sexual dimorphism

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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 ?
One reproductive pathway that seems to have occurred repeatedly within the angiosperms is the evolutionary breakdown of hermaphroditism (cosexuality) towards gender dimorphisms such as dioecy and gynodioecy (de Arroyo and Raven 1975, Webb 1979, Sakai et al.
25 Also gender dimorphism was observed in the prevalence of maloc- clusion in this study (pless than 0.
16 Gender dimorphism was not found similar to the findings of Iman et al in Libyian popu- lation.
2% with no gender dimorphism the result being analogous to the observations of H.
To see gender dimorphism in the entire sample and in individual malocclusion group indepen- dent sample t-test was used.
However some other studies by Uysal and Sari18 Fattahi et al20 Smith et al26 and Bernabe et al25 have shown gender dimorphism in anterior overall and posterior ratios with most studies showing larger anterior and overall ratios in males than females.
labial angles of the local population with Caucasian norms and also to establish any gender dimorphism if present.
Cephalometric characteristics of class II malocclusion: Gender Dimorphism.
Similarly the mean chronological age of males and females showed gender dimorphism in each cervical vertebral maturation stage.

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