Background: Determination of sex is an important parameter other than age, race and stature during forensic identification crime scene investigation. Females tend to have finer denser ridges on their fingertips males. Present study aims at differentiating gender from fingerprint ridge density. Material Methods: This a cross sectional conducted March 2022 2023 in Nobel Medical College Teaching H...

Most amphibians lack morphologically distinguishable sex chromosomes, but a number of experimental techniques have shown that amphibian sex determination is controlled genetically. The few studies suggesting that environment influences sex determination in amphibians have all been conducted at temperatures outside of the range normally experienced by the species under study, and these effects p...

W e are defined by sexual dimorphism. Male and female, the sexes we are (and are perceived to be), affect how we feel, how we behave and how we interact with others. We look around and see all complex creatures, including ourselves, as either male or female. This is so much a part of our daily existence that it reinforces the idea of manhood and womanhood as expressions of a natural order. We r...

In order to identify the sex marker in Mahisefied, Rutilus frisii kutum, samples from 5 male and 5 female fish were collected from the south Caspian Sea. Polymerase chain reaction random amplified polymorphic DNA (PCR-RAPD) was performed using 124 primer sets. All bands were numbered using 1 and 0 scores corresponding to the presence or absence of bands, respectively and data were analyzed usin...

In 1947, Carl Richard Moore, a researcher at the University of Chicago [6], in Chicago, Illinois, wrote Embryonic Sex Differentiation and Sex Hormones, which was published in the same year as a first-edition monograph. In the book, Moore argues that regulation [7] of sex differentiation [8] in mammals is not controlled by sex hormones [9] secreted by embryonic sex organs (gonads), but is contro...

Evolutionary psychologists have hypothesized that men and women possess both long-term and short-term mating strategies, with men's short-term strategy differentially rooted in the desire for sexual variety. In this article, findings from a cross-cultural survey of 16,288 people across 10 major world regions (including North America, South America, Western Europe, Eastern Europe, Southern Europ...

Gonadal steroids have remarkable developmental effects on sex-dependent brain organization and behavior in animals. Presumably, fetal or neonatal gonadal steroids are also responsible for sexual differentiation of the human brain. A limbic structure of special interest in this regard is the sexually dimorphic central subdivision of the bed nucleus of the stria terminalis (BSTc), because its siz...

Sex determination is the process deciding the sex of a developing embryo. This is usually determined genetically; however it is a delicate process, which in many cases can be influenced by environmental factors. The mechanisms controlling zebrafish sex determination and differentiation are not known. To date no sex linked genes have been identified in zebrafish and no sex chromosomes have been ...

It is widely accepted that sex steroid hormones play an important and a specific role during the process of sex differentiation in fish. In order to describe the role of the three main sex steroid hormones (testosterone--T, 17beta-estradiol--E2 and 11keto-testosterone--11KT) during embryogenesis and sex differentiation in Eurasian perch, Perca fluviatilis, eggs, larvae and juveniles originating...