Examlex
All of the following comprise the clinical categories of alpha thalassemia except:
Locus
(pl., loci) The place on the chromosome at which the gene for a given trait occurs (i.e., a segment of the chromosomal DNA containing information that controls some feature of the organism); also called gene locus.
Homozygous
Having a pair of identical alleles for a particular locus. Compare with heterozygous.
Heterozygous
Describes an individual having two different alleles for a specific gene.
Alleles
Genes governing variation of the same character that occupy corresponding positions (loci) on homologous chromosomes; alternative forms of a gene.
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