AMU PMT Biology Paper Answered 2009

Dear Students,
We are providing you all the clues and answeres to the AMU Biology Paper 2009 (Exam held 28th May). The complete question papers with hints would be available in forthcoming issue of Competitive Book , Pradeep’s Objective Biology, 2009 June Edition. The questions were in Objective format.

What is so interesting about Allen’s Rule ?
Allen’s rule
A biological rule given by Joel Asaph Allen in 1877. According to him endotherms from colder climates usually have shorter limbs (or appendages) than the equivalent animals from warmer climates.

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How is LUCY famous for ?

Lucy (Australopithecus afarensis) was an adult female fossil of about 25 years. About 40% of her skeleton was found, and her pelvis, upper leg and tibia show her to have been bipedal. Although there is evidence that afarensis was also partly arboreal (tree-dwelling). She was about 107 cm (3’6″) tall and about 28 kg in weight.
Humans have much shorter arms compared to their legs than chimpanzees and Lucy, interestingly, falls roughly in the middle.

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What do you mean by photochemical smog ?

Photochemical smog is a mixture of pollutants. It includes partculates,nitrogen oxides, ozone, aldehydes, peroxyethanoyl nitrate (PAN), unreacted hydrocarbons, etc. The smog often has a brown haze due to the presence of nitrogen dioxide. It causes painful eyes.

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What is Winterbottom’s Sign ?

A early symptom of African trypanosomiasis, a disease caused by the parasites Trypanosoma brucei rhodiense and Trypanosoma brucei gambiense It is more commonly known as African sleeping sickness.
Winterbottom’s sign includes swelling of lymph nodes (lymphadenopathy) along the back of the neck, in the posterior cervical lymph nodes. This is because trypanosomes travel in the lymphatic fluid and cause inflammation.

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AMU PMT Biology Sample Paper 2009

1. In Pinus roxburghii, the common pine tree, microsporophyll are having :
(a) 2 microsporangia on abaxial side of microsporophyll
(b) 4 microsporangia on adaxial side of microsporophyll
(c) 2 microsporangia on adaxial side of microsporophyll
(d) 4 microsporangia on abaxial side of microsporophyll.

2. Megasporophylls which are arranged spirally and acropetaly on the central axis of the female cone of Pinus bear:
(a) 4 megasporangia on dorsal surface
(b) 2 megasporangia on ventral surface
(c) 2 megasporangia on dorsal surface
(d) 4 megasporangia on ventral surface.

3. In a vast marine ecosystem, certain sea developed colouration. This red colour is due to the presence of large population of -which one of the following organisms :
(a) certain members of Rhodophyta
(b) Physarium
(c) dinoflagellates
(d) diatoms and members of red algae.

4. Like angiospermic parasite such as Cuscuta, there are some parasitic forms of Rhodophyta, which are colourless, heterotrophic and grow on other members of Rhodophyta. Select which one is a parasitic form of red algae :
(a) Gelidium
(b) Harveyella
(c) Choridras
(d) both (a) & (b).

5. If sporangia are developed from a single initial cell, the development of sporangia is designated as
(a) eusporangiate
(b) leptosporangiate
(c) monosporangiate
(d) polysporangiate.

6. The neck of archegonium of Pinus roxburghii is made up of :
(a) 8 cells arranged in 4 tiers of 2 cells each
(b) 8 cells arranged in 2 tiers of 4 cells each
(c) 4 cells arranged in 2 tiers of 2 cells each
(d) none of the above.

7. It is matter of common observation that monocots and dicots have one and two cotyledons respectively but in gymnosperms the numer of cotyledons are:
(a) always 3
(b) 3-18
(c) 2-5
(d) variable 1-2.

8. Oenothera type of female gametophyte is always:
(a) 8 nucleate and 7 celled
(b) 16 nucleate and 13 celled
(c) 8 nucleate and 8 celled
(d) 4 nucleate and 4 celled.

9. Which one of the following is the most common types of embryo sac:
(a) allium type
(b) oenothera type
(c) polygonum type
(d) adoxa type

10. If the chromosome number of cells of nucellus of megasporangium of Pinus is 16 what would be the chromosome number of endosperm cells:
(a) 32
(b) 16
(c) 48
(d) 08.

