Results 311 to 320 of about 1,768,588 (357)

Three-dimensional genome structures of single mammalian sperm. [PDF]

Nat Commun
Xu H, Chi Y, Yin C, Li C, Chen Y, Liu Z, Liu X, Xie H, Chen ZJ, Zhao H, Wu K, Zhao S, Xing D.   +12 more
europepmc   +1 more source

Genomic loci and molecular genetic mechanisms for hidradenitis suppurativa. [PDF]

Br J Dermatol
Broadaway KA, Sun Q, Edmiston SN, Currin KW, Vadlamudi S, Miller-Fleming TW, Shi Y, Fajgenbaum K, Melendez-Gonzalez M, Bui H, Blum FR, Westerkam L, Shams R, Mallela T, Levitt B, Lin L, Hao H, Memili A, Straub P, Zhou W, Harris KM, Martin A, Cox NJ, Liu Z, Thomas NE, Li Y, Mohlke KL, Sayed CJ.   +27 more
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Diagnosing Sex Chromatin: A Binary for Every Cell

, 2015
In 1949, Canadian anatomist Murray Barr announced the discovery of a peculiar entity in the cell nucleus that was present in females and absent in males.
Nathan Q. Ha
semanticscholar   +1 more source

The sex chromatin count in pregnancy

American Journal of Obstetrics and Gynecology, 1970
Abstract The role of specific hormones in activation of the second X chromosome in women is studied by relating changes in sex chromatin count during pregnancy and the menstrual cycle to well-known hormone fluctuations of these periods.
Fred V. Lucas, Mary S. Case, Townsend Jf
openaire   +3 more sources

Sex Chromatin in Hair Roots

Cytogenetic and Genome Research, 1967
A simple method is described by which sex chromatin can be studied in the cells of the external root sheath of single hairs. From a human capital hair many thousands of scorable nuclei can be obtained. Since this material is suitable for orcein staining, preparations are ready for analysis within a few minutes.
openaire   +4 more sources

A universal stain for the sex chromatin body.

Stain Technology, 1957
For the demonstration of the sex chromatin body in human tissues, fixation in 95% alcohol or modified Davidson's solution (95% alcohol, 30; formalin, 20; glacial acetic acid, 10; distilled water, 30) was best.
Harold P. Klinger, Kurt S. Ludwig
semanticscholar   +1 more source

The Significance of the Sex Chromatin*

1966
Publisher Summary This chapter discusses the significance of the sex chromatin. Several morphological aspects of the sex chromatin are of interest, especially when one bears in mind that this chromocenter is a single X chromosome in a condensed or positively heteropycnotic state. The following account refers to cells of females.
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TERATOMATOUS CYSTS OF THE SPINAL CANAL; WITH "SEX CHROMATIN" STUDIES.

Archives of Neurology, 1964
Introduction Cysts lined by an epithelium superficially resembling that of respiratory or intestinal mucosa are encountered occasionally within the spinal canal.
N. Rewcastle, J. Francoeur
semanticscholar   +1 more source

The duration of replication of the inactive X chromosome in humans based on the persistence of the heterochromatic sex chromatin body during DNA synthesis.

Cytogenetics, 1967
To determine the status of heterochromatin while it was undergoing DNA synthesis, human female fibroblasts were exposed for a brief period of time (three minutes) to tritiated thymidine and immediately fixed.
D. Comings
semanticscholar   +1 more source