Con hư tại mẹ

đúng thế,

nghiên cứu mới cho thấy, trứng có thể (thật ra) "chọn" tinh trùng,
-----

If you've attended high school, you can probably remember filling in a Punnett square during a biology class. It was the simple diagram that could not only make you feel like a knowledgeable budding geneticist, but could also help you figure out the probability of your kids having blue eyes in the case the cute classmate you had a crush on agreed to live with you happily ever after.

...What underlies all of Mendel's laws is the idea of randomness. Scientists believe that it is up to chance which sperm (tinh trùng) will fertilize (thụ tinh) an egg and which combinations of alleles (vận động viên) the offspring would have. That is, of course, after the sperm has proven itself to be the strongest and most enduring swimmer (người bơi) of them all. But the point is, the egg has no say in this. It sits passively waiting to be fertilized.

This whole narrative, including Mendel's laws, may be about to change. Dr. Joseph H. Nadeau, principal scientist at the Pacific Northwest Research Institute, has found evidence that suggests eggs and sperm don't always combine randomly (ngẫu nhiên), but in fact the egg may choose (chọn) which sperm to fertilize it.

Bài trước: Éo le cây me
Tags: marriage

2 Comments

Tin liên quan

    Tài chính

    Trung Quốc