While the fetal clock develops, mom's behavior tells the time

During fetal development, before the biological clock starts ticking on its own, genes within the fetus's developing clock respond to rhythmic behavior in the mother, according to a new study publishing May 24th in the open-access ...

Tethers bring distant genes together to coordinate embryo development

Organisms such as plants, mammals and insects undergo a carefully orchestrated developmental program as they transition from single-celled embryos to their multicellular adult forms. In a paper that appeared May 4, 2022 in ...

How embryo cells gain independence

It happens in the first hours after fertilization: The cells of the early embryo begin to independently produce proteins, the building blocks for cells and organs. Their own, uniquely composed genetic material serves as the ...

Scientists identify therapeutic target for Epstein-BarrĀ virus

A new study by researchers at The Wistar Institute, an international biomedical research leader in cancer, immunology, infectious disease, and vaccine development, has identified a new potential pathway for developing therapeutics ...

How animals repurpose genes to develop both limbs, eyes

The last common ancestor of cephalopods and vertebrates existed more than 500 million years ago. In fact, a squid is more closely related to a clam than it is a to a person. Even so, the two lineages independently evolved ...

A missing genetic switch at the origin of embryonic malformations

Embryonic development follows delicate stages: For everything to go well, many genes must coordinate their activity according to a very meticulous scheme and tempo. This precision mechanism sometimes fails, leading to more ...

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