Results 211 to 220 of about 65,172 (249)
Some of the next articles are maybe not open access.
European Journal of Pediatrics, 1981
A phenotypic female with campomelic syndrome and XY gonadal dysgenesis is described. A minor structural chromosome abnormality was detected in the mother.
R S, Trompeter +3 more
openaire +2 more sources
A phenotypic female with campomelic syndrome and XY gonadal dysgenesis is described. A minor structural chromosome abnormality was detected in the mother.
R S, Trompeter +3 more
openaire +2 more sources
Archives of Medical Research, 2001
In humans, sexual differentiation is directed by SRY, a master regulatory gene located at the Y chromosome. This gene initiates the male pathway or represses the female pathway by regulating the transcription of downstream genes; however, the precise mechanisms by which SRY acts are largely unknown. Moreover, several genes have recently been implicated
J C, Zenteno-Ruiz +2 more
openaire +2 more sources
In humans, sexual differentiation is directed by SRY, a master regulatory gene located at the Y chromosome. This gene initiates the male pathway or represses the female pathway by regulating the transcription of downstream genes; however, the precise mechanisms by which SRY acts are largely unknown. Moreover, several genes have recently been implicated
J C, Zenteno-Ruiz +2 more
openaire +2 more sources
The Molecular Genetics of Sex Determination and Sex Reversal in Mammals
Seminars in Reproductive Medicine, 2012The process of sex determination in mammals normally unfolds in three distinct stages: (1) establishment of chromosomal sex at fertilization (XX or XY); (2) commitment to the appropriate pathway of gonadal differentiation with respect to chromosomal sex, through the action (or absence) of the Y chromosome gene SRY; and (3) correct development of ...
Peter Koopman, Alexander Quinn
exaly +6 more sources
Sex reversal in a freshwater sponge
Journal of Experimental Zoology, 1976AbstractSpongilla lacustris exhibits a type of alternative hermaphroditism, new to the phylum, in which a sponge may be exclusively male or female during the period of sexual reproduction one year and the opposite sex the next year. This form of sexuality may facilitate larva production and thus dispersal following colonization of a new habitat ...
J J, Gilbert, T L, Simpson
openaire +2 more sources
Journal of Endocrinology, 1995
Introduction In mammals, sex is determined by the presence or absence of the Y chromosome. The first event in sexual differentiation is the differentiation of the bipotential gonad into testes or ovaries. All subsequent sexual differentiation is under hormonal control of the testes or ovaries. The genetic entity
openaire +2 more sources
Introduction In mammals, sex is determined by the presence or absence of the Y chromosome. The first event in sexual differentiation is the differentiation of the bipotential gonad into testes or ovaries. All subsequent sexual differentiation is under hormonal control of the testes or ovaries. The genetic entity
openaire +2 more sources
Natural sex reversal in vertebrates
Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1970Abstract The phenomenon of sex reversal and hermaphroditism in vertebrates has been observed since early human history dating back to Aristotle, who also recorded that the , a sea-bass, reproduced without copulation. Despite their common occurrence and early discoveries, hermaphroditic animals, with or without sex reversal, aroused ...
openaire +2 more sources
Sex‐Reversed Mice and Sex Determination
Annals of the New York Academy of Sciences, 1987openaire +2 more sources