Page 7 - Embryonic Development News Today

Two X chromosomes are actually one too many. Female mammalian cells hence switch off one of them – but only when the cells start to specialize into tissues.

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 or less disabling malformations.

Scientists have shed light on an important stage of early embryonic development that has never been fully mapped out in humans before.

At the earliest stages of human embryonic development, a small collection of cells known as human embryonic stem cells (hESCs) orchestrates growth and differentiation, eventually giving rise to highly specialized human tissues.

Nearly half of our DNA has been written off as junk, the discards of evolution: sidelined or broken genes, viruses that got stuck in our genome and were dismembered or silenced, none of it relevant to the human organism or human evolution.

Everyone is familiar with the roe deer, either from crossword puzzles or from real-​life encounters during a jog or a hike in the forest: majestic creatures with elegant big black eyes.

25 Jahre Klonschaf Was von der Sensation "Dolly" bleibt Stand: 05.07.2021 06:27 Uhr Vor 25 Jahren wurde Klonschaf "Dolly" geboren. Heute ist die Klontechnik eine wichtige Anwendung in Tierzucht und medizinischer Forschung. Von Doris Tromballa, BR Es war eine Sensation, als Schaf "Dolly" am 5. Juli 1996 in einem Stall in Schottland geboren wurde: das erste aus einer reifen Zelle geklont...

Scientists from Helmholtz Zentrum München revise the current textbook knowledge about gastrulation, the formation of the basic body plan during embryonic development. Their study in mice has implications for cell replacement strategies and cancer research.

Scientists know that developing cells in a healthy embryo will transform into a variety of cell types that will make up the different organ systems in...

A research group led by Takashi Saito, of the Ehime University Graduate School of Medicine, developed a 2-photon excitation light-sheet fluorescence microscope which (1) lowers phototoxicity, (2) extends the field of view, and (3) heightens spatial resolution.