91. Vinblastine, a chemotherapeutic agent, inhibits
(A) microtubule polymerization92.The antibiotic that resembles the 3' end of the charged tRNA molecule is
(B) microtubule depolymerization
(C) spindle formation
(D) actin polarisation
93. Which one of the following is not an antigen presenting cell?
(A) dendritic Cell94. Bird flu in last decade was caused by
(B) B Cell
(D) Natural Killer cell
(A) H5N195. Ultraviolet radiation causes DNA damage by formation of
(A) cytidine dimer96. Which one of the following microbes removes oil spills by digesting hydrocarbons?
(B) thymidine dimer
(C) adenine dimer 5
(D) guanine dimer
(A) Helicobacter sp.97. The smallest genome among the plants listed below is that of
(B) Pseudomonas sp.
(C) Trichoderma sp.
(D) Staphylococcus sp.
(A) Gossypium sp98. Porins
(B) Oryza sativa
(C) Arabidopsis thaliana
(D) Arachis hypogaea
(A) are cytoskeletal proteins99. nif genes which encode the nitrogenase complex and other enzymes involve
(B) form channels which allow passage of hydrophilic molecules
(C) are fatty acids
(D) are pores in the stem of a plant
(A) ammonification100. ABA is a
(B) nitrogen fixation
(A) growth promoterAnswers:
(B) stress hormone
91. (A) microtubule polymerization
92. (B) Puromycin
93.(D) Natural Killer cell
94. (C) H1N1
95. (B) thymidine dimer
96. (B) Pseudomonas sp. (Pseudomonas aeruginosa)
97. (C) Arabidopsis thaliana
98. (B) form channels which allow passage of hydrophilic molecules
99. (B) nitrogen fixation
100. (B) stress hormone