- determination of sex
- 性别决定
Medical Chinese dictionary (湘雅医学词典). 2013.
determination of sex
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Sex selection — Parents frequently prefer their offspring to be of a particular sex for a variety of reasons. Social sex selection or human sex selection is the attempt to control the sex of offspring to achieve a desired sex. It can be accomplished in several… … Wikipedia
sex chromosome — Differentiated chromosome which is responsible for the determination of sex of the individual. For all mammals, a small number of flowering plants and many insects, female individuals carry a pair of X chromosomes, and males carry one X and one Y … Glossary of Biotechnology
sex chromosomes — chromosomes that are associated with the determination of sex, in mammals constituting an unequal pair, the X and Y chromosomes … Medical dictionary
Sex allocation — is the allocation of resources to male versus female reproduction in sexual species (Charnov 1982). Sex allocation depends upon the breeding system of a species, as well as how reproduction is carried out within each breeding system. Breeding… … Wikipedia
Sex ratio — is the ratio of males to females in a population. The primary sex ratio is the ratio at the time of conception, secondary sex ratio is the ratio at time of birth, and tertiary sex ratio is the ratio of mature organisms. [Nancy S. Coney and W. C.… … Wikipedia
Sex-selective abortion — is the practice of terminating a pregnancy based upon the predicted sex of the baby. The selective abortion of female fetuses is most common in areas where cultural norms value male children over female children,[1] especially in parts of People… … Wikipedia
sex determination — n the process by which sex and the characteristics distinctive of a sex are imparted to a developing organism * * * the process by which the sex of an organism is fixed; it is associated, in humans, with the SRY (sex determining region Y) gene,… … Medical dictionary
Determination — may refer to: Determination (God Forbid album), 2001 Determination (Tommy Emmanuel album), 1992 Cell fate determination Co determination Coefficient of determination Expert determination Hidden surface determination Orbit determination… … Wikipedia
Sex-selective abortion and infanticide — Sex selective abortion is the targeted abortion of a fetus based upon its sex. This is done after a determination is made (usually by ultrasound but also rarely by amniocentesis or another procedure) that the fetus is of an undesired sex. Sex… … Wikipedia
Sex offender registration — is a system in various states designed to allow government authorities to keep track of the residence and activities of sex offenders, including those who have completed their criminal sentences. In some jurisdictions (especially in the United… … Wikipedia
sex-determination — sexˈ determinātion noun The biological process by which the sex of a new organism is determined • • • Main Entry: ↑sex … Useful english dictionary
