Most intron mutations are expected to be selectively neutral except branch site, splicing junctions, and sequences influencing splicing

TLS Online TPP Program

#Id: 1564

#Unit 4. Cell Communication and Cell Signaling

Upon secretion, Wnt proteins associate with glypicans (heparan sulfate proteoglycan) in the ECM, which restricts diffusion and leads to a greater accumulation of Wnt closer to the source of production.

TLS Online TPP Program

#Id: 427

#Unit 2. Cellular Organization

Chromatin contains DNA, Histones, Nonhistone Proteins and RNA. RNA polymerase is a prominent nonhistone protein

TLS Online TPP Program

#Id: 3663

#Unit 3. Fundamental Processes

The Wobble Base of the Anticodon Determines the Number of Codons a tRNA Can Recognize.

TLS Online TPP Program

#Id: 9926

#Unit 4. Cell Communication and Cell Signaling

Influenza virus

Influenza are surrounded by an outer envelope, a lipid bilayer derived from the plasma membrane of the infected cell.

Viral specific Protein 

Hemagglutinin (HA) 

Neuraminidase (NA)

TLS Online TPP Program

#Id: 540

#Unit 2. Cellular Organization

Protein filaments in cytoplasm are responsible for the rod and helical cell shapes of bacteria.