SSC FCI AG-III Mains Exam – Biological Science Paper (Part II)
April 25, 2012 12 Comments
SSC Food Corporation of India (FCI) Recruitment Exam 2012
Main exam for Assistant Grade – III Posts
Solved Paper of Biological Sciences held on 15 April 2012
PART-II [51-100] (correct answers are highighted in deep saffron color)
|51. Nyctalopia is caused due to the defficiency of vitamin
Nyctalopia also called Night blindness is caused by defficiency of vitamin A.
|52. Gout is characterised by the accumulation of
c) Uric acid
Gout is a metabolic disease characterized by the accumulation of excessive uric acid in the blood.
|53. Number of pollar bodies produced after first meiotic division during oogensis is
|54. Centrolecithal eggss are found in
|55. The Indian scientist who received the Nobel Prize for having synthesised ‘Polyribonuleotides’ is
a) Marshall Warren Nirenberg
b) Venktaraman Ramakrishanan
c) Amrtya Sen
d) Har Gobind Khorana
The Nobel Prize in Physiology or Medicine 1968 was awarded jointly to Robert W. Holley (USA),
Har Gobind Khorana (India) and Marshall W. Nirenberg (USA) “for their interpretation of the genetic code
and its function in protein synthesis”.
|56. Baldness in man is an example for _____________ genes.
b) Sex – limited
c) X – Linked
d) Z – Linked
|57. Polymorphism may be developed by ___________ selection.
|58. Assertion (A) : Sodium ions move slower than glucose molecule across the plasma memberane.
Reason (R) : Plasma membrane contains protien.
a) Both A nd R are true but R is not the correct reason for A
b) Both A and R true, and R is the correct reason for A
c) A is true, but R is false
d) A is false, but R is true
|59. The niche of a population is the
a) place where it lives
b) geographical area it covers
c) set of conditions and resources it uses
d) set of interactions it has with other populations
|60. The science of improving the hereditary qyualities of human species of future generation is called
|61. The defficiency of _______________ vitamin causes beri-beri.
c) Pantothenic acid
|62. The synthesis of prothrombin by the liver cells is stimulated by
a) Vitamin A
b) Vitamin K
c) Vitamin E
d) Vitamin D
|63. Which one of the following minerals is essential for blood coagulation?
|64. Limulus is an example of a living fossil that belongs to
|65. First recombinant vaccine is availalble for
b) Small pox
c) Hepatitis B
|66. Polio is spread through
b) Water contamination
c) Air contamination
d) Direct contact
Polio is air-borne, spread through the respiratory system.
|67. Which of the following is not correct about the size of the organisms?
a) Viruses – 0.07 – 0.10 m
b) Amoeba – 8.00 – 15.0 m
c) Bacteria – 0.5 – 2.50 m
d) Euglena – 100 m – 200 m
Bacteria : 0.20 – 2.50 m
|68. Acetylcholine is secreted by
a) Endothelial cells
b) Nerve cells
c) Brunner’s gland
d) Pancreatic exocerine cells
|69. The term chromosome was coined by
a) W. Flemming
b) W. Waldeyer
c) Richard Altman
d) Seymour Bezer
|70. In which stage does the reduction in chromosome number take place during meiosis?
a) Prophase – I
b) Anaphase – I
c) Metaphase – I
d) Metaphase – II
|71. A cross between an F1 hybrid and any one of the parentsw from which it is derived is
a) Monohybrid cross
b) Dihybrid cross
c) Back cross
d) Test cross
|72. a – Thalassaemia major is
a) inability to synthesize adult haemoglobin
b) premature red blood cell destruction
c) haemoglobin and shortening of red blood cell life span
d) no functional and separate delta and b – globin chain genes
|73. Crossing over brings
a) cytoplasmic reorganization
b) recombination of genes
c) complete linkage
d) no significant change
|74. Somatic hybrids are produced by
a) protoplasmic fusion
b) tissue culture
c) pollen culture
d) hybridoma process
|75. ____________ enzyme catalyses the removal of hydrogen from one substrate and passes
it on to a second substrate.
|76.Wilson’s disease is due to the defficiency of
|77. Daily requirement of vitamin B1 is ________ mg.
