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TLS Online TPP Program

#Question id: 12309

Which statement below about mating behavior is incorrect?

#Unit 10. Ecological Principles
  1. Some aspects of courtship behavior may have evolved from agonistic interactions.
  2. Courtship interactions ensure that the participating individuals are nonthreatening and of the proper species, sex, and physiological condition for mating.
  3. The degree to which evolution affects mating relationships depends on the degree of prenatal and postnatal input the parents are required to make.
  4. The mating relationship in most mammals is monogamous, to ensure the reproductive success of the pair.

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TLS Online TPP Program

#Question id: 20990

#Unit 12. Applied Biology

Anaerobic conversion of toluene to which compound occurs in the anaerobic zone of a crude oil-contaminated aquifer.
TLS Online TPP Program

#Question id: 4091

#Unit 3. Fundamental Processes

To avoid being degraded by nuclear exonucleases, nascent transcripts, pre-mRNA-processing intermediates, and mature mRNAs in the nucleus must have their ends protected. Which of the following mechanism are present in the cell to protect mRNA from degradation?

I. The 5′ cap is protected because it is bound by a heterodimeric nuclear cap-binding complex (CBC), which protects it from 5′ exonucleases and also functions in export of the mRNA to the cytoplasm.

II. 5’-5’ phosphodiester bond in the cap of mRNA plays crucial role in protection

III. The 3′ end of a nascent transcript lies within the RNA polymerase and is thus inaccessible to exonucleases 
TLS Online TPP Program

#Question id: 20970

#Unit 12. Applied Biology

Which protein has been produced generating a transgenic sheep that is used for replacement therapy for individuals at risk from emphysema?
TLS Online TPP Program

#Question id: 11268

#Unit 10. Ecological Principles

Consumption efficiency (CE) is the proportion of production at one trophic level that is eaten by, or ingested, by the next trophic level but Assimilation efficiencies (AE) is the proportion of ingested energy that is assimilated into the bloodstream. Which of the Following statement is correct?
TLS Online TPP Program

#Question id: 975

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the source of the C-6 atom during de novo biosynthesis of purines?