila, where eyeless is not required for viability, homozygotes for the deletion of eyeless are inviable in mammals. Furthermore, this gene is expressed in regions of the mammalian forebrain.
When natural selection favors heterozygotes over both homozygotes, the result is balanced polymorphism. It accounts for the persistence of an allele even though it is deleterious when homozygous.
incompletely dominant An allele combination that produces a phenotype in the heterozygous state that is distinct from the dominant homozygote and the recessive homozygote phenotypes. Also known as semi-dominant.
complete dominance The type of inheritance in which both heterozygotes and dominant homozygotes have the same phenotype.
complete flower Condition in which all flower parts are present. Example: lily.
An allele that is not expressed in the heterozygous condition. Also the phenotype of the homozygote of a recessive allele.
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PKU homozygotes are now routinely tested for in most states. If you look closely at a product containing Nutra-sweet artificial sweetener, you will see a warning to PKU sufferers since phenylalanine is one of the amino acids in the sweetener.
It was found that when two achondroplastic dwarfs marry, 25% of the fetuses die. So it is not a "true" dominant since the person who is a heterozygote with one copy of the gene is not the same as a homozygote with two copies of the mutant gene.
 See also: Gene, Allele, Alleles, Organ, Zygote
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