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Biology
U
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Ubiquitin
Ubiquitin is a small protein used to "label" other ...
Umbilical cord
In mammals, the umbilical cord is the organ connecting the ...
Uniport
A uniport is a type of transponder protein which only allows ...
Ureter
The ureter is a urinary system channel. Function of the ...
Urethra
The urethra is a urinary tract conduit. Function of the ...
Uterus
The uterus is an organ belonging to the female reproductive ...