Biotechnology and its Applications

Home > Zoology (37) > Biotechnology and its Applications (3)
Q1. Consider the given two statements:
Assertion (A): Bt cotton plants are resistant to insect pests like the bollworm.
Reason (R): The Bt toxin produced in these plants is harmless to mammals and to bacillus itself.

Choose the correct option.

  • Both(A)and(R)are True and(R)is the correct explanation of(A).
  • Both(A)and(R)are True but(R)is not the correct explanation of(A).
  • (A)is True but(R)is False.
  • (A)is False but(R)is True.
Q2. Match each item in Column I with one in Column II and select the correct match from the codes given:
Column I Column II
A PCR P E.coli plasmid
B ELISA Q DNA amplification
C Human insulin R Retrovirus
D Gene therapy S Antigen-antibody interaction
  • Q   S   R   P
  • Q   S   P   R
  • S   Q   P   R
  • S   Q   R   P
Q3. Why was the transgenic cow Rosie considered significant in biotechnology?
  • It produced genetically modified cow milk with a higher fat content for better commercial use.
  • It produced milk enriched with human alpha-lactalbumin, making it more suitable for human infants.
  • It was the first cloned animal that could produce medicinal proteins in its milk.
  • It was developed using CRISPR technology to enhance milk yield and improve resistance to diseases.