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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: 9200

#SCPH06 I Botany

During the inventory of bacterial genes present in the Sargasso Sea, a deep isolated area in the middle of the Atlantic Ocean, a research team concluded that at least 1,800 bacterial species were present. Based on what you might predict about the habitat structure of such an area, what kind of bacterial diversity would you expect to see in tropical coral reef waters?
TLS Online TPP Program

#Question id: 589

#I Life Science/ Life Sciences Group – I-V

When varying the substrate concentration at a fixed concentration of enzyme it is observed that at low concentrations of substrate the reaction is ________,while at high concentrations of substrate the reaction is ________.
TLS Online TPP Program

#Question id: 12731

#SCPH28 | Zoology

Choose the correct codon for phenylalanine.
TLS Online TPP Program

#Question id: 4330

#SCPH28 | Zoology

Proto-oncogenes can change into oncogenes that cause cancer. Which of the following best explains the presence of these potential time bombs in eukaryotic cells?
TLS Online TPP Program

#Question id: 1707

#SCPH01 Biochemistry

The thoracic duct: