TLS Online TPP Program

#Question id: 23586


Which of the following is true, concerning the plasmid vector, pBR322?

#Unit 13. Methods in Biology
  1. It contains an origin of replication (ori).
  2. It contains genes which confer resistance to the antibiotics ampicillin and tetracycline.
  3. It contains a number of restriction sites that are useful for constructing RNA.
  4. Only A and B
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TLS Online TPP Program

#Question id: 26586

#Unit 3. Fundamental Processes

Telomeres form a looped structure in the cell called as t-loop and it is accomplished by

TLS Online TPP Program

#Question id: 11274

#Unit 10. Ecological Principles

Assimilation efficiency (AE) is the proportion of ingested energy assimilated in to blood stream but Production efficiency (PE) is the proportion of assimilated energy that is incorporated in to biomass. Following some statement is correct?

A. Assimilation efficiencies of aquatic herbivore is greater than terrestrial herbivore

B. Production efficiencies of higher tropic level are greater than lower tropic level

C. production efficiencies of vertebrate is less than invertebrate

D. Assimilation efficiencies of Carnivore are often greater than herbivore

TLS Online TPP Program

#Question id: 901

#Unit 1. Molecules and their Interaction Relevant to Biology

Proteins with high Tm values are generally stable at

TLS Online TPP Program

#Question id: 11481

#Unit 7. System Physiology – Animal

Which of the following sensory receptors is correctly paired with its category?

TLS Online TPP Program

#Question id: 10374

#Unit 6. System Physiology – Plant

The stages in the formation of the symbiotic relationship between the nitrogen-fixing bacteria and their host, Arrange the given statements of symbiotic association in a stepwise manner;

 a) Migration of the bacteria toward the roots of the host plant by a chemotactic response mediated by chemical attractants

b) NodD with the flavonoids bind with the Promoter region of  highly conserved the nod box

c) These attractants activate the rhizobial NodD protein,

d) The chemical attractants especially (iso)flavonoids and betaines, secreted by the roots

e) Binding of the activated NodD to the nod box induces transcription of the other nod genes

 Which of the following from the above statements are correct arrangement of symbiosis?