1. From fertilization until birth is about 266 days. 从受精到出生大约是266天。
2. The sex of the embryo is predetermined at fertilization. 胚胎的性别早在受精时就决定了。
3. The sperm fuses with the egg to begin the process of fertilization. 精子与卵子结合开始受精过程。
4. The problem occurs because plants need to transfer pollen by wind and insect to fertilization and reproduction. 这个问题的出现是因为植物需要通过风和昆虫来传递花粉以受精和繁殖。
5. Before egg fertilization, the gene produces a protein, found in the cytoplasm of the egg, that controls the pattern of cell division and thus handedness. 卵子受精之前，这种基因会产生一种蛋白质，这种蛋白质存在于卵子的细胞质中，它控制着细胞分裂的模式，从而控制着旋向性。
