At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.此时每条染色体由一对染色单体构成,这两条联合的染色体称为四分体.The Y chromosome is starting to yield other intriguing tales as well.Y染...
chromosome banding染色体显带Miscarriages are usually caused by abnormal chromosome patterns in the fetus.流产通常是因为胎儿的染色体异常造成的.These chromosome aberrations are all stable, compatible with cell viability.这些染色体畸变都是稳定的, 不影响细胞生活力的.L...
She eventually used a cane, then a walker, and finally was confined to the house.结果她拄上了拐杖，后来又用上了助行架，最后连房门都出不了了。The Minnesota Vikings signed Herschel Walker from the Dallas Cowboys...明尼苏达维京人队签下了来自达拉斯牛仔队的赫舍尔·沃克。Walker had ...