What's the difference between asexual and parthenogenetic?
Asexual
Definition:
(a.) Having no distinct sex; without sexual action; as, asexual reproduction. See Fission and Gemmation.
Example Sentences:
(1) We hypothesize that a dynamic complex of sexual and clonal fishes appear to participate in a feedback process that maintains genetic diversity in both the sexual and asexual components.
(2) Changes in the fitness of harmful mutations may therefore impose a greater long-term disadvantage on asexual populations than those which are sexual.
(3) Secondary echinococcosis generates by asexual regressive metamorphosis of larval element intro larval forms.
(4) However, differences between the two groups were statistically significant only for P. falciparum asexual forms.
(5) The intermediate cells divide asexually by endodyogeny giving rise, on the one hand, to another population of intermediate cells, and on the other--to merozoites which divide no longer.
(6) A concentration of 3 x 10(-9) M halofantrine was lethal to both asexual parasites and gametocytes.
(7) Light is necessary for asexual sporulation in Aspergillus nidulans but will elicit conidiation only if irradiation occurs during a critical period of development.
(8) In the other 17 cases followed up to day 21, six were found again with asexual parasites between day 9 and day 14 and a seventh on day 21.
(9) Improved methods were developed for the determination of reduced glutathione (GSH), glutathione disulfide (GSSG), and protein-glutathione disulfide (PSSG) and applied to determine the glutathione status at various stages of the asexual life cycle for the band strain of Neurospora crassa.
(10) A large variety of fungi are known to produce asexual spores known as arthroconidia.
(11) The selection equations for sexual and asexual reproduction of genotypes corresponding to mixed strategies are analysed.
(12) These results are consistent with genetic data suggesting that stuA gene function is required from the very earliest events of asexual reproduction until completion of conidiophore development, but is not specifically required for differentiation of conidia.
(13) Protoplasts were prepared from asexual spores that harbor one or two mutations in the structural gene for tryptophan synthetase.
(14) They also occurred in the immunocytic systems after the first and during the second asexual multiplication and during the relatively late cystic phase of the parasite in the brain.
(15) Five days after therapy with 600 mg chloroquine base, the asexual parasitemia in the American increased 40-fold, but cleared after treatment with 1,500 mg chloroquine base.
(16) We have tested the effect of 2DG on Candida albicans to see if it could be used to obtain GalK- mutants in this diploid asexual yeast.
(17) (owl monkey) is one of the WHO recommended experimental models for Plasmodium falciparum blood stage infection, especially relevant for vaccination studies with asexual blood stage antigens of this parasite.
(18) Cyclic parthenogens have made the transition to obligate asexuality with high frequency, but there is little evidence to support the argument (Williams, 1975) that such shifts result from the relaxation of the short-term selection pressures supposedly necessary to sustain the sexual phase of the life cycle.
(19) Malaria parasites of the genus Plasmodium spend much of their asexual life cycle inside the erythrocytes of their vertebrate hosts.
(20) We established and analyzed human T lymphocyte clones induced by crude Plasmodium falciparum antigens of schizont-enriched asexual blood stages.
Parthenogenetic
Definition:
(a.) Of, pertaining to, or produced by, parthenogenesis; as, parthenogenetic forms.
Example Sentences:
(1) Interspecific hybridization between sexual species carrying different b-alleles and producing different B subunits may be responsible for the heterozygosity at the lactate dehydrogenase b-locus in diploid parthenogenetic Cnemidophours.
(2) The parthenogenetic controls were negative (1.4% and 0%).
(3) These findings demonstrate a new and simple method of inducing post-implantation parthenogenetic development in the mouse, and stress the necessity of taking into account the possible consequences of anaesthesia in the early post-ovulatory period.
(4) The postimplantation viability of parthenogenetic eggs was tested and the results showed that parthenogenetic rabbit embryos died at a similar stage of development to the parathenogenetic mouse embryos.
(5) The accumulating process and concentration ratios of ingested blood meals in the larvae and nymphs of Amblyomma testudinarium, Haemaphysalis campanulata, H. concinna, H. formosensis, H. hystricis, H. kitaokai, the bisexual and parthenogenetic strains of H. longicornis, H. megaspinosa, and Ixodes persulcatus on rabbits and Argas japonicus on chickens were comparatively investigated.
(6) However, the contribution of parthenogenetic cells to the brain does appear to be influenced by strain background, since a marked improvement in the survival of CFLP, 129 and perhaps SWR parthenogenetic cells in chimeric brains was observed compared with F2 cells.
(7) Prolonged in vitro culture of oocytes after parthenogenetic activation and diploidization treatment showed that formed pronuclei were able to fuse and single prometaphase to telophase mitotic cleavage figures developed in all oocytes fixed 28 h after activation, except one cytochalasin B-treated oocyte with two prometaphase sets of chromosomes.
(8) The presence of duplications in all of these parthenogens, but not among representatives of their maternal sexual ancestors, suggests that the duplications arose in the parthenogenetic form.
(9) Freshly ovulated rabbit oocytes were activated parthenogenetically by periodically repeated calcium stimuli generated by electric field pulses applied onto the plasma membrane.
(10) Two morphologically different generations of nematodes, gamagenetic and parthenogenetic ones, develop in the body cavity of the insects.
(11) Parthenogenetic embryos display a fairly normal development until implantation.
(12) We determined the morphological survival rate, the pattern of parthenogenetic activation, and the microtubular and chromosomal organization.
(13) A high frequency of parthenogenetic activation occurs when ovulated mouse oocytes are briefly exposed to a dilute solution of ethanol in vitro.
(14) By 6.5 days, however, in almost every embryo, parthenogenetically derived cells were not detected in the extraembryonic trophoblast tissue descended from the TE.
(15) Southern blot analysis of all populations shows that they can be grouped into three classes: a) American bisexuals; b) Eurasian bisexuals, and c) parthenogenetic organisms (all from Eurasia).
(16) Despite these losses there has been a large increase in fecundity in the parthenogenetic strain.
(17) Past experiments on teratocarcinoma induction by ectopic grafting of early rodent embryos or fetal germinal ridges have remained ambiguous because embryos ordinarily soon form germ cells, and parthenogenetic germ cells form "embryos."
(18) Oocytes exhibited isolated maturative changes almost exclusively in FSH-LH cultures, such as cortical granule synthesis, resumption of meiosis, polar body extrusion, and two-cell parthenogenetic cleavage.
(19) The parthenogenetic Haemaphysalis longicornis larvae engorged on cattle naturally infected with Theileria sergenti were reared at 24 degrees C. The resultant nymphal ticks were incubated at 37 degrees C to clear the effect of incubation on the development and maturation of sporozoites.
(20) Blebbing exists only in oocytes activated by sperm in vivo or in vitro, or parthenogenetically by treatment with ethanol or puromycin.