11. lf Ca of 2-celled proembryo divides longitudinally and the Ca and Cb transversely both contribute to the development of embryo, this type of the embryogeny would be :
(a) onagrad
(b) astrad
(c) solanad
(d) both a and b

12. lf Ca of 2-celled proembryo divides transversly the embryogeny would be
(a) solanad and Asterad type
(b) chenopodiad and Onagrad type
(c) caryophyllad and Onagrad type
(d) solanad and Chenopodiad type.

13. Parthenium argentatum which is commonly,known as ‘Guayule’ provides which one of the following commercial products:
(a) para-rubber
(b) a product equivalent to para-rubber
(c) chewing gum
(d) Jo-jo-ba oil.

14. Ectomycorrhiza is commonly found in:
(a) Pinus
(b) Quercus
(c) Rhododendron
(d) all of the above.

15. One of the most important raw material for paper and pulp industry comes from our vast forest resources, select the source for paper and pulp industry extensively used in our country:
(a) Dendrobium
(b) Diospyros
(c) Dendrocalamus
(d) Cedrus.

16. Under the umbrella of social forestry a system has been launched in which agriculture and forestry are involved. Select the name of the system:
(a) block cutting system
(b) jhum cultivation system
(c) taungya system
(d) none of them.

17. Electrostatic precipitators are extensively employed to control:
(a) water pollution
(b) air pollution
(c) radioactive pollution
(d) none of the above.

18. Cyclone collectors are nowadays commonly used to control:
(a) air pollution with special reference to dust particles
(b) radioactive pollution
(c) water pollution in general
(d) water pollution with special reference to Ganga Action Plan,

19. Myrmecophily is a beneficial association between some organisms and some flowering plants such as Cassia. Select the correct organism from the following:
(a) bacteria
(b) mycoplasma
(c) honey bees
(d) ants.

20. Reindeer Moss which is the most important and staple food for Reindeer in Arctic region belongs to which group of plants:
(a) algae
(b) bryophyta
(c) lichens
(d) pteridophyta.

21. Cauliflorous flowers are commonly found in which one of the following plants:
(a) Cassia
(b) Brassica (Cauliflower)
(c) Polyalthia
(d) none of the above.

22. The botanical name of cauliflower is:
(a) Brassica oleraceavar. capitata
(b) Brassica oleracea var. gongoloides
(c) Brassica oleracea.
(d() none of these

23. Ligulate leaves are found in:
(a) myrtaceae
(b) compositae
(c) poaceae
(d) cyperaceae.

24. The phenomenon of anisophylly where 2 different sizes of leaves are found is exhibited in which one of the following plants:
(a) Ranunculus aquatalis
(b) Limnophila heterophyllum
(c) Cabomba stellaris
(d) none of them.

25. In opposite phyllotaxy, if the leaves are of different size and arranged alternately, the phenomenon is termed as:
(a) distichous
(b) pentastichous
(c) anisophylly
(d) heterophylly.

26. Ligulate flowers are the diagnostic character of which one of the following family:
(a) graminae
(b) asteraceae
(c) brassicaceae
(d) papilionaceae.

27. If an angiospermic plant produces staminate, pistilate and bisexual flowers on the same inflorescence, the condition would be termed as:
(a) dioecious
(b) trioecious
(c) polygamous
(d) andro-gynoecious.

28. There are certain plant species which flower only once in their lifespan. This condition is named as:
(a) polygamous
(b) polycarpic
(c) monocarpic
(d) pericarpic.

29. In order to check the purity of honey and its source, pollen grains are being studied in a sample of honey. Such a study is called as:
(a) aeropalynology
(b) palynology
(c) melittopalynology
(d) latropalynology.

30. If both the anthers and filaments are fused together to form a compact structure with sigmoid in appearance the condition is termed as:
(a) syngenesious
(b) androecious
(c) syngynandrous
(d) synandrous.

31. If the anthers are fused together forming a tubular structure while the filaments remain free, the condition is found in which one of the following family:
(a) malvaceae
(b) cucurbitaceae
(c) solanaceae
(d) asteraceae.

32. If the anthers are fused to form a tubular structure whereas the filaments remain free, the condition is termed as:
(a) epipetalous – syngenesious
(b) epipetalous – synandrous
(c) polyandrous
(d) none of them.

