A third set of maternal genes whose proteins generate the unsegmented extremities of the anterior-posterior axis: the acron (the terminal portion of the head that includes the brain) and the telson (tail).

TLS Online TPP Program

#Id: 2346

#Unit 3. Fundamental Processes

Sigma factor reduces the affinity for sequence independent binding and confers specificity for promoter.

TLS Online TPP Program

#Id: 2347

#Unit 3. Fundamental Processes

Sigma seems to stimulate both initiation and elongation.

TLS Online TPP Program

#Id: 2348

#Unit 3. Fundamental Processes

Transcription Is Initiated by RNA Polymerase without the Need for a Primer known as de novo synthesis 

TLS Online TPP Program

#Id: 2349

#Unit 3. Fundamental Processes

RNA polymerase starts most transcripts with an A, and that ribonucleotide binds the template nucleotide (T) with only two hydrogen bonds (as opposed to the three between C and G).

TLS Online TPP Program

#Id: 2378

#Unit 3. Fundamental Processes

UACUAAC is branch point sequence for U2 type introns

CCUUAAC is branch point sequence for U12 type introns

TLS Online TPP Program

#Id: 2379

#Unit 3. Fundamental Processes

Prp8, a large scaffold protein that directly contacts both the 5’ and 3’ splice sites within the spliceosome.