词汇 | parthenogenetic |
释义 | parthenogenetic adjective biology specializeduk /ˌpɑː.θə.nəʊ.dʒəˈnet.ɪk/ us /ˌpɑːr.θə.noʊ.dʒəˈnet̬.ɪk/(alsoparthenogenic) produced by or relating to a type of reproduction(= production of young animals or plants) in which living things develop from eggs that have not been fertilized(= joined with a male sexual cell): 单性生殖的 Human parthenogenetic embryos soon die because parts of their genetic code are unreadable.人类的单性胚胎很快就会死亡,因为它们有一部分遗传密码是不可读的。 These rare animals are often associated with parthenogenic reproduction. Related word parthenogenesis Researchers have developed embryonic stem cells from parthenogenetic eggs. Four of the embryos showed signs of parthenogenetic activation. Suppression of chromosome condensation during meiotic maturation induces parthenogenic development of mouse oocytes. The narrative begins with the birth of a male baby into a species of parthenogenic, semi-aquatic women. Genetics accession number adenine anaphase autosomal autosomally genetic fingerprinting genetically genetically engineered geneticist genic genomic genomics monozygotic mutate non-Darwinian non-familial non-genetic non-mutant nondominant sex-linked Examples of parthenogeneticparthenogenetic The mineral oil enhanced the parthenogenetic rate at 22 h incubation. In addition, the female pronucleus was from in vitro fertilization of an enucleated egg and the female pronucleus was from a parthenogenetic egg. Again, it probably serves to increase the individual fecundity of the parthenogenetic metacercariae. Fragmentation and development of preimplantation porcine embryos derived by parthenogenetic activation and nuclear transfer. There were some concerns that the embryos in their 2004 research were parthenogenetic in origin. There are no significant differences in parthenogenetic capacity of females between the parental species and inter-specific hybrids. In both cases the arrest could be overcome by treatment with the parthenogenetic activators ethanol and cycloheximide. Under the experimental conditions employed, there was parthenogenetic activation and activation due to fertilisation. Therefore, the possibility that the cleaved embryos were due to parthenogenetic development appears to be remote. Oocytes surviving the injection were either cultured without further treatment or exposed to ethanol solution to induce parthenogenetic activation. This suggests that parthenogenetic developmental ability, so-called cytoplasmic maturation, was not affected by the prolonged culture or oocyte aging. However, the effects of these drugs on the parthenogenetic indexes of mouse oocytes have not been well studied. However, neither e strontium and ethanol individually, nor the association of both were efficient to produce parthenogenetic blastocysts. For both hosts, the demographic parameters of the clones examined were improved in the second parthenogenetic rearing generation compared with the first one (table 5). A single zygote and a single parthenogenetic egg were aggregated until they firmly adhered to each other. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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