Simplified biosynthetic pathway for cytokinin biosynthesis followed given such steps;

a) isopentenyl transferase (IPT), is the addition of the isopentenyl side chain from DMAPP (dimethylallyl diphosphate) to an adenosine moiety (AMP)

b) iPRTP or iPRDP is converted to ZTP or ZDP respectively by cytochrome P450 monooxygenase  and eventually is converted to zeatin

c) The ribotide and riboside forms of trans-zeatin can be interconverted, and free transzeatin can be formed from the ribotide by the LONELY GUY (LOG) family of cytokinin

Which of the following steps is true of the cytokinin biosynthesis?

TLS Online TPP Program

#Question id: 12622

#Unit 6. System Physiology – Plant

Brassinosteroids play pivotal roles in a wide range of developmental phenomena in plants;

a) seed dormancy

b) cell differentiation

c) photomorphogenesis

d) reproductive development

e) delay leaf senescence

f) stress responses

Find from the above combinations of  development in plants by Brassinosteroids is correct?

TLS Online TPP Program

#Question id: 12623

#Unit 6. System Physiology – Plant

Some given chemical structure of the phytohormones;

   

                           

Find out the correct name of above given structure

TLS Online TPP Program

#Question id: 12624

#Unit 6. System Physiology – Plant

The immediate precursor of brassinolide is____

TLS Online TPP Program

#Question id: 12625

#Unit 6. System Physiology – Plant

Precursor of strigolactone biosynthesis  is___

TLS Online TPP Program

#Question id: 12626

#Unit 6. System Physiology – Plant

Strigolactone biosynthesis  takes place in____

TLS Online TPP Program

#Question id: 12627

#Unit 6. System Physiology – Plant

Strigolactones are synthesized from β-carotene,  synthesis of the intermediate carlactone, beyond which strigolactone biosynthesis diverges is takes place____

a) in a species-specific manner

b) in Non-species specific manner

c) Divergence is attributed to the functional diversity of MAX1 cytochrome P450 isoforms, which act on carlactone

d) Divergence is attributed to the functional diversity of MAX1 cytochrome P450 isoforms, which act on 5-Deoxystrigol

Which of the following combination from the above statement is true?