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TLS Online TPP Program

#Question id: 12908

Which statement is incorrect about CRISPR?

#SCPH01 Biochemistry
  1. 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. 
  2. It does not utilize double-stranded sequence-specific breaks and does not  repair using HDR via homologous recombination.
  3. The system consists of two parts, a short synthetic guide RNA ( gRNA) and a nonspecific double-stranded endonuclease termed Cas9. 
  4. 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: 385

#SCPH05 I Biotechnology

In which reaction below does water not participate as a reactant (rather than as a product)?
TLS Online TPP Program

#Question id: 386

#SCPH05 I Biotechnology

Which of the following properties of water does not contribute to the fitness of the aqueous environment for living organisms?
TLS Online TPP Program

#Question id: 386

#SCPH05 I Biotechnology

Which of the following properties of water does not contribute to the fitness of the aqueous environment for living organisms?
TLS Online TPP Program

#Question id: 387

#SCPH05 I Biotechnology

For a weak acid with a pKa of 6.0, What would be the ratio of acid to salt at pH 5.
TLS Online TPP Program

#Question id: 387

#SCPH05 I Biotechnology

For a weak acid with a pKa of 6.0, What would be the ratio of acid to salt at pH 5.
TLS Online TPP Program

#Question id: 388

#SCPH05 I Biotechnology

Calculate the pH of a solution prepared by mixing 2.0 mL of a strong acid solution of pH=3.0 and 3.0 mL of a strong base of pH=10.0.