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Biology II: Mouse, Zebrafish, and Chick
Mouse Breeding, Sexing, and Development Stages
Description
Mouse breeding, sexing, and development stages are key parts of maintaining a healthy laboratory colony. The laboratory mouse, Mus musculus, is widely used in research because its growth and reproduction can be studied closely. Scientists also use mouse embryos to learn about development and heritable diseases that affect hu...
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Transcript
小鼠是极具价值的模式生物，可帮我们更深了解人类发育与疾病。和其他哺乳动物相比，小鼠的繁殖能力强且发育快，因此其克隆可以得到迅速扩增。
子宫内的发育需要一些特殊的胚胎结构，因此对哺乳动物胚胎学的研究与人类更为相关。本短片中，我们将讨论小鼠繁殖和发育的阶段，如何培育小鼠，和在实验室运用小鼠繁殖和发育知识的途径。
让我们先来简单讲讲小鼠的繁殖。和人类一样，早期小鼠的发育在体内进行，受孕发生在妈妈，也称母体的子宫角内。然而，和我们多数人不同，小鼠一次能产多个胎儿，平均一次妊娠可生产10-12只幼崽。
在详细讨论这些幼崽的发育之前，让我们先温习一下定义发育阶段的术语。最常用...
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