查询词典 reproduction

However, reproduction is often by parthenogenesis since polyploid animals are often sterile.

然而，它们常常是通过孤雌生殖繁殖的，因为多倍体动物往往不育。

Paternity tests proved she was both the mother and father of the embryos - a system of solo reproduction known as parthenogenesis.

DNA鉴定证实，弗洛拉即是这些宝宝的母亲也是它们的父亲，这种现象被称作单性生殖。

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。

Reproduction and a seal of the partita.

再生产和印章的帕尔。

Due to the causes such as polyploidy and self-incompatibility, the plants of Paspalum, with the greatest number of apomictic species, show much complex and various reproduction characteristics.

由于多倍体的存在及有性生殖的自交不亲和等原因，雀稗属植物表现出复杂多样的生殖特性，是禾本科中具备无融合生殖特性种类最多的属。

Experiments were conducted to measure the impact of biofouling on the growth and reproduction of pearl oyster Pinctada martensii.

主要研究定期清除污损生物的合浦珠母贝与不清除污损生物的合浦珠母贝在生长及繁殖上的差异，用以说明污损生物对合浦珠母贝的生长及繁殖的影响。

The research made a serial of studies on buds inducement and reproduction, root differentiation and cultivation of young plant in different hormone and different culture media, which selected tender leaves of Pelargonium citrosum as explants in germfree condition.

以驱蚊香草的幼嫩叶片作外植体，在含不同激素的不同培养基上进行丛生芽的诱导、芽的继代增殖、芽生根与移栽研究，以快速获得再生植株。

Penna biological model of death and reproduction of the law , the application of this law can simulate the number of biological populations .

生物模型中的死亡和繁殖规律，运用此规律可以模拟生物种群的数量。

Corm An organ of perennation and vegetative reproduction, consisting of a short erect fleshy swollen underground stem, usually broader than high and covered with membranous scales. It stores food material in the stem and bears buds in the axils of the scalelike leaf remains of the previous years ' growth.

球茎：球形或扁球形短而肥大的地下茎，节和节间明显，节上有退化的鳞片状叶和腋芽，顶端有一个显著的顶芽，茎内储藏着大量的营养物质，有繁殖作用。

Microbial growth and reproduction process can be divided into four phases, namely, lag phase, logarithmic phase, stationary phase and decline phase.

微生物的生长和繁殖的过程可分为四个阶段，即滞后期，对数期，稳定期和衰落期。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。