Survivorship curves generated from static life tables may be easier to construct but they ignore environmental variation and may be slightly less accurate than survivorship curves from cohort life tables.

TLS Online TPP Program

#Id: 9328

#XL - T Zoology

Arrestin binds tightly to rhodopsin only when rhodopsin kinase has phosphorylated a sufficient number of C-terminal serines and threonines.

TLS Online TPP Program

#Id: 9329

#XL - T Zoology

The entire process of rhodopsin phosphorylation and its inactivation by arrestin is fast completed within 50ms. 

TLS Online TPP Program

#Id: 9330

#XL - T Zoology

Phosphorylated rhodopsin is restored to its light-sensitive state (R) during dark adaptation by a specific rhodopsin phosphatase

TLS Online TPP Program

#Id: 9331

#XL - T Zoology

In the dark, most transducin is localized to the outer segment, while most arrestin is found in other parts of the cell; in this condition, vision is most sensitive to very low light levels.

TLS Online TPP Program

#Id: 9332

#XL - T Zoology

In bright light, little transducin is found in the outer segment, and abundant arrestin is found there; in this condition,vision is relatively insensitive to small changes in light.

TLS Online TPP Program

#Id: 9333

#XL - T Zoology

An evolutionarily conserved family of receptor serine kinases - TGF-β receptor family