(n.) The production of new individuals from virgin females by means of ova which have the power of developing without the intervention of the male element; the production, without fertilization, of cells capable of germination. It is one of the phenomena of alternate generation. Cf. Heterogamy, and Metagenesis.
(n.) The production of seed without fertilization, believed to occur through the nonsexual formation of an embryo extraneous to the embrionic vesicle.
Example Sentences:
(1) O. puertoricensis did not exhibit autogeny or parthenogenesis.
(2) Cyclical parthenogenesis exaggerates the force of selection relative to recombination and will therefore enhance interlocus effects.
(3) Fertilization anomalies (possibly increased by in vitro procedures) were recorded: 1.6% of embryos resulted from parthenogenesis and 6.4% were polyploid (mainly polyspermic).
(4) Now, productive colonies of these lizards, which have remarkably little genetic variation, can be readily established and used not only for research on parthenogenesis but also for many kinds of experiments for which reptile systems are desirable.
(5) This rapid and extensive range expansion provides strong evidence that parthenogenesis can be a successful strategy for lizards in an environment with low and unpredictable rainfall.
(6) We used a comparison between cleavage rates and fertilization rates according to chromosomal analysis of oocytes to estimate the parthenogenesis frequency.
(7) These populations are thus panmictic, and most likely reproduce by cyclical parthenogenesis.
(8) Rickettsia-like maternally inherited bacteria have been shown to be involved in a variety of alterations of arthropod sexuality, such as female-biased sex ratios, parthenogenesis, and sterility of crosses either between infected males and uninfected females or between infected individuals (cytoplasmic incompatibility).
(9) There was no significant difference in parthenogenesis between any of the culture media and it appears to be a function of the strain of mice and the timing between human chorionic gonadotropin (hCG) injection and ovum collection.
(10) Parthenogenesis frequency was increased by male sexual rest.
(11) The causes for the variability of parthenogenesis indices in the polyploid clones are discussed.
(12) In vitro fertilization enabled the study of lethal (parthenogenesis) or sublethal (triploidy, monosomy and trisomy) chromosomal abnormalities in man.
(13) Methylamine appeared to activate oocytes, and most of them developed by haploid parthenogenesis.
(14) It is suggested that males are heteromorphic for the long homologue due to chromatin diminution, that occurs in the maturation division of mitotic parthenogenesis.
(15) A time-course experiment demonstrated that the extent of parthenogenetic activation in vivo following Br treatment was related to the period of time between drug injection and isolation of ova, the optimal period being 12 h. Neither Br nor MA had a direct activating effect on the oocytes as evidenced by an inability to induce parthenogenesis in vitro.
(16) Since calf thymocyte centrosomes do not support parthenogenesis, the present results suggest that duplication of the foreign centrosome is required for centrosome-induced parthenogenesis.
(17) The oocytes were prepared by a combined enzyme-mechanical method without impairing the fertility of the oocyte or inducing parthenogenesis.
(18) Comparisons are made with previously published models that deal with monogamous mating and with parthenogenesis.
(19) Parthenogenesis can only evolve in areas devoid of the generating bisexual species, because such species would prevent newly formed unisexuals from establishing clones due either to hybridization or competition.
(20) The evolutionary switch from paternal to maternal inheritance in mammals might be related to the additional dangers that parthenogenesis represents: a threat to the life of the mother as well as to the life of the fetus.
Theologic
Definition:
(a.) Theological.
Example Sentences:
(1) It is essential, therefore, to submit one's loyalties and value judgments to constant scrutiny and questioning and to those theological criteria that make abortion also (though not only) a theological question, a task not without its risks.
(2) The Mormon religion is one of many conservative faith groups upholding theological opposition to same-sex relationships amid widespread social acceptance and the US supreme court’s 2015 decision legalizing gay marriage.
(3) Literature from theology, philosophy, psychology and nursing was reviewed for contextual usage of the word 'hope'.
(4) DNA sequence analysis of the cDNA clone pACC1 revealed that the coding region of the ACC synthase mRNA spans 493 amino acids corresponding to a 55,779-Da polypeptide; and expression of the coding sequence (pACC1) in Escherichia coli as a COOH terminus hybrid of beta-galactosidase or as a nonhybrid polypeptide catalyzed the conversion of S-adenosylmethionine to ACC (Sato, T., and Theologis, A.
(5) The paper examines two aspects of coitus interruptus as a sexual practice: (1) how, in the age of fertility decline in Western Europe, its meaning was reinterpreted from an earlier theological view that condemned it as licentious to a nineteenth century view that emphasized restraint, and (2) how it was actually experienced by a socially stratified birth-controlling population in rural Sicily, ca 1900-1970.
(6) It is not a theological treatise.” Furthermore, the writer meant that as praise.
(7) What the mixed responses pointed to was that, right from the start, The Satanic Verses affair was less a theological dispute than an opportunity to exert political leverage.
(8) "The text in itself is probably not a landmark work of Islamic jurisprudence, but it is important because it adds to … a corpus of treatises by former militants challenging al-Qaida on theological grounds," Thomas Hegghammer of Harvard University said on the Jihadica website.
(9) In 1949, he graduated from the Coptic Orthodox Theological Seminary.
(10) Edinburgh students called on outside supporters to stage snowball fights in solidarity, while Oxford's Facebook page features support from sympathisers, but also anger from English and theology students unable to get hold of books and data for this week's essays.
(11) During his time at Westcott House theological college in Cambridge, he turned away from the theology of the faculty and from the more catholic Anglicanism of Sir Edwin Hoskyns and later Michael Ramsey.
(12) In developing the relationship of these two dimensions of Catholic moral argument the article highlights how the appeal to natural law categories differs in social ethics and bioethics and how the two topics are received differently in the theological community.
(13) As a consequence, he's the go-to guy for a scathing quote on dissembling theologies and their gullible believers.
(14) Angry US Republicans tell Pope Francis to ‘stick with his job and we’ll stick with ours’ Read more Santorum told a Philadelphia radio station earlier this month: “The church has gotten it wrong a few times on science, and I think we probably are better off leaving science to the scientists and focusing on what we’re good at, which is theology and morality.” Three other Catholic Republican hopefuls: Ted Cruz, Bobby Jindal and Marco Rubio, have yet to speak out on the encyclical.
(15) In 1966 she was sent as a missionary to Brazil at a time when the progressive practices of liberation theology were sweeping through the Catholic church in Latin America.
(16) Michael Kelly (@MichaelKellyIC) It used to be a theology qualification was useful to cover the Vatican, now I'm wishing I did chemistry #Conclave March 13, 2013 12.19pm GMT The Vatican spokespeople seem to be getting a bit bogged down in descriptions of the smoke-making process.
(17) However, the caliphate declaration will be seen in political rather than theological terms.
(18) Evaluative instruments were the Community Mental Health Ideology Scale, two scales adapted from the Theological School Inventory, a self-evaluative competence scale, and a role evaluation scale.
(19) Apt, perhaps, for a man who is preparing to study theology part-time alongside a "portfolio" business career he plans to rebuild once he leaves government.
(20) They are not mutually exclusive | Rodney Croome Read more More importantly, the theological underpinnings of the ACL are distinctly fringe.