33. Synandrous condition of stamens, where both anthers and filaments are fused to form a compact structure is found in :
(a) Luffa
(b) Lagenaria
(c) Lilium
(d) both a and b.

34. If a fruit is developed from (2G) ovary with parietal placentation, unilocular when young but becoming 2-locular with age and the appearance of the fruit so developed is pod like, the fruit would be grouped under:
(a) lomentum
(b) siliqua
(c) silicula
(d) capsule.

35. lf a fruit is developed from (2G) ovary with parietal placentation, unilocular when young becoming bilocular at maturity and the length of the fruit is less than ifs breadth, the fruit would be called as:
(a) cypsella
(b) silicula
(c) silique
(d) Sorosis

36.If a fruit is developed from (2 G), bilocular with one ovule in each locule and pendulously attached and the wall of the ovary possess vittae, the fruit is designated as:
(a) caryopsis
(b) cypsella
(c) cremocarp
(d) capsule.

37. If a dry fruit is developed from bicarpellary, syncarpous inferior ovary with a single basally placed ovule, the fruit would be called as :
(a) caryopsis
(b) cypsella
(c) capsule
(d) silique.

38. The prickly pear plant which is botanically named as Opuntia is an excellent example of:
(a) phyllode
(b) cladode
(c) cladophyll
(d) none of the above.

39. Goldfussia in which two different size of leaves are found is an excellent example of:
(a) heterophylly
(b) anisophylly
(c) distichous
(d) none of the above.

40.The characteristic cell wall material peptidogly can has another coverine of lipopolysaccharides. This specialized condition is found in :
(a) Gram + ve eubactena
(b) Gram- ve eubacteria
(c) all eucaryotes
(d) both (a) and (b).

41. Symbiotic association between tuft of fungal hyphae and the roots of Pinus is known as :
(a) mycoplasma
(b) mycophagy
(c) mycobiont
(d) mycorrhiza.

42. Mucilagiltous polysaccharide commonly called as CARAGHEEN and which is extensively used in various industries is obtained from:
(a) Gelidium
(b) Laminaria
(c) Chondrus
(d) Gracilaria.

43. The algal component of foliose lichen is termed as:
(a) phycosymbiont
(b) phycobiont
(c) mycobiont
(d) ascolichen.

44. Select the most successful group of organism on the surface of our globe:
(a) Gram + ve, heterotrophs
(b) Gram – ve photosynthetic cynobacteria
(c) chemoautotrophic bacteria
(d) photoautotrophic bacteria.

45. Which one of the following is not an essential fatty acid:
(a) stearic
(b) linoleic
(c) linolenic acid
(d) arachidonic acid.

46. The collection of various types of molecules in a cell is called :
(a) primordial soup
(b) cellular broth
(c) cellular pool
(d) molecular broth.

47. When the light intensity changes from I to 100 units, the response of the eye will increase by:
(a) 0.01
(b) 10
(c) 100
(d) 200.

48. Which is the wrong combination :
(a) Code- Gamow
(b) Chargaff-complementarity rule
(c) Wilkins – X-ray crystallography
(d) Watson- Reverse transcription.

49. In a DNA molecule :
(a) nitrogenous bases are bonded covalently to phosphate groups
(b) pentose sugars are bonded ionically to the nitrogenous bases
(c) pentose sugars are bonded by hydrogen bonds to the nitrogenous bases
(d) nitrogenous bases are bonded to each other by hydrogen bonds.

50. Body temperature of many animals correspond to the environmental temperature. They are known as :
(a) heterothennic
(b) homoeothermic
(c) endothermic
(d) poikilothermic.

51.Deficiency of vasopressin (ADH ) leads to :
(a) diabetes mellitus
(b) diabetes insipidus
(c) grave’s disease
(d) goitre.

52. The junction between two adjacent smooth muscle cells is a.
(a) occluding junction
(b) intermediate junction
(c) desmosorne
d) gap junction.

53. Oestrogen is secreted by :
(a) pituitary gland
(b) ovarian tissue
(c) Graffian follicle
(d) placenta.

54. The structure which is capable of stretching many times its size:
(a) lungs
(b) stomach
(c) uterus
(d) pupil of the eye.

55. Kupffer cells are found in
(a) spleen
(b) liver
(c) lung alveoli
(d) blood.

56. If a person wears a special kind of a spectacle that produced an upright image on the retina then he will:
(a) see everything upside down
(b) see everything upright
(c) initially see everything upside down but regain normal upright vision after a few days
(d) initially see everything upright but after a few days see everything upsided down.

