TLS Online TPP Program
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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?
TLS Online TPP Program
#Question id: 12628
#Unit 6. System Physiology – Plant
Brassinosteroids biosynthesis precursor is______
TLS Online TPP Program
#Question id: 12629
#Unit 6. System Physiology – Plant
During the biosynthesis of brassinosteroid derived from the sterol campesterol follows two types of the pathway
i) Late C-6 oxidation pathway
ii) Early C-6 oxidation pathway
follows the different reaction performing in each pathways such as,
a) Campesterol → Campestanol →6-Deoxoteasterone→ Castasterone→Teasterone →Brassinolide
b) Campesterol → 6-Oxocampestanol →Cathasterone →Teasterone → Castasterone →Brassinolide
c) Campesterol → Campestanol →6-Deoxocathasterone →6-Deoxoteasterone → Castasterone →Brassinolide
Find the correct combination of the each oxidation pathway with its performing sequences;
TLS Online TPP Program
#Question id: 12630
#Unit 6. System Physiology – Plant
Bioactive brassinosteroid levels are also modulated by a variety of inactivation or catabolic reactions, except;
a) epimerization
b) hydroxylation
c) Phosphorylation
d) Sulfonation
e) Ubiquitinylation
f) Conjugation to glucose or lipids