Currently, many women over 45 have to make do with in-vitro fertilisation (IVF) using the egg of a younger woman.

目前，许多45岁以上的妇女只能凑合着用年轻女人的卵细胞进行体外受精（IVF）。

Maybe even make in vitro fertilisation work better.

甚至可能使体外受精效果更好。

Hormone tests do have some value in estimating the timing of menopause and the success of harvesting eggs for in vitro fertilisation.

荷尔蒙测试在预测更年期的时间和预测采集卵子进行体外受精的成功率方面确实有一定的价值。

These follicles grow inside the ovaries until they burst, releasing their cargo into the fallopian tubes and towards potential fertilisation.

这些卵泡在卵巢内生长直至破裂，将其物质释放到输卵管并实现潜在的受精。

Pollen is moved from the male part of a flower to the female part of a flower, then fertilisation can happen causing fruit to grow.

花粉从花的雄性部位转移到雌性部位，然后导致果实生长的受精就发生了。

Six days after fertilisation these were injected with human extended pluripotent stem cells, which can develop into any other cell type found in the body.

在受精后的第六天向它们注射人类扩展多能干细胞（EPSC）。这些干细胞可以发育成嵌合体内的任何其他细胞类型。

With plants having separated sexes, and with those in which, though hermaphrodites, the pollen does not spontaneously fall on the stigma, some aid is necessary for their fertilisation.

对于两性分离的植物， 以及那些虽然是雌雄同体但花粉不会自发落在柱头上的植物， 它们的受精需要一些帮助。

Every hybridizer knows how unfavourable exposure to wet is to the fertilisation of a flower, yet what a multitude of flowers have their anthers and stigmas fully exposed to the weather!

每个杂交师都知道暴露在潮湿环境中对花朵的受精是多么不利，但是有多少花朵的花药和柱头完全暴露在天气中！

Girou de Buzareingues crossed three varieties of gourd, which like the maize has separated sexes, and he asserts that their mutual fertilisation is by so much the less easy as their differences are greater.

Girou de Buzareingues 杂交了三个葫芦品种， 就像玉米一样有两性分离，他断言它们的相互受精越不容易， 它们的差异越大。

So in today's programme we've been hearing about the important role bees play in pollination – transferring pollen from plant to plant, necessary for the next stage of fertilisation – producing new seeds and fruit inside a plant.

所以在今天的节目中，我们一直听到说蜜蜂在授粉中起到了重要作用，授粉是指将花粉从一株植物传到另一株植物，这是下一阶段受精所必需的，受精是指在植物内部产生新的种子和果实。

If so, the position of the ovules, even when one is erect and the other suspended within the same ovarium, would follow the selection of any slight deviations in position which favoured their fertilisation, and the production of seed.

如果是这样， 胚珠的位置， 即使一个直立而另一个悬置在同一个子房内，也将遵循有利于它们受精和种子生产的任何轻微位置偏差的选择。

Fertilisation occurs in all flowering plants, some of which like wheat, potatoes and rice are staple crops-food that is eaten in large amounts as part of a community's daily diet and provides a large fraction of their energy and nutrient needs.

所有开花的植物都会发生受精过程，其中有一些例如小麦，土豆和大米是主要作物——作为某个集体日常饮食一部分而被大量食用的食物，并且提供大部分的能量和营养需求。