Plant cells rely extensively on augmin-dependent microtubule branching nucleation to organize the microtubule cytoskeleton because they lack centrosomes.

TLS Online TPP Program

#Id: 9059

#XL - T Zoology

PKA always phosphorylates a serine or threonine residue that is located within the common sequence motif: X-Arg-(Arg/Lys)-X-(Ser/Thr)-Φ

TLS Online TPP Program

#Id: 9336

#XL - T Zoology

Kinase domains in TGF-β receptors phosphorylate and trigger the activation of a conserved class of transcription factors - Smads

TLS Online TPP Program

#Id: 9266

#XL - S Microbiology

N2 constitutes about 80% of the earth’s atmosphere, but the stability of its triple bond renders it inert and metabolically inaccessible to most organisms.

TLS Online TPP Program

#Id: 4315

#XL - T Zoology

The Forces of Evolution: 

TLS Online TPP Program

#Id: 7743

#XL - Q Biochemistry

A covalent radius is one-half the distance between the nuclei of two identical atoms.