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Unusual Mammalian Sex Determination Systems: A Cabinet of Curiosities [PDF]

open access: yesGenes, 2021
Therian mammals have among the oldest and most conserved sex-determining systems known to date. Any deviation from the standard XX/XY mammalian sex chromosome constitution usually leads to sterility or poor fertility, due to the high differentiation and ...
Paul A Saunders   +2 more
exaly   +4 more sources

Sex differentiation and sex determination in eels: consequences for management [PDF]

open access: yesFish and Fisheries, 2016
International audienceThe aim of this review is to present an overview of the sex differentiation and sex determination processes in eels in relation to the urgent need to provide scientific knowledge to better protect and manage the Anguilla genus ...
Benjamin Geffroy, Agnes Bardonnet
exaly   +2 more sources

Demographic and genetic consequences of disturbed sex determination [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2017
During sex determination, genetic and/or environmental factors determine the cascade of processes of gonad development. Many organisms, therefore, have a developmental window in which their sex determination can be sensitive to, for example,
Claus Wedekind
exaly   +2 more sources
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The sex determination process in maize

Science, 1994
Maize partitions the sexes into different flowers on the plant, a condition called monoecy, which facilitates outcrossing. Sex determination in maize is a complex process involving an interplay between genetic determinants, the environment, and hormones.
S L, Dellaporta, A, Calderon-Urrea
openaire   +2 more sources

Role of mastoid process in determination of sex

Research Journal of Pharmacology and Pharmacodynamics, 2015
The aim of this research is to evaluate mastoid process using human skull for determination of sex. The main purpose of this research is the ability to examine and determine the sex for unidentified using mastoid process. 50 male and 50 female undamaged skulls were examined. The parameters like mastoid process size and index were examined.
E.P. Thejeswar, M.S. Thenmozhi
openaire   +1 more source

[Symposium of the Process of Fertilization — From Sex Determination to Epigenetics]

Zoological Science, 2005
Two consecutive exocitotic events occur before and after gamete fusion being accomplished. Sea urchin sperm must undergo the acrosomal exocytosis that is triggered by fucose sulfate polymer in jelly coat in order to bind to the vitelline layer of the egg.
Manabu Yoshida, Midori Matsumoto
openaire   +1 more source

Determination of Sex from Mastoid Process By Discriminant Function Analysis

Journal of Anatomical Society of India, 2010
Sex determination is vital for the identification of an individual. Often fragmentary remains are available for forensic identification making sex determination difficult. The mastoid region, a fragmentary piece of skull, is ideal for studying sexual dimorphism as it is resistant to damage due to its anatomical position at the base of skull.
null Sumati, VVG Patnaik, Ajay Phatak
openaire   +1 more source

Determination of Sex Using Mastoid Process

Indian Journal of Forensic Medicine and Pathology
Background: Anthropometric studies of bones play a crucial role in establishing identification, especially in fragmented skeletal remains. Mastoid process is acone shaped bony protuberance extending from mastoid region of temporal bone of the skull. It is usually undamaged, because of its unique and secured position.
Vishnu Prasad   +4 more
openaire   +1 more source

Sex‐related Differences in the Determinants and Process of Science and Mathematics Choice in Pre‐university Education

International Journal of Science Education, 2006
The more science and mathematics subjects that pupils in pre-university education include in their final examination package, the more future academic routes are available to them. Equality of educational opportunity is thus threatened when groups of pupils, distinguished by sex and family background but otherwise of equal capacities and achievement ...
Langen, A.M.L. van   +2 more
openaire   +3 more sources

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