Practice Questions

TLS Online TPP Program

#Question id: 29055

Which of the following statements is correct about biogeochemical cycling?

#Unit 10. Ecological Principles

The phosphorus cycle involves the recycling of atmospheric phosphorus
The phosphorus cycle is a cycle that involves the weathering of rocks
The carbon cycle is a localized cycle that primarily involves the burning of fossil fuels
The carbon cycle has maintained a constant atmospheric concentration of CO2 for the past million years

More Questions

#Question id: 10776

#Unit 6. System Physiology – Plant

pyrethroids that occur in the leaves and flowers of Chrysanthemum species show very striking insecticidal activity. Pyrethroids are________

#Question id: 33373

#Unit 1. Molecules and their Interaction Relevant to Biology

#Question id: 4466

#Unit 3. Fundamental Processes

As well as synthesizing the transcript, RNA polymerase performs two proofreading functions on that growing transcript;

i. Pyrophosphorolytic editing

ii. Hydrolytic editing

Choose correct processes accordingly,

A. The polymerase backtracks by one or more nucleotides and cleaves the RNA product, removing the error-containing sequence.

B. In this, the enzyme uses its active site, in a simple back-reaction,

C. Catalyze the removal of an incorrectly inserted ribonucleotide, by reincorporation of PPi

D. The enzyme can then incorporate another ribonucleotide in its place in the growing RNA chain.

#Question id: 1934

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a component that has often been used in chimeric antigen receptors (CARs)?

#Question id: 12685

#Unit 13. Methods in Biology