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#Question id: 4551

Various types of σ factor in column I, that are involved in several other function given in column II

 I

II

I) σ70

a) Induced by unfolded proteins in the cytoplasm contain chaperones activity which refold unfolded proteins               

II) σs

b) Genes involved in flagellum assembly             

III) σ32

c) Genes for nitrogen metabolism and other functions

IV) σE

d) Housekeeping genes, most genes in exponentially replicating cells

V) σF

e) Activated by unfolded proteins in the periplasmic space and cell membrane; genes encoding proteins that restore integrity to the cellular envelope

VI) σ54

f) Stationary-phase genes and general stress response

 Which of the following combination is correct?

#Unit 3. Fundamental Processes

  1. I-c, II-b, III-a, IV-f, V-d, VI-e

  2. I-f, II-a, III-d, IV-e, V-b, VI-c

  3. I-d, II-f, III-a, IV-e, V-b, VI-c

  4. I-e, II-d, III-f, IV-a, V-b, VI-c

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TLS Online TPP Program

#Question id: 6625

#General Aptitude

Gisen set :       27 : 9
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#Question id: 15817

#Unit 8. Inheritance Biology

You and your lab partner have isolated 20 new mutant yeast strains that are defective in synthesis of threonine, an amino acid. These Thr- mutants do not grow on minimal medium, but they do grow on minimal medium supplemented with threonine. Ten of your Thr- mutants (numbered 1 through 10) were isolated in a strain of mating type a (MAT a). The other 10 Thrmutants (numbered 11 through 20) were isolated in a strain of mating type α (MAT α). You and your lab partner cross each of the MAT a strains to each of the MAT α strains, and you include crosses to the appropriate wild-type strains. Your experimental observations are shown in the table below, where (-) indicates diploids that did not grow on minimal medium and (+) indicates diploids that did grow on minimal medium

Based on these experiments, what is the minimum number of genes required for threonine synthesis?
TLS Online TPP Program

#Question id: 15848

#Unit 4. Cell Communication and Cell Signaling

viruses frequently expose unique chemical structures only during their replication inside host cells. Many of these can be detected via intracellular receptors that bind exposed chemical moieties while still inside the host cell. This can trigger an immediate antiviral response in the infected cell that blocks further virus replication. At the same time, this initiates the secretion of chemical warning signals sent to nearby cells to help them guard against infection (a neighborhood watch system!). virus is not recognised which receptor?
TLS Online TPP Program

#Question id: 21815

#Unit 12. Applied Biology

A new biosensor is described for the detection of S-nitrosothiols based on their decomposition by immobilized _________enzyme containing selenocysteine residue.
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#Question id: 5017

#Unit 11. Evolution and Behavior

Arrange these events from earliest to most recent.

1.  emission of lava in what is now Siberia at time of Permian extinctions

2.  emission of lava that solidified at the same time as iron-bearing terrestrial rocks began to rust

3.  emission of lava that solidified at the same time as rusted iron precipitated from seawater

4.  emission of lava in what is now India at time of Cretaceous extinctions