Practice Questions

TLS Online TPP Program

#Question id: 12908

Which statement is incorrect about CRISPR?

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

It was first identified as an adaptive immunity pathway in prokaryotes providing resistance to bacteriophage and analogous to the RNA interference process found in eukaryotes.
It does not utilize double-stranded sequence-specific breaks and does not repair using HDR via homologous recombination.
The system consists of two parts, a short synthetic guide RNA ( gRNA) and a nonspecific double-stranded endonuclease termed Cas9.
It is also possible to program Cas9 with multiple guide RNAs to allow multiplex site-specific editing for designing large deletions, inversions and translocations.

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TLS Online TPP Program

#Question id: 3003

#Section 2: General Biology

Which statement best characterizes the behavior of a bacterial culture during EXPONENTIAL GROWTH?

TLS Online TPP Program

#Question id: 1144

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is NOT a common intracellular second messenger?

TLS Online TPP Program

#Question id: 14729

#Section 1: Engineering Mathematics

The figure below shows the network connecting cities A, B, C, D, E and F. The arrows indicate permissible directions of travel. If Deepak from city A wants to visit city F, what is the probability he will pass through city C

TLS Online TPP Program

#Question id: 585

#Section 2: General Biology

In an enzyme reaction involving one enzyme and one substrate, the rate of the reaction depends on

TLS Online TPP Program

#Question id: 1605

#Section 2: General Biology

inhibition of class I presentation,