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Determination of sex is a process by which scientists and medical professionals determine the biological sex of a person or other animal using genetics and biological sexual traits. It is not to be confused with sex assignment which is a more recent colloquial term that allows for the use of non-sexual or non-genetic traits to define a person's ...
A sex-determination system is a biological system that determines the development of sexual characteristics in an organism. [1] Most organisms that create their offspring using sexual reproduction have two common sexes and a few less common intersex variations.
Chromosomal sex is determined at the time of fertilization; a chromosome from the sperm cell, either X or Y, fuses with the X chromosome in the egg cell. Gonadal sex refers to the gonads, that is the testicles or ovaries, depending on which genes are expressed. Phenotypic sex refers to the structures of the external and internal genitalia. [6]
The XY sex-determination system is a sex-determination system present in many mammals, including humans, some insects , some snakes, some fish , and some plants (Ginkgo tree). In this system, the sex of an individual usually is determined by a pair of sex chromosomes .
The biological cause of an organism developing into one sex or the other is called sex determination. The cause may be genetic, environmental, haplodiploidy, or multiple factors. [30] Within animals and other organisms that have genetic sex-determination systems, the determining factor may be the presence of a sex chromosome.
A sex-determination system, a biological system that directs the development of sexual characteristics in an organism; Sexual differentiation in humans; Sexual differentiation, the development of sexual characteristics in sexually reproducing organisms in general
House Bill 421 is demonstrably false, but that doesn’t matter. The point of the bill is discrimination, and its supposed facts are a ruse. | Opinion
According to Poston, "[s]ex refers mainly to biological characteristics, while gender refers mainly to sociological characteristics." [53] While noting that typically sex is assigned based on genital inspection at birth, Raine Dozier states that biological sex is "a complex constellation of chromosomes, hormones, genitalia, and reproductive ...