Males have the chromosome XY and females have XX chromosomes. Sperm can carry either an X chromosome or they can carry a Y chromosome. Female egg cells can only have the X chromosome.Answer and Explanation: The sex chromosomes that the child receives determine their sex. The egg will have ...
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How long does sperm last in a woman? Getting pregnant Ejaculated sperm remain viable for several days within the female reproductive tract. Fertilization is possible as long as the sperm remain alive —up to five days. Sperm can also be preserved for decades when semen is frozen. Does urine ...
Today, thanks to the amazing work of feminists before us, women now have many wonderful choices on how to build our families. Financial, career, reproductive and legal rights and opportunities mean that women can now afford to chose have children without committed partners, are less likely to m...
In 2008 a report was published showing XXY pubertal boys and men do indeed have sperms in their ejaculate, and may not be as infertile as first described by Dr. Harry Klinefelter. It may be that as XXY's age they become less and less fertile?
Admit it… your boys are big and you’re proud to show them off. Go ahead – hold your head high! 4. CON – Fatherhood may not be your forte While you may have enough sperm to go around in those big clunkers, some scientists suggest that men with smaller testicles are the ones wh...
【4】What does the underlined word in the fourth paragraph meanA.Sharp increase. B.Fast development.C.Tight control. D.Sharp decrease. 免费查看参考答案及解析 题目: Even if you shop with plastic bags, always remember to recycle them. Most families don’t realize the importance of eco-...
Cupcake15 - I understand the need for gender prediction tests but it is scary to think of what this would do in other societies that may not value girls as much as boys. In those countries I think that the baby gender prediction test is dangerous because more children will be aborted need...
Moby Dick was probably an albino sperm whale. Sperm whales were one of the most common species hunted by whalers during the 19th century, due to the... Learn more about this topic: Moby Dick by Herman Melville | Summary, Characters & Analysis ...
Thischangeforboysislittlebitlikewhenagirlgetsherperiod.这个有点像女孩子月经来潮It'sasignaboyisgrowingupandthebodyispreparingforthedayinthefuturewhenamanmightdecidetobeafather.Itisnormal!这是男孩成熟的标志，也是为将来当爸爸做准备。这很正常的！！Semencontainssperm,whichcanfertilizea woman...