TLS Online TPP Program

#Question id: 8775


Use the following information to answer the question. Paulinella chromatophora is one of the few cercozoans that is autotrophic, carrying out aerobic photosynthesis with its two elongated "chromatophores." The chromatophores are contained within vesicles of the host cell, and each is derived from a cyanobacterium, though not the same type of cyanobacterium that gave rise to the chloroplasts of algae and plants. A crucial photosynthetic gene of the cyanobacterium that gave rise to the chromatophore is called psaE. This gene is present in the nuclear genome of the cercozoan, but is not in the genome of the chromatophore. This is evidence of ________.

#Unit 9. Diversity of Life Forms
  1. reciprocal mutations in the chromatophore and nuclear genomes
  2. horizontal gene transfer from bacterium to eukaryotes
  3. genetic recombination involving a protist and an archaean
  4. transduction by a phage that infects both prokaryotes and eukaryotes
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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?