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大自然给天地间的生物做了神奇而巧妙的安排,花朵有雌有雄,动物也有雌有雄,人类则有男女之分。谈到性别问题,不少人会觉得这是一个再简单不过的、不值得一说的问题。其实不然,这看似简单的性别问题,它的精密、它的变数、它的复杂,人们至今并未完全吃透。性染色体决定男性还是女性。男性的两条性染色体是异型的,一条
Nature has made wonderful and ingenious arrangements for the living beings between heaven and earth. There are both male and female flowers, and there are both male and female animals, while humans have men and women. When it comes to gender issues, many people think this is a simple but not worthwhile question. In actual fact, this seemingly simple gender issues, its precision, its variables, its complexity, people have not thoroughly digested. Sex chromosomes determine whether men or women. Two male sex chromosomes are shaped, one