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151. Credit for establishing nucleus as biological entity goes to
A. Leeuwenhoek
B. Schwann
C. Koch
D. Robert Brown
Explanation:
152. First successful tissue culture was that of
A. Tomato root
B. Carrot root
C. Potato stem
D. Tobacco callus
Explanation:
153. Functionally important dead cells are
A. Cork cells
B. Tracheary elements
C. Both A and B
D. Endothelial cells
Explanation:
154. Efficient large sized cells should be
A. Elongated
B. Branched
C. With membrane extensions
D. Any of the above
Explanation:
155. White performed successful tissue culture in
A. 1939
B. 1932
C. 1929
D. 1922
Explanation:
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