a) 1-5 to 2.0
b) 0.5 to 1.0
c) 3 to 5
d) 1 to 2
|8. These enzymes exist in two or more forms which have the same function, but they differ
physically and chemically
|79. Choose the wrong pair.
a) Flame cells – Platyhelminthes
b) Nephridium – Amphioxus
c) Malpighian tubules – Insects
d) Green glands – Crustacea
|80. Egg with miniral yolk evenly distributed is called as
|81. Hydrochloric acid in the stomach is secreted by
a) Argentaffin cells
b) Peptic cells
c) Mucous neck cells
d) Oxyntic cells
Parietal cells (also called oxyntic cells) are the stomach epithelium cells which secrete gastric acid (hydrochloric acid).
|82. Enzyme sucrose converts sucrose into
a) Glucose + Fructose
b) Glucose + Glucose
c) Glucose + Galactose
d) Glucose + Maltose
|83. If the centromere divides the chromosome into two qnequal arms, it is termed as
|84. __________ is an autoimmune disease.
c) Rheumatoid arthritis
|85. Development of gut is called as
|86. The process by which cells gradually specialize to undergo changes in the shape and function
is known as _____________ differentiation.
|87. Which of the following statements is not correct about test tube baby?
a) This method provides baby to infertil couple
b) People who produce fertile egg but their health may not permit to bear children
c) It provides opportunity to get babies of desired sex
d) The rate of success is high
|88. Which one of the following is not a characteristic feature of cancer?
a) A tumour arises from an existing tissue or cells of the body
b) They have greater potentiality for growth and multiplication
c) They carry out the functions of normal adult cells
d) They have large and irregular nuclei
|89. Carcinoma means
a) a tumour arising from any connective tissues
b) a tumour arising from any fibrous tissues
c) a tumour arising from epithelial cells
d) tumours of bone
|90. First land vertebrates – amphibians developed during _______________ period.
|91. Which of the following is not an arthopod character exhibited by Peripatus?
a) Clawed and pseudo segmented walking legs
b) Presence of thick cuticle
c) Presence of trachea as respiratory organ
d) Presence of antennae
|92. Select the correct sequence of evolution with reference to elephant.
a) Meritherium – Stegodon – Mammoth – Palaemastodon – Elephas – Loxodonta
b) Meritherium – Mammoth – Palaemastodon – Stegodon – Elephas – Loxodonta
c) Meritherium – Palaemastodon – Stegodon – Mammoth – Elephas – Loxodonta
d) Meritherium – Palaemastodon – Elephas – Stegodon – Mammoth – Loxodonta
|93. Assertion (A) : Dark-skinned people and blacks are more prone to UV exposures.
Reason (R) : Efficiency of UV rays are as carcinogen depends on melanin pigmentation.
a) A is correct, but R is wrong
b) A is wrong, but R is correct
c) Both A and R are correct, and R is the explanation of A
d. Both A and R are correct, and R is not the explanation of A UV light penetrates the skin for a few millimetres only so that its effect is limited to epidermis. The efficiency of
UV light as carcinogen depends upon the extent of light-absorbing protective melanin pigmentation of the skin.
|94. Which of these is a non-esential amino acid?
|95. Supperssion of gene of one locus by a gene in other locus is called
d) Incomplete dominance
|96. Mobile segments of DNA that can disrupt the function of the gene that they are insert into and
cause are known as
|97. The type of interaction between two species where protozen Trichonympha lives in the gut
of termites for cellulose digestion is reffered to as
|98. Centres for regulation of heart beat are situated in the brain at
a) Cerebral hrmispheres
b) Medulla oblongata
d) Pons Varolii
|99. A : Insulin increases conversion of glucose into glycogen
B : Insulin increases the oxidation of glucose
C : Insulin reduces blood sugar level
a) A and B only are correct
b) A and C only are correct
c) A, B and C all are correct and Aand B are not the reason for C
d) A, B and C all are correct and Aand B are the correct reason for C
Insulin decreases blood sugar levels. When your blood sugar level rises, the Islets of Langerhans, a special group
of cells in the pancreas secrete MORE insulin. Insulin increases glucose utilization by making cells more permeable
to glucose, and blood sugar levels are returned to a normal range. Insulin promotes not only the entry of glucose
into the cells, but also facilitates its oxidation within the cells.
|100. Which of these is secreted by corpus luteum in a pregnant woman?
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