Klinefelter's syndrome

(redirected from Kleinfelter)
Also found in: Dictionary, Thesaurus, Medical.
Related to Kleinfelter: XYY

Klinefelter's syndrome

[′klīn‚fel·tərz ‚sin‚drōm]
(medicine)
A complex of symptoms associated with hypogonadism in males as an accompaniment of an anomaly of the sex chromosomes; somatic cells are found to have a Y chromosome and more than one X chromosome.
Mentioned in ?
References in periodicals archive ?
For more information, contact Jim Kleinfelter at 1.800.525.9775 or visit www.younginc.com.
Disorder Genotype Phenotype Sexual development Kleinfelter XXY Tall male Infertile syndrome 1:1,000 live births Trisomy X 47XXX Female, Usually normal usually tall 1:1,000 live births XYY XYY Tall male Usually normal syndrome 1:1,000 live male births Turner 45X Short female, Infertile syndrome distinctive 1:2,000 live features female births Some authors (3) claim that up to 2 percent of live births may show deviation from the ideal male or female, though others insist that the prevalence of the conditions in which chromosomal sex is inconsistent with phenotypic sex is about 0.018 percent.
The team members were Weidner, Javorka, and Dave Kleinfelter (Mount Joy, Penn.).
In another study, Williams and Kleinfelter (1989) examined the relationship between social learning theory, postulated problem solving skills and drinking among college students.
and Kleinfelter, T.A.: 1948, Production of Lightweight Concrete Aggregates from Clays, Shales; Slates, and Other Materials.