منابع مشابه
Sex Genes: A Critical Sociomaterial Approach to the Politics and Molecular Genetics of Sex Determination
H ow should the social sciences engage with the materiality of “nature”? The literatures of both the social studies of science and gender studies have wrestled with this question in their analyses of the production of scientific knowledge. In examining the production or consumption of scientific knowledge, these literatures have demonstrated how production and consumption are social and cultura...
متن کاملPneumoviruses: Molecular Genetics and Reverse Genetics
Pneumoviruses are responsible for significant respiratory disease in their hosts and represent a major problemfor human and animal health. Pneumoviruses are members of the family Paramyxoviridae, subfamilyPneumovirinae and the virus particles consist of a negative-sense, nonsegmented RNA genome within a helical nucleocapsid structure enveloped in a lipid membrane derived from the ho...
متن کاملGenetics of sex determination in tilapiine species.
We identified DNA markers linked to sex determining genes in six closely related species of tilapiine fishes. The mode of sex determination differed among species. In Oreochromis karongae and Tilapia mariae the sex-determining locus is on linkage group (LG) 3 and the female is heterogametic (WZ-ZZ system). In O. niloticus and T. zillii the sex-determining locus is on LG1 and the male is heterog...
متن کاملSex determination: where environment and genetics meet.
In mammals and birds the genetic constitution established at the time of fertilization determines the type of gonad that develops, whereas in all crocodilians and many turtles it is the temperature experienced during the mid-trimester of embryogenesis that initiates gonadal differentiation. Research with the red-eared slider suggests considerable conservation in the genetic cascades that underl...
متن کاملEvolutionary Genetics: Changed Sex Determination in Honeybees
In several insects and fish, and probably some mammals, the gene controlling the male-female switch has changed during evolution. It now seems that this has also happened in honeybees, where the sex-determining gene has now been shown to be a duplicate of another Hymenopteran sex-determining gene.
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ژورنال
عنوان ژورنال: Journal of Medical Genetics
سال: 1994
ISSN: 1468-6244
DOI: 10.1136/jmg.31.11.901