Map of Instructions in the Womb

I will praise thee; for I am fearfully and wonderfully made... Psalm 139:14

"A research team led by University of California, Los Angeles

scientists has created a single-cell transcriptome map of human hematopoietic tissues from the first trimester to birth.
Blood stem cells, or hematopoietic stem cells, have the ability to

--make unlimited copies of themselves 

--and to differentiate into every type of blood cell in the human body.
---....the map unveils specific milestones in their maturation process, including their arrival in the liver, where they acquire the special abilities of blood stem cells.
---The researchers also pinpointed the exact precursor in the blood vessel wall that gives rise to blood stem cells."
SciNews