Five dopamine receptors fall into two major categories: D1 -like (D1 and D5 )  D2 -like (D2 , D3 , and D4 )

TLS Online TPP Program

#Id: 4663

#Unit 13. Methods in Biology

TUNEL method uses TdT to add BrdU to fixed and permeabilized cells which can only incorporated into fragmented DNA of apoptotic cells.

TLS Online TPP Program

#Id: 9075

#Unit 4. Cell Communication and Cell Signaling

Active PDE hydrolyzes cAMP, driving cAMP levels back to basal levels.

TLS Online TPP Program

#Id: 792

#Unit 3. Fundamental Processes

C is by far the most common base (41%) and G is the least common base (14%) in rut sites, vary in length.  As a general rule, the efficiency of a rut site increases with the length of the C-rich/G-poor region.

TLS Online TPP Program

#Id: 519

#Unit 2. Cellular Organization

Escherichia coli K-12 with 950 gene/Mb gene density has 0 introns in genome and less than 1% repetitive sequences

TLS Online TPP Program

#Id: 7594

#Unit 5. Developmental Biology

Chemotaxis oocyte and its accompanying cumulus cells secrete molecules that attract capacitated sperm toward the egg during the last stages of sperm migration