sexual dimorphism

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Related to Sex characteristics: Secondarysexualcharacteristics

dimorphism

 [di-mor´fizm]
the quality of existing in two distinct forms. adj., adj dimor´phic, dimor´phous.
sexual dimorphism physical or behavioral differences associated with sex.
having some properties of both sexes, as in the early embryo and in some hermaphrodites.

sex·u·al di·mor·phism

the somatic differences within species between male and female individuals that arise as a consequence of sexual maturation; inclusive of, but not restricted to, the secondary sexual characteristics.
A physical dichotomy between males and females of a particular species

sex·u·al di·morph·ism

(sek'shū-ăl dī-mōr'fizm)
The somatic differences within species between male and female individuals that arise as a consequence of sexual maturation, including, but not restricted to, the secondary sexual characters.

sexual dimorphism

the presence in a population of two sexes each with a different PHENOTYPE, a classic example of a GENETIC POLYMORPHISM. The underlying mechanism varies in different organisms, but is often controlled by genes on special SEX CHROMOSOMES (see SEX DETERMINATION).

sex·u·al di·morph·ism

(sek'shū-ăl dī-mōr'fizm)
Somatic differences within species between male and female individuals that arise as a consequence of sexual maturation.

dimorphism

the quality of existing in two distinct forms.

sexual dimorphism
1. physical or behavioral differences associated with sex; males and females of the same species are different in appearance.
2. having some properties of both sexes, as in the early embryo and in some hermaphrodites.

sexual

pertaining to sex.

sexual behavior
includes masturbation, courtship, mating, estral display.
sexual cycle
estral cycle.
sexual differentiation
identification of the sex of a patient is done usually by an examination of external genitalia; preparation and examination of a karyotype is the preferred laboratory method.
sexual dimorphism
differences in structure or physical characteristics between males and females of the same species, e.g. horns in some breeds of sheep, feather coat color in many species of birds.
sexual intercourse
see mating.
sexual maturity
capable of mating. Occurs at different ages in different species and in different races and even breeds.
sexual receptivity
behavioral changes in female animals at the time of estrus; involves acceptance of male efforts at copulation and, in some species, actively seeking the male.
sexual rest
circumstances in which no sexual intercourse takes place.
References in periodicals archive ?
2011), men with a comparatively lower desire to produce offspring may be not only attending to reproductively-relevant secondary sex characteristics, but also overriding the presumably adaptive (evolutionary) preference for cues indicative of female fertility.
testes with oocytes) and decreased expression of secondary sex characteristics (Lange et al.
However, a view of the pelvic inlet of moose shows no distinctive sex characteristics on an individual level and no published data exists for moose which states otherwise.
Estrogen replacement therapy was given for induction of female secondary sex characteristics.
Male frogs exposed to minute doses of the herbicide can develop female sex characteristics, including hermaphroditism and the presence of eggs in the testes.
We generally understand the sex of a person as biologically fixed and easily identifiable through the presence of either female or male sex organs, hormones, chromosomes and secondary sex characteristics.
These women may have only subtle outward clinical features, such as slightly short stature or mildly reduced secondary sex characteristics.
testosterone A steroid hormone that regulates the development of the male reproductive system and male secondary sex characteristics.
Gender can be reliably ascertained only during the breeding season when behavioral and external sex characteristics can be directly observed in species lacking size or plumage dimorphism (Underwood et al.
Once they start puberty, trans-boys may develop female secondary sex characteristics, such as breasts, and may even start to menstruate.
A scholar of 19th-century English literature who is now an editor at the University of Chicago Press, Malane explores the various Victorian scientific inquiries and theories that were greatly investing in findings connections between sex characteristics and the brain, and in establishing the innate traits of male and female minds.