parthenogenesis

In the type of parthenogenesis observed in sharks, one of those cells behaves like a sperm and fertilizes the egg.

鲨鱼在单性繁殖时，这些细胞中的一个起到精子作用为卵子授精。

Another form of apomixis in which seeds develop from unfertilized gametes can also be termed parthenogenesis.

在另一种无融合生殖中，种子从未受精的配子中发育而来，这被称为孤雌生殖。

By a last-resort evolutionary adaptation, female sharks, it turns out, are capable of parthenogenesis, or virgin births.

凭这招进化适应性的杀手锏，雌性鲨鱼原来可以单性生殖，或者说，以童贞女之身怀孕生产。

female parthenogenesis in which the embryo contains only maternal chromosomes due to the failure of the sperm to fuse with the egg nucleus.

由于在精子与卵子融合过程中发生失败而使胚胎只包含母染色体的一种单性生殖。

Whether parthenogenesis is an evolutionary aberration or viable strategy remains debated.

不论这种孤雌生殖方式到底是进化中的歧途还是一种存在争议的策略。

as the material for parthenogenesis nurture, and their offspring for molecular marker identification.

作为材料进行孤雌生殖培育，并对其后代进行分子标记鉴定。

Another team generated similar cells using human egg cells only, a process called parthenogenesis.

另一个小组仅用人类的卵细胞也产生出相似的干细胞，这一过程被称之为“单性生殖”。

Potato haploid induction has significant meaning in potato breeding, It includes parthenogenesis and anther culture methods.

马铃薯单倍体诱导在马铃薯育种实践中具有重要意义，它包括孤雌生殖和花药培养等方法。

The group is generally hermaphroditic, although males are rare and female parthenogenesis is common in freshwater species.

这类组群通常是雌雄同体的，尽管雄性稀少；雌性的孤雌生殖现象在淡水物种里普通。

In nature, clones are derived from a single parental organism or cell by mitotic cell division, asexual reproduction, or parthenogenesis .

在自然条件下来源于有丝分裂所产生的单个亲本细胞或生物体，还可能来源于无性繁殖或单性生殖。

Parthenogenesis is so far known to occur in about 70 reptile species.

迄今已知大约70种爬行动物有单性繁殖行为。

parthenogenesis Reproduction without fertilization by male gamete, without genetic recombination or a reduction in ploidy.

孤雌生殖没有雄鱼配子受精的繁殖，没有遗传重组或倍数减少。

Parthenogenesis in which the egg is activated by sperm, but without fusion of the egg and sperm nuclei.

雌核生殖一种单性生殖，精子激活卵子，但是卵子和精子核没有融合

The offspring through parthenogenesis of E. americanus are all male.

美棘蓟马孤雌生殖产生的子代个体均为雄性；

Rotifers are unusual in that they often reproduce by parthenogenesis (some species, indeed, can reproduce only in this way).

轮虫生物与众不同是因为他们通常通过孤雌生殖来繁殖后代（一些种群甚至只能通过这种方式繁殖）。

That could explain why parthenogenesis reproduction has emerged in so many species.

这就可以解释为什么这么多物种都会有孤雌生殖现象。

The parthenogenesis of Kunming mouse oocytes and the preventive method to this disturbance in the nuclear transplantation

昆明鼠卵母细胞的孤雌发育及对其干扰核移植试验的预防措施

Improving Female Parthenogenesis Young Plant Inducing Frequency in Dwarf and Abortive Wheat Using Young Embryo Rescuing Method

用幼胚拯救法提高矮败小麦孤雌生殖诱导频率

Parthenogenesis Induction in Plants and Its Application in Breeding

植物孤雌生殖的诱导及其在育种中的应用

The Relation of Sargassum Polysaccharide with In Vitro Maturation and Parthenogenesis of Porcine Oocyte

马尾藻类多糖对猪卵母细胞体外成熟及孤雌激活的影响