Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 16543
TLS Online TPP Program

#Question id: 12908

Which statement is incorrect about CRISPR?

#XL - S Microbiology
  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.
More Questions
TLS Online TPP Program

#Question id: 1114

#XL - Q Biochemistry

Sutherland discovered that the signaling molecule epinephrine is responsible for which of the following events?
TLS Online TPP Program

#Question id: 428

#XL - Q Biochemistry

The most biochemically complex organisms are ________.
TLS Online TPP Program

#Question id: 27585

#XL - U Food Technology

Rancidity is the spoilage of
TLS Online TPP Program

#Question id: 167

#XL - T Zoology

The formation of a peptide bond between two amino acids is an example of a(n) ______________ reaction.
TLS Online TPP Program

#Question id: 8290

#XL - S Microbiology

If, someday, an archaean cell is discovered whose rRNA sequence is more similar to that of humans than the sequence of mouse rRNA is to that of humans, the best explanation for this apparent discrepancy would be ________.