TLS Online TPP Program

#Id: 6305

#Unit 3. Fundamental Processes

The E. coli rrn promoters are also regulated by a pair of small molecules: the initiating NTP (the iNTP) and an alarmone,  guanosine 5 -diphosphate 3-diphosphate (ppGpp). An abundance of iNTP indicates that the concentration of  nucleotides is high, and therefore it is appropriate to synthesize plenty of rRNA. 

TLS Online TPP Program

#Id: 6749

#Unit 8. Inheritance Biology

Marker position 

TLS Online TPP Program

#Id: 9147

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 1051

#Unit 5. Developmental Biology

Homeobox transcription factors, or Hox genes, play an essential role in specifying whether a particular mesenchymal cell will become stylopod, zeugopod, or autopod.

TLS Online TPP Program

#Id: 2968

#Unit 3. Fundamental Processes

The presence of Cdc6 and Cdtl at the yeast origin allows the MCM proteins to bind to the complex in G I in the inactive state. Their presence is necessary forinitiation.