The lagging strand is synthesized discontinuously and the leading strand is synthesized continuously. This is called semidiscontinuous replication.

TLS Online TPP Program

#Id: 3697

#Unit 2. Cellular Organization

Most known genetic defects in human genes are due to point mutations. The majority directly affect the protein sequence

TLS Online TPP Program

#Id: 10464

#Unit 4. Cell Communication and Cell Signaling

MAD and MNT work with the SIN3 co-repressor protein to bring in histone deacetylases that help to block transcription

TLS Online TPP Program

#Id: 6472

#Unit 3. Fundamental Processes

RNA polymerase I requires two ancillary transcription factors to recognize the promoter sequence. The factor that binds to the core promoter is SL1 which consists of four protein subunits. SL1 has primary responsibility for RNA polymerase recruitment

TLS Online TPP Program

#Id: 1408

#Unit 4. Cell Communication and Cell Signaling

In the presence of ATP,  myosin head releases from the actin filament. 

 

TLS Online TPP Program

#Id: 9373

#Unit 4. Cell Communication and Cell Signaling

Smad7 binds to the activated RI receptors and blocks its ability to phosphorylate Smad2 or Smad3.