heterogamy


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Related to heterogamy: heterogamous

heterogamy

 [het″er-og´ah-me]
the conjugation of gametes differing in size and structure to form the zygote from which the new organism develops; this occurs in higher life forms.

het·er·og·a·my

(het'ĕr-og'ă-mē),
1. Conjugation of unlike gametes.
2. Bearing different types of flowers.
3. Reproduction by indirect methods of pollination.
[hetero- + G. gamos, marriage]

heterogamy

(hĕt′ə-rŏg′ə-mē)
n.
1. Alternation of sexual and parthenogenic generations, as in some aphids.
2. See anisogamy.
3. The state of having different types of flowers on the same plant, as both pistillate ray florets and staminate disk florets in a flower head.

het′er·o·gam′ic (-rō-găm′ĭk) adj.

het·er·og·a·my

(het'ĕr-og'ă-mē)
1. Conjugation of unlike gametes.
2. Bearing different types of flowers.
3. Reproduction by indirect methods of pollination.
[hetero- + G. gamos, marriage]

heterogamy

  1. the alternation of forms of sexual reproduction.
  2. see HETEROGAMETIC SEX.
References in periodicals archive ?
Religious heterogamy and marital satisfaction: A comparison of interchurch and same-church individuals.
y Becky Glass (1985), "Marital Age Heterogamy and Homogamy, 1900 to 1980", Journal of Marriage and Family, pp.
In particular, there were increased and decreased heterogamy loss ratios in the groups at a certain locus.
Age heterogamy, a commonly used indicator in studies of adolescents/'46'47 was calculated by subtracting the female partner's age from the male partner's age, and then dichotomizing the variable according to whether the male partner was older than the female by at least three years.
What is reflected here is in part persisting differences in rates and forms of male and female labour force participation but also, it would seem, patterns of class homogamy and heterogamy that in their relation to intergenerational mobility would repay more detailed investigation.
Shehan et al., Religious Heterogamy, Religiosity, and Marital Happiness: The Case of Catholics, 52 J.
Homogamy (same-sex unions) seems to me to best describe the relationship of two individuals of the same sex, similar to heterogamy for heterosexuals.
(44) This apparent stability is all the more remarkable if we keep in mind that the data may be biased towards increasing heterogamy, as discussed in the data section.
In Norway, therefore, as in Britain, equality within couples has been achieved less within couples, by ever larger percentages of couples sharing intermediate education, as in Germany, but across couples through an increasingly symmetrical heterogamy. It appears that the rise in female education has had a "modernising" impact on coupledom in a short space of time.
One way to attempt to disentangle the influence of these three potential explanations for a sex difference in mortality is to study a species with (1) no SSD, and (2) where heterogamy and the male phenotype are not confounded, as is the case with mammals (males heterogametic).
The aura of eroticism that surrounds Alison, Sarah, Diana ("The Ebony Tower") and Isobel ("The Enigma") is lacking in Jane, who is an "emblem of a redemption from a life devoted to heterogamy and adultery" (596).
Dean et al., "Sociodemographic and Marital Heterogamy Influences on the Decision for Voluntary Sterilization," Journal Marriage and the Family, 49:465-474, 1987.