Compounds such as AMO-1618, Cycocel, and Phosphon D are specific inhibitors of the first stage of gibberellin biosynthesis, and they are used as growth height reducers.

TLS Online TPP Program

#Id: 1813

#Unit 10. Ecological Principles

Population sizes at various times

N_t = N₀e^rt

TLS Online TPP Program

#Id: 6418

#Unit 2. Cellular Organization

The promoter of the araBAD operon from E. coli is activated in the presence of arabinose and the absence of glucose and directs expression of genes encoding enzymes required for arabinose metabolism. 

Unlike the cases of lac and gal genes, where a repressor and an activator work together, here two activators work together: AraC and CAP. 

TLS Online TPP Program

#Id: 3511

#Unit 2. Cellular Organization

Introns may more freely accumulate point substitutions and other changes due to no selection pressure.  Introns evolve or accumulate mutations/changes much more rapidly than exons

TLS Online TPP Program

#Id: 3035

#Unit 3. Fundamental Processes

The clamp associated with the core on the lagging strand dissociates at the end of each Okazaki fragment and reassembles for the next fragment.

TLS Online TPP Program

#Id: 8377

#Unit 2. Cellular Organization

Myosins have 

Motor head domain

Lever-arm neck domain

Cargo-binding tail domain