نتایج جستجو برای: genetic gender determination
تعداد نتایج: 1010894 فیلتر نتایج به سال:
OBJECTIVE To assess the accuracy of fetal sex determination at 11-14 weeks of gestation. METHODS Fetal gender assessment by ultrasound was prospectively carried out in 172 singleton pregnancies at 11-14 weeks of gestation immediately before chorionic villus sampling for karyotyping. The genital region was examined in a midsagittal plane and the fetal gender was assigned as male if the angle o...
The article is devoted to the methodology of prenatal gender selection and ethical aspects its implementation. Based on analysis scientific publications, principal techniques determine sex in pre-implantation period, embryo fetus, are presented. Invasive non-invasive procedures diagnosis descreibed. include examination fetus by chorionic villus sampling karyotyping cells obtained amniocentesis....
Selection of the gender of children has been one of the major humanitarian concerns. Nowadays, with the advancement of genetic technology, couples are choosing a gender-specific child of a pre-implantation genetic method with many goals such as preventing sexually transmitted diseases and the interest of parents in a child of a specific gender. The question that arises is whether such a practic...
. AbstrAct Gender determination of skeletal remains is a part of many medico-legal as well as anthropological examinations. Many anatomical structures have been studied, but the teeth and their measurements seem to be the most reliable method since teeth represent the most durable and resilient part of the skeleton. The purpose of this study was to investigate the accuracy of a method with whic...
Background: Early detection of fetal gender can provide an alarm for parents who complicated by genetic disorders. Moreover, the invasive tests are used for detecting any sex-specific genetic syndromes before 12 weeks of gestation. This study was de-signed to discover any association between placental location and fetal gender between 11 to 13+6 weeks of gestation. Methods: A cross-sectional s...
Purpose. Gender determination is considered to be an important step in the reconstruction of the biological profile in forensic medicine. Maxillary sinus can be used for identification of sex when other methods are indecisive. Computed tomography (CT) provides an excellent method for examining maxillary sinuses. Hence the aim of the study was to determine the accuracy of gender determination us...
A surprising diversity of mechanisms controls sex determination of vertebrate organisms, even among closely related species. Both genetic and temperature-dependent systems of sex determination have been described in teleost fish. In the common zebrafish model organism, heteromorphic sex chromosomes are not observed, and the potential role of a genetic component of sex determination remains larg...
Corresponding author: Farbod Fadai, MD Associate professor of psychiatry, University of Welfare and Social Sciences, Kudakiar Avenue, Daneshju Bulevard, Evin, Tehran TelFax: +98-21-33401604 Email: [email protected] Objective: in recent years different hypotheses with respect to the formation of cerebral laterality were proposed. Some of the researchers claim that cerebral dominance and lat...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید