Ethical Guidelines on Lab-Grown Embryos Beg for Revamping, Scientists Say by Karen Weintraub | Free Audiobook

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Title: Ethical Guidelines on Lab-Grown Embryos Beg for Revamping, Scientists Say
Author: Karen Weintraub
Narrator: Jef Holbrook
Format: Unabridged
Length: 8 mins
Language: English
Release date: 03-27-17
Publisher: Scientific American
Genres: Science & Technology, Magazine & Radio

Summary:
For nearly 40 years scientists have observed their self-imposed ban on doing research on human embryos in the lab beyond the first two weeks after fertilization. Their initial reasoning was somewhat arbitrary: 14 days is when a band of cells known as a primitive streak, which will ultimately give rise to adult tissues, forms in an embryo. It is also roughly the last time a human embryo can divide and create more than one person, and a few days before the nervous system begins to develop. But the so-called 14-day rule has held up all this time partly because scientists could not get an embryo to grow that long outside its mother's body.
"Ethical Guidelines on Lab-Grown Embryos Beg for Revamping, Scientists Say" is from scientificamerican.com, published on March 21, 2017.

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