Hemizygous

hemizygous
the condition of having only one set of alleles instead of two, as in the case of loci on the X chromosome in males
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...
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Hemizygous
If there is only one copy of a gene for a particular trait in a diploid organism, the organism is hemizygous for that trait, and will display a recessive phenotype.
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Hemizygous Having only one copy of a particular gene. For example, in humans, males are hemizygous for genes found on the Y chromosome.
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hemizygous Having one or more genes that have no allele counterparts. Usually applied to genes on the male's X chromosome (in humans).
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hemizygous An individual having one member of a pair of genes.
hemocoel Main body cavity of arthropods, the embryonic development of which differs from that of a true coelom but that includes a vestige of a true coelom.
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Hemizygous
: As in any X-linked trait in males, absence of a homologous counterpart for an allele. It may also result from deletion. Males are hemizygous for mutations on X chromosome.
Heritability ...
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Where the A gene is sex-linked, the heterogametic sex (e.g., human males) have only one copy of the gene (and are termed hemizygous), while the homogametic sex (e.g., human females) have two copies. The genotype frequencies at equilibrium are
p
and ...
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The sudden appearance of a recessive phenotype in a pedigree, due to deletion of a masking dominant gene. The phenomenon in which a recessive allele shows itself in the phenotype when only one copy of the allele is present, as in hemizygous alleles ...
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Women have a blood-clotting gene on each X chromosome so that one normal blood-clotting gene can compensate for a flaw in the gene on the other X chromosome. But men are hemizygous for the blood-clotting gene since there is no gene on the Y ...
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