sex determination
Identifying biological sex
Sex determination is the biological process by which an organism develops as male, female, or intersex.
In mammals, sex is typically determined by chromosomes—XX producing females, XY producing males.
Other species use different mechanisms: temperature during egg incubation in some reptiles, social cues in certain fish.
The term also refers to identifying the sex of an embryo, fetus, or newborn: Prenatal sex determination is restricted in some countries to prevent sex-selective abortion.
- eggReproductive cell in shell
- spermMale reproductive cell
- aromataseEstrogen biosynthesis catalyst
- chromosomeDNA strand carrying genes
- geneHereditary information unit
SRY gene · mate · dosage compensation · Wolffian duct · reproductive organs · testosterone · karyotype · genetic testing · mosaicism · estrogen · incubation period · intersex · genitalia · fertilization · gender reveal · it's a boy · puberty · gametes
- forensicsDNA, DNA analysis, fingerprints, forensics, criminalistics
- sex biologybiological sex, sex chromosomes, Y chromosome, XY, sexual differentiation
- sex geneticssex chromosomes, X chromosome, Y chromosome, SRY gene, dosage compensation
- bioarchaeologyhuman remains, disease markers, health history, growth patterns, occupational stress
- Bone Analysisbone biopsy, bone scan, bone density test, species identification, decalcification
- Drosophila geneticsMorgan, Muller, balancers, Hox genes, wingless
sex determinationgender identity
Inner sense of self-classification