Practice Questions

TLS Online TPP Program

#Question id: 12463

Which of the following is primarily responsible for limiting the number of trophic levels in most ecosystems?

#Unit 10. Ecological Principles

Many primary and higher-order consumers are opportunistic feeders.
Decomposers compete with higher-order consumers for nutrients and energy.
Nutrient cycles involve both abiotic and biotic components of ecosystems.
Energy transfer between tropic levels is in almost all cases less than 20% efficient.

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TLS Online TPP Program

#Question id: 40548

#Unit 14. Methods in Biology

Molecular beacons (MB) and Taqman (TQ) are used as probes in Real time PCR experiments. Both these probes are based on the principle of FRET and employ a fluorophor (F) and a quencher (Q). However the mechanisms by which they function are different as illustrated below

At what stage of the PCR we would be able to detect fluorescence?

TLS Online TPP Program

#Question id: 26689

#Unit 14. Methods in Biology

After sequencing the genome of a new species you have obtained 2 ,500,000 reads each of 100-nt in length. Following assembly, the draft genome obtained is of 5 Mb size. What is the depth of coverage of the sequencing?

TLS Online TPP Program

#Question id: 26690

#Unit 14. Methods in Biology

Metagenomics refers togenomesequencing of a collection of

TLS Online TPP Program

#Question id: 21335

#Unit 14. Methods in Biology

In genomics, a contig means:

TLS Online TPP Program

#Question id: 5149

#General Aptitude

If the number 517 * 324 is completely divisible by 3, then the smallest whole number in place of * will be :

TLS Online TPP Program

#Question id: 5150

#General Aptitude

If the number 481* 673 is completely divisible by 9, then the smallest whole number in place of * will be :