One individual, however, expresses only a small number of these molecules—up to six different class I molecules and 12 or more different class II molecules.

TLS Online TPP Program

#Id: 9267

#XL - R Botany

Diazotrophs are able to catalyze the enzymatic reduction of this compound to ammonia (NH3) using the enzyme nitrogenase

TLS Online TPP Program

#Id: 10012

#XL - T Zoology

Ptc contains 12 TM α helices and structurally similar

to the Niemann-Pick C1 protein, a cholesterol transporting member of the ABC superfamily

TLS Online TPP Program

#Id: 8241

#XL - T Zoology

Dispersal is the movement of individuals from one area to another.

Dispersal involves individuals leaving their habitat of origin—where a seed was made or where a squirrel was born—and typically not returning.

TLS Online TPP Program

#Id: 8161

#XL - Q Biochemistry

KKXX sorting signal,

binds to a complex of the COPI α and β subunits

TLS Online TPP Program

#Id: 7931

#XL - Q Biochemistry

Microsomes

when cells are homogenized, the rough ER breaks up into small closed vesicles with ribosomes on the outside