TLS Online TPP Program

#Id: 6251

#Unit 8. Inheritance Biology

However, these mutations also interfere with the synthesis of melanin pigment, lightening the color of the hair; therefore, individuals with PKU frequently have light brown or blond hair.

TLS Online TPP Program

#Id: 4767

#Unit 5. Developmental Biology

Mutations of the maternal pie-1 gene result in germline blastomeres adopting somatic fates, with the P2 cell behaving similarly to a wild-type EMS blastomere.

TLS Online TPP Program

#Id: 7779

#Unit 2. Cellular Organization

The nucleoporins are of three types: 

a. Structural nucleoporins

b. Membrane nucleoporins

c. FG-nucleoporins

TLS Online TPP Program

#Id: 363

#Unit 1. Molecules and their Interaction Relevant to Biology

When cellular iron concentrations return to normal levels, IRP1 is converted to aconitase, and IRP2 undergoes proteolytic degradation, ending the low-iron response.

TLS Online TPP Program

#Id: 10092

#Unit 4. Cell Communication and Cell Signaling

Inside-out signaling

intracellular signaling pathways can, via adapter proteins, modify the ability of integrins to bind

to their extracellular ligands