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Image of in vitro fertilization
Should the scientific community abandon the 14-day rule for research on human embryos?
Research on human embryos is usually limited to the first 14 days of development, but as scientific capabilities improve, some argue that it is time to go further.
Should the scientific community abandon the 14-day rule for research on human embryos?
Should the scientific community abandon the 14-day rule for research on human embryos?

Research on human embryos is usually limited to the first 14 days of development, but as scientific capabilities improve, some argue that it is time to go further.

Research on human embryos is usually limited to the first 14 days of development, but as scientific capabilities improve, some argue that it is time to go further.

bioethics, developmental biology

Multiple purple and pink renditions of stem cells appear as spherical clusters enveloped in translucent bubbles
Mammalian Embryos Might Not Need Primitive Streaks After All
Dan Robitzski | Dec 2, 2021 | 7 min read
The primitive streak, a structure that emerges during mammalian and avian gastrulation, might be a byproduct rather than a landmark of the embryonic development process.
crispr baby he jiankui gene editing genome fertility clinic emails
Fertility Clinics Sought Advice from Scientist Who CRISPRed Babies
Chia-Yi Hou | May 29, 2019 | 1 min read
Emails reveal that a facility in Dubai and others have asked geneticist He Jiankui for help in gene-editing embryos.
japan flag chimera animal research
Bioethicists Concerned over Japan’s Chimera Embryo Regulations
Katarina Zimmer | Apr 4, 2019 | 5 min read
Many researchers see the move to relax the rules as a welcome change, yet some are worried the revisions don’t take public concerns enough into consideration.
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