sex dimorphism

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• Sex and intelligence — research investigates differences in the distributions of cognitive skills between men and women. This research employs experimental tests of cognitive ability, which take a variety of forms. Research focuses on differences in individual skills… …   Wikipedia

• Sex-limited genes — are genes which are present in both sexes of sexually reproducing species but turned on in only one sex. In other words, sex limited genes cause the two sexes to show different traits or phenotypes. An example of sex limited genes are genes which …   Wikipedia

• Sex differences in humans — Male and female anatomy. Note that these models have had body hair and male facial hair removed and head hair trimmed. A sex difference is a distinction of biological and/or physiological characteristics associated with either males or females of …   Wikipedia

• Sex — An organism s sex is defined by the gametes it produces: males produce male gametes (spermatozoa, or sperm) while females produce female gametes (ova, or egg cells); individual organisms which produce both male and female gametes are termed… …   Wikipedia

• Dimorphism — Types of dimorphism (having two body types) include:*Sexual dimorphism, differences in the body appearance of a species based on sex*Nuclear dimorphism, when a cell s nuclear apparatus is composed of two structurally and functionally… …   Wikipedia

• Sex and psychology — This article is about psychology and the male and female biological sexes. For information about human sexual perceptions, see Human sexuality. Research on sex and psychology investigates cognitive and behavioral differences between men and women …   Wikipedia

• dimorphism — n. [Gr. dis, twice; morphe, form] A morphological difference in form, color, size or sex in a single population …   Dictionary of invertebrate zoology

• dimorphism — noun 1. (chemistry) the property of certain substances that enables them to exist in two distinct crystalline forms • Topics: ↑chemistry, ↑chemical science • Hypernyms: ↑polymorphism, ↑pleomorphism 2. ( …   Useful english dictionary

• Sexual dimorphism — Female (left) and male Common Pheasant, illustrating the dramatic difference in both color and size between sexes Sexual dimorphism is a phenotypic difference between males and females of the same species. Examples of such differences include… …   Wikipedia

• Sexual dimorphism measures — Although the subject of sexual dimorphism is not in itself controversial, the measures by which it is assessed differ widely. Most of the measures are used on the assumption that a random variable is considered so that probability distributions… …   Wikipedia

• Sexual dimorphism in non-human primates — has long been observed in the primate family, with numerous studies performed to document and explain the phenomenon. Recent studies have mainly used the technique of comparative analysis to examine both the variation in the expression of the… …   Wikipedia