Class 12 Biology MCQs Chapter – 12
21. If blood strain was found from the murder site. What will be the proper way to test for DNA profile ?
( A ) RBC
( B ) WBC
( C ) Platelets
( D ) Plasma
Answer-( B )
22. The permanent treatment of hereditary defect ‘ADA’ (Adenosine Deaminase Deficiency) is done by :
( A ) Enzyme Transfer therapy
( B ) Introduction of Lymphocyte having active ADA & ĆDNA by Genetic engineering
( C ) to activate adenosine deaminase
( D ) Introduction of Bone marrow cells into early embryonic stage.
Answer-( D )
23. In man alzeimer disease is due to deficiency of
( A ) Dopamine
( B ) Glutamic acid
( C ) Acetylcholine
( D ) Gama amino butyric acid
Answer-( C )
24. Monoclonal antibody is obtained from
( A ) one antigen from one parent
( B ) one antigen from many parents
( C ) many antigens from one parent
( D ) many antigens from many parents
Answer-( B )
25. Which of the following organelles is related to genetic engineering ?
( A ) Plastids
( B ) Plasmids
( C ) Mutations
( D ) Hybrid vigour
Answer-( B )
26. Chlorella is a type of
( A ) Bacteria
( B ) Algae
( C ) Protozoa
( D ) Single Cell protein
Answer-( B )
27. ‘Flaver Savr’ is a
( A ) Pesticide
( B ) Chicken breed
( C ) Transgenic Tomato
( D ) Insecticidal Protein
Answer-( C )
28. The first clinical gene therapy was given for
( A ) Adenosine Deaminase Deficiency
( B ) Chicken pox
( C ) Diabetes mellitus
( D ) Rheumatoid Arthritis
Answer-( A )
29. The first transgenic cow was named
( A ) Daisy
( B ) Maizy
( C ) Dolly
( D ) Rosie
Answer-( D )
