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Embryonic development

Embryonic stem cells (marked in green fluorescent protein) that should become sex cells, in which the gene encoding Utx is not present. Each column shows a gene needed for sex cell development (top row – marked in red, purple and orange). After 12 days (bottom row) the expression of the four genes has stopped and, rather than develop into sperm or ova, the stem cells die
28.08.2012

Weizmann scientists discover an enzyme that is crucial for turning back the development clock in cells

The patterns on these butterfly wings are perfectly scaled, even though they are different sizes
04.10.2011

How does a growing, developing organism keep everything in proportion?

Scale Models
22.08.2011

How do organisms keep everything in proportion as they grow and develop?

(l-r) Prof. Varda Rotter, Dr. Eldad Tzahor, Dr. Ariel Rinon, Alina Molchadsky and Dr. Rachel Sarig. Migration regulation
22.06.2011

A gene that protects us from cancer is also involved in the timing of a crucial stage of embryonic development.

(l-r) Dr. Benjamin Friedrich, Prof. Samuel Safran, Dr. Yair Shokef and Elon Langbeheim. Looking underneath
26.04.2011

Developing cells “feel” what is underneath and take shape accordingly

Dr. Karina Yaniv. New growth
07.03.2011

Dr. Karina Yaniv is overturning accepted theories on blood and lymph vessel formation.

Lymphatic system of an adult zebrafish, from the lab of Dr. Karina Yaniv
30.08.2010

It has been called a mystery and a miracle. It is truly a process so complex that we’re just beginning to tease apart the...

Mouse embryo skeleton showing sites of initial bone formation (stained red) and cartilage (green and blue), which will later be replaced by bone
01.10.2009
Do developing organs give each other directions?
Dr. Gil Levkowitz.
01.05.2009
See-through zebrafish embryos let scientists see into such processes as brain...
Dr. Avraham Yaron. sensory neuron guidance system
01.10.2008

Dr. Avraham Yaron asks how our nervous systems get wired

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