TLS Online TPP Program

#Question id: 11725


Given some statements about the roles of phytochrome and gibberellin in shade avoidance response;

A) In direct sunlight, red light predominates and the Pfr form of phytochrome moves into the nucleus.

B) Under a plant canopy, the light is enriched in far-red wavelengths. Phytochrome is in the inactive Pr form.

C) As PIF proteins accumulate, PIF-induced gene expression increases, promoting stem elongation.

D) Phy causes the turnover of PIF proteins, which act as negative regulators of  photomorphogenesis

E) In the absence of Pfr, PIFs are not degraded, the sensitivity to gibberellin increases, causing the degradation of DELLA repressors

F) As a result, DELLA repressors bind PIF and prevent the transcription of PIF-regulated gene, In the absence of PIF-induced gene expression, stem growth is limited.

Find out the correct sequence of these responses.

#Unit 6. System Physiology – Plant
  1. A→C→F→B→D→E
  2. A→D→B→C→E→F
  3. E→C→B→A→F→D
  4. A→D→F→B→E→C
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TLS Online TPP Program

#Question id: 15479

#Unit 12. Applied Biology

Out of the following what usually supports the fastest growth rate and is therefore considered the preferred nitrogen source for E. coli

TLS Online TPP Program

#Question id: 15480

#Unit 12. Applied Biology

Feedback repression involves the turning “off” of enzyme synthesis when the amount of the product has been made in sufficient quantities. The end product of the pathway acts as

TLS Online TPP Program

#Question id: 15481

#Unit 12. Applied Biology

One of the approaches for the bacterial strain improvement for primary metabolite include

TLS Online TPP Program

#Question id: 15482

#Unit 12. Applied Biology

Over expression of primary metabolites are often achieved by
1. Frequency of RNA polymerase binding to the promoter region
2. Copy number increase of structural genes for these enzymes by genetic engineering
3. Chemically derived protein
Which combination below represent correct option?

TLS Online TPP Program

#Question id: 15483

#Unit 12. Applied Biology

A novel technique for strain improvement combining the advantage of multi-parental crossing allowed by DNA shuffling with the recombination of entire genomes.

TLS Online TPP Program

#Question id: 15484

#Unit 12. Applied Biology

Microbial process produces l-form of amino acids which makes the process advantageous as compared to synthetic processes. Strains employed for amino acid 1. 1. 1. production are 
1. wild-type strains 
2. auxotrophic mutants
3. regulatory mutants
4. auxotrophic regulatory mutants
Which of the following combination has correct options