Biotechnology : Principles and Processes

Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?

• A: Triglycerid e- major - source of energy
  
  

• B: Uracil - a component of DNA

• A - Lecithin - a component of cell membrane

• A - Lecithin - a component of cell membrane

Maximum number of existing transgenic animals is of 

• mice 

• cow

• pig

• pig

Which one of the following organisms is not an example of eukaryotic cells?

• Escherichia Coil

• Euglena Viridis

• Amoeba proteus

• Amoeba proteus

When two unrelated individuals or lines are crossed, the performance of F₁ hybrid is often superior to both its parents. This phenomenon is called

• transformation

• splicing

• metamorphosis

• metamorphosis

Bacillus thuringiensis forms protein crystals, which contain insecticidal protein

• binds with epithelial cells of midgut of the insect pest ultimately killing it

• is coded by several genes including the gene cry

• is acitvated by acid of pH of the foregut is the insect pest

• is acitvated by acid of pH of the foregut is the insect pest

In history of biology, human genome project led to the development of 

• biotechnology

• biomonitoring

• bioinformatic 

• bioinformatic 

The genetically - modified (GM) brinjal in India has been developed for 

• insect - resistance

• enhancing self- life

• enhancing mineral content

• enhancing mineral content

Restriction endonucleases are enzymes which

• make cuts at specific positions within the DNA molecule

• recognize a specific nucleotide sequence for binding of DNA ligase

• restrict the action of the enzyme DNA polymerase

• restrict the action of the enzyme DNA polymerase

Stirred -tank bioreactors have been designed for 

• the addition of preservatives of the product

• purification of the product

• ensuring anaerobic conditions in the culture vessel

• ensuring anaerobic conditions in the culture vessel

What is true about Bt toxin

• The inactive protoxin gets converted into active form in the insect gut

• Bt protein exists as active toxin in the bacillus

• The activated toxin enters the ovaries of the pets to sterilise it and thus prevent its multiplication

• The activated toxin enters the ovaries of the pets to sterilise it and thus prevent its multiplication