Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 40593
TLS Online TPP Program

#Question id: 19637

The addition of carbonyl compound to HCN is an example of

#SCPH05 I Biotechnology
  1. Nucleophilic substitution
  2. Electrophilic addition
  3. Nucleophilic addition
  4. Electrophilic substitution
More Questions
TLS Online TPP Program

#Question id: 19381

#SCPH01 Biochemistry

Glyphosate resistance in plants can be generated by expressing in them transgenes that serve one of the following three purposes: 
(1) Overproduction of EPSPS enzyme 
(2) Encode an EPSPS enzyme that is tolerant to glyphosate
(3) Produce an enzyme that inactivates glyphosate
(4) Use a combination of the strategies (2) and (3)
Which of the above strategies can be used to make plants glyphosate resistant?
TLS Online TPP Program

#Question id: 4933

#SCPH28 | Zoology

What structure do protocells have in common with current cells?
TLS Online TPP Program

#Question id: 76

#SCPH05 I Biotechnology

Which of the following illustrations is not a structural isomer of an organic compound with the molecular formula C6H14? For clarity, only the carbon skeletons are shown; hydrogen atoms that would be attached to the carbons have been omitted.
TLS Online TPP Program

#Question id: 4571

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

Evolutionary trees such as this are properly understood by scientists to be
TLS Online TPP Program

#Question id: 920

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

Which of these is able to cross the inner mitochondrial membrane?