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261.The simplest amino acid is
A.     alanine
B.     glycine
C.    valine
D.    phenylalanine

262.Accumulation of lipid molecules in brain cells lead to
A.     paralysis
B.     oedema
C.    mental retardation
D.    all of these

263.The life and activities of a cell is controlled by
A.     cytoplasm
B.     nucleus
C.    vacuole
D.    mitochondria

264.Flagella are composed of
A.     micro tubules
B.     micro filaments
C.    intermediate filaments
D.    glycoproteins

265.Tobacco mosaic virus was crystallized by
A.     Pasteur
B.     Chamberland
C.    Stanely
D.    Ivanowski

266.Non-enveloped naked viruses are known as
A.     prions
B.     bacteriophages
C.    oncoviruses
D.    virions

267.Gram +ve bacteria on treatment with crystal violet dye give colour
A.     red
B.     green
C.    purple
D.    pink

268.Malarial parasite is injected into man as
A.     sporozoites
B.     merozoites
C.    zygote
D.    none of these

269.The terms procariotique and eucariotique were proposed by
A.     Whittaker
B.     Chatton
C.    Haeckel
D.    Margulis and Schwartz

270.The most common type of asexual reproduction in the fungi is
A.     fragmentation
B.     spore production
C.    budding
D.    binary fission
ANSWERS:
261.B
262.C
263.B
264.A
265.C
266.D
267.C
268.A
269.B

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