Cytokinin biosynthesis, catalyzed by isopentenyl transferase (IPT), is the addition of the isopentenyl side chain from DMAPP (dimethylallyl diphosphate) to an adenosine moiety (ATP or ADP). iPRTP or iPRDP is converted to ZTP or ZDP respectively by cytochrome P450 monooxygenase (CYP735A) and eventually is converted to zeatin.

TLS Online TPP Program

#Id: 552

#Unit 2. Cellular Organization

Volutin is an inclusion body represents Ppi reserve  used in the synthesis of ATP.

TLS Online TPP Program

#Id: 4868

#Unit 13. Methods in Biology

The level of significance is denoted by the Greek symbol α (alpha).

Therefore, the level of significance is defined as follows: 

TLS Online TPP Program

#Id: 10324

#Unit 4. Cell Communication and Cell Signaling

PD-1 has a structure similar to CTLA-4 and when activated negatively regulates T-cell function by inducing apoptosis of activated T cells. 

TLS Online TPP Program

#Id: 9787

#Unit 6. System Physiology – Plant

Lr34 of wheat, maize Rp1 locus, Xa21 in rice and tomato Pto gene are R genes

TLS Online TPP Program

#Id: 4038

#Unit 7. System Physiology – Animal

activation of the M2 receptors decreases cyclic adenosine 3′,5′-monophosphate (cAMP) in the cells, and this slows the opening of Ca 2+ channels.