Main article: Sexual differentiation in humans. Because diploid male production is more likely under inbreeding, CSD is a form of inbreeding depression. Can those of us who predominantly work with cultured cells escape the impact of the sex of our cells?
Open in a separate window. Lips not only significantly differ among the males and females in the pattern of the lip print that they present, but they also differ in their size. Environmental sex determination refers to the determination and then differentiation of sex via non-genetic cues like social factors, temperature, and available nutrients.
Discriminant function presented the wrist dimension as the dominant contributor in this study.
At puberty the development of secondary sexual characteristics reinforces and provides more visible phenotypic manifestations of the sexual dimorphism. However, testing of even greater levels of 6-OHDA or chronic exposure to this toxin resulted in tapered upregulation of SRY, which may be due to gradual apoptosis of dopamine cells.
Epigenetic regulation of autosomal gene expression by sex chromosomes. Figure 4. Zhang, L.
X chromosome number causes sex differences in gene expression in adult mouse striatum. Sry has been identified in catecholaminergic brain regions of male but not female rats Milsted et al. The mammalian Y chromosome is also predominantly heterochromatic, but represents a much smaller proportion of the genome than in Drosophila.
Sry: the master switch in mammalian sex determination. A Y-chromosomal effect on blastocyst cell number in mice. Neuropsychopharmacology 32, —
Gluzman Y. Acute myelogenous leukemia: a human cell line responsive to colony-stimulating activity. Genes involved in sex determination process and the influence of Characteristics of a hamster cell clone transformed by polyoma virus.