57. Which is more efficient medium for oxygen uptake in respiration:
(a) aquatic
(b) aerial
(c) marine
(d) esturine.

58. The aquaduct of Sylvius connects :
(a) 1st and 2nd ventricles
(b) 2nd and 3rd ventricles
(c) 3rd and 4th ventricles (
d) 4th ventricle and central canal.

59. In man regulation of respiration and heart beat is maintained by:
(a) cerebrum
(b) medulla oblongata
(c) cerebellum
(d) spinal cord.

60. The change in the partial pressure of CO2 in blood is determined by :
(a) carotid sinus
(b) carotid bodies
(c) surface of lungs
(d) carotid sinus and carotid bodies.

61.lf two autosomal sets with single sex chromosome (AA +ZO ) are present in a moth, the moth is:
(a) sterile male
(b) intersex
(c) gynandromorph
(d) fertile female.

62. A child has the blood group ‘O’ The possible genotypes of his parents are:
(a) IA IB x IA IO
(b) lOlO x IAIA
(c) IAlB, 1O 1O
(d) IAIO X IAIO

63. Muscular dystrophy in human beings is a sex-linked lethal disease and males with Xdy dooms to die ( d= gene for dystrophy ). Frequent marriages between X+Xd females and X+Y males in the long run will result in female : male ratio
(a) 2:1
(b) 2:2
(c) 1:2
(d) 1:1

64. HIV codes for the gene (S) :
(a) gag
(b) pol
(c) env
(d) All the above.

65. A number of researches have studied the potential transmission of AIDS by biting insects like mosquitoes. Laboratory studies conclusively showed that HIV:
(a) cannot replicate or survive for long period
(b) can replicate
(c) can survive, but remains dormant
(d) can replicated after long time.

66. A person may die after getting a bee sting in his body due to :
(a) toxicity
(b) coagulation of blood
(c) anaphylactic shock
(d) toxicity and coagulation of blood

67. G6 PD dificiency ( glucose 6 phosphate dehydrogenase; required for minor glycolysis in human beings) is likewise a sex- linked disease. Like sickle cell anaemia it also afford some protection against malaria. This is an example when a gene can effect more than one trait. This phenomenon is referred as:
(a) pleiotropy
(b) pseudodominance
(c) epistatis
(d) phenocopy.

68. The enzyme used in the beverage industry to flavour soft drinks and in the baking industry to sweeten the biscuits and cakes :
(a) Glycoamylase
(b) Amylase
(c) Proteoses
(d) Glucoamylase.

69. Which of the vitamins can t be deposited inside the body:
(a) Ascorbic acid
(b) Cholecalciferol
(c) Vitamin K
(d) Retinol.

70. Excessive pulling of ligaments between two bones causes:
(a) fracture of the bones
(b) sprain
(c) breakage of the muscles
(d) all the above.

71. The selection coefficient is
(a) the chance of an organism’s reproductive success
(b) the chance of an organism’s reproductive failure
(c) the genotype which have greatest survival rate
(d) the selection against recessive homozygotes.

72. In evolution the studies can be made at molecular level. For example the protein present in the blood of man and ape are similar. The base sequence in nucleic acids and amino acids sequence in protein in related organism is alike. These are the examples which one specifically referred to in:
(a) convergent evolution
(b) molecular analogy
(c) molecular homology
(d) homoplastic appearance.

73. Which one of the following genotype has one Barr body:
(a) XY
(b) XX
(c) XXX
(d) XYY.

74. The fusion of paternal and maternal sets of chromosomes of haploid gametes is known as:
(a) amphimixis
(b) coition
(c) synkaryon
(d) insemination.

75. Protein C which inactivates factor VIII and there by partly inhibits the clotting mechanism is activated by:
(a) tissue factor pathway inhibitor
(b) thrombin
(c) antithrombin III
(d) heparin.

76. Which of the following vitamins is used in Electron Transport System:
(a) cobalamine
(b) thiamine
(c) riboflavin
(d) ascorbic Acid.

