ACTH (corticotropin) 

controls the secretion of cortisol by the activation of adenylyl cyclase via Galpha s.

TLS Online TPP Program

#Id: 614

#Unit 2. Cellular Organization

Attenuation is primarily based on riboswitch (Leader sequence) that function in co-translationally in trp operon

TLS Online TPP Program

#Id: 577

#Unit 2. Cellular Organization

Promoter mutations are also cis-acting. If they prevent RNA polymerase from binding at P-lac, the structural genes are never transcribed.

TLS Online TPP Program

#Id: 5190

#Unit 7. System Physiology – Animal

Active factor XII then activates  factor XI, & active factor XI activates factor IX.

TLS Online TPP Program

#Id: 2044

#Unit 8. Inheritance Biology

Genomic imprinting, differential expression of a gene that depends on the sex of the parent that transmitted the gene.

TLS Online TPP Program

#Id: 6237

#Unit 8. Inheritance Biology

Multiple Alleles

Presence of more than two alleles at a locus in a group of diploid individuals