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50. Which is not true about
sphaerosomes?
a) Arise from ER
b) Single membrane bound structures
c) Related to fats
d) Involved in photorespiration.
Ans.
Involved in photorespiration
51. Recognition sequence of Eco RI
is _____________.
Ans.
GAATTC
52. Which enzyme joins the DNA fragments?
a) DNA ligase b) DNA polymerase
c) Topoisomerase d) DNA
gyrase,
Ans. DNA
ligase,
53. Which has ds RNA ?
a) Reovirus
b) Cauliflower Mosaic virus
c)  x 174
d) TMV.
Ans.
Reovirus.
54. Which one of the following has vascular
tissue, produces spores but no seeds ?
a) Pteridophytes b) Bryophytes
c) Angiosperrns d) Gymnosperms.
Ans.
Pteridophytes.
55. Endosperm in
gymnosperm is_______________.
Ans. Haploid,
56. Blight of rice is caused
by ________________.
Ans. Xanthomonas
oryzae.
57. Litmus is obtained from___________.
Ans. Lichen
58. In confocal microscope, the specimen is
illuminated by_____________.
Ans. Laser beam.
59. Most diversified family of monocot
is _________________.
Ans.
Orchidaceae.
60. Which is the female reproductive part
of bryophytes ?
a) Sporangium b) Archegonium
c) Oogonium d)
Antheridium.
Ans. Archegonium
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61. Choose correct one. All protozoans have
(VST - F.T - 09)
a) Pseudopodia b) Contractile vacuole
c) Holozoic nutrition
d) Eukaryotic organization
Ans. Eukaryotic organization
62. Corpus luteum secretes ___________.
(WAT JEE - 13)
Ans.
Progesterone
63. Phenotypic ratio of monohybrid taste
cross is _____________.
Ans. 1:1
64. A touch on the right hand stimulates
neurons in _____________.
Ans. Left somatic sensory area
65. Which is not related with the sexual
reproduction in protozoans
a) Schizogony b) Cytogamy
c) Autogamy d) Conjugation
Ans. Schizogony
66. Middle piece of the sperm contains ______.
Ans.
Mitochondria and Axial filament
67. Down's Syndrome common in
a) Mother above age 35
b) Mother below age 17
c) During its first pregnancy
d) Mother atleast contains four child
Ans. Mother above age 35
68. Serum is ____________.
(WAT JEE - 02)
Ans.
Blood without corpuscles & fibrinogens
69. Percentage of recombination between A
and B is 9%. A & C is 17%, B & C is 26%.
Then the arrangement of genes is ________.
Ans.
BAC
70. Inner layer of Bowman's capsule
possesses _________.
Ans.
Podocytes
71. According to Darwinsm fossils of
organisms found in south america resembles most _________.
Ans.
Fossils of Australia
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