77. Vitamin ‘A’ can be syntheshed inside the body by:
(a) stomach
(b) pancreas
(c) liver
(d) spleen.

78. Which of these bile products not used in the solubilization of fats:
(a) bile salts
(b) cholesterol
(c) lecithin
(d) bile pigments.

79. Besides corticotropin releasing hormone (CRH) which other hormones also stimulate the retease of adenocorticotropic hormone (ACTH ) :
(a) epinephrine and insulin
(b) insulin and aldosterone
(c) aldosterone and vasopressin
(d) epinephrine and vasopressin.

80. In normal atmosphere the amount of oxygen in air and dissolved oxygen in water respectively are:
(a) 21% and 17%
(b) 95% and 15%
(c) 32% and 7%
(d) 67% and 13%.

81.In an experiment an Amoeba was transferred from a container ‘A’ to container ‘B’. Amoeba developed a contractile vacuole. However the vacuole disappeared again when the amoeba was transferred back to container ‘A’, The container A and B respectively contained :
(a) fresh and marine water
(b) marine and fresh water
(c) both contained fresh water
(d) both contained marine water.

82. The concept of “biological species ” was proposed by:
(a) Linnaeus
(b) Darwin
(c) E Mayer
(d) Von Baer.

83. The hormone secreted by corpus luteum is
(a) ACTH
(b) LH
(c) Progesterone
(d) FSH

84. Other than DNA polymerase, which are the enzymes involved in DNA synthesis :
(a) topoisomerase
(b) helicase
(c) RNA Primase
(d) all of the above.

85. Bulk of RNA is synthesized in a cell during:
(a) ‘S’ (synthetic) phase
(b) G1 phase
(c) G2 phase
(d) M- phase.

86.”One gene one polypeptide chain” theory was proposed by:
(a) Beadle and Tatum
(b) Khorana and Nirenberg
(c) Watson and Koremberg
(d) Vernon- M-ingram.

87. Both DNA and RNA are present in :
(a) bacteria
(b) higher organisms
(c) bacteria and higher organisms
(d) none of the above.

88. RNA differs from DNA in having :
(a) thymine
(b) deoxyribose sugar
(c) uracil
(d) thiamine.

89. Kleinefelter ‘s syndrome occurs because of:
(a) presence of extra X-chromosome in female
(b) presence of only one X-chromosome in female
(c) presence of extra X-chromosome in male
(d) presence of extra Y-chromosome in male.

90. The nucleolus is the site of formation of:
(a) spindle fibres
(b) chromosomes
(c) ribosomes
(d) peroxysomes.

91. The Recapitulation theory or Biogenetic law was proposed by:
(a) Ernst Haeckel
(b) Von- Baer
(c) Weismann
(d) Menoet.

92. Find out the odd one
(a) Rohu
(b) Catla
(c) Mrigala
(d) Meckeral

93. Which of the following is the connecting link between Apes and Man?
(a) Dryopithecus
(b) Homo erectus
(c) Australopithecus
(d) Homo neanderthelensis

94.Which of the following is a taxon category?
(a) Angiosperm
(b) Division
(c) Polypetalae
(d) Cycas

95. If the tall red heterozygous flower is crossed with the short white homologus flower then it is called
(a) Test Cross
(b) Back cross
(c) Reciprocal cross
(d) Dihybrid cross.

96. Radioactive wastes cause
(a) Respiratory diseases
(b) Fluorosis
(c) Gene mutation
(d) Liver cirrhosis

97. The exchange of genes from one population to other is called
(a) Gene pool
(b) Gene frequency
(c) Gene flow
(d) Gene mutation

98. Gregor Mendel the father of genetics was
(a) An Austrian monk
(b) Italian
(c) The Swedish chemist
(d) An American scientist

99. The genetic material of genes is
(a) Only DNA
(b) RNA only
(c) DNA or RNA
(d) DNA & RNA

100. The natural genetic engineer is
(a) E. coli
(b) Klebsiella
(a) Frankia
(a) Agrobacterium

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MAHE MANIPAL NATIONAL (PRIVATE)
MANIPAL ACADEMY OF HIGHER EDUCATION (DEEMED UNIVESITY)
Total Seats : 700
MBBS: 500
BDS: 200 ,
Min. Qualification : 12TH (50% IN PCBE)
Age: Min. 17 to none
Examination Type :OBJECTIVE P(120)+C(120)+BIO(80)+E(40)
Time given 3.00 hrs