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Molecular Genetics


Weizmann Institute of Science researchers call for a new kind of test – one that will ensure evolutionary safety – ...

A stem cell–derived human embryo model at a developmental stage equivalent to that of a human embryo at day 12 has all the compartments typical of this stage. The top sphere contains the part that will become the embryo itself, capped by the amnion; the bottom sphere is the yolk sac; the interface between them is a critical structural feature of human embryonic development. The two spheres are encapsulated by a cellular layer that will become the placenta

The complete, day 14 synthetic models may open new avenues of research into infertility, drug testing and growth of tissues for transplant – as...


A newly discovered immune strategy protects bacteria and more advanced species, from corals to bees

Lung macrophages infected with the human cytomegalovirus. Cells harboring an active infection are in bright green

High levels of defensive proteins offer protection against a hostile takeover by herpes viruses

Bacteriophages attacking a bacterium. Source: Prof. Graham Beards

Weizmann Institute scientists reveal how viruses outwit cellular immune systems

Development of synthetic mouse embryo models inside beakers

The method opens new vistas for studying how stem cells self-organize into organs and may in the future help produce transplantable...


Removing a newly discovered “lock” from DNA’s packaging can restore limitless abilities to early cells

Rewriting the Classics

Weizmann scientists breathe new life into one of the cell’s most classic and best-researched metabolic pathways

Transperons in action

New study reveals a genetic regulation mechanism in eukaryotes ensuring that proteins that work together are expressed together