 |
| IMPORTANT BIOLOGY MCQ FOR NEET, JIPMET & AIIMS |
1. Puccinia forms uredia and :
a) pycnia on barberry leaves b) aecia on wheat leaves c) telia on wheat leaves d) aecia on barberry
leaves
2. The term meiosis was given by --
a) Johanson b) Knoll and Ruska c) Flemming d) Farmer and Moore
3. 2 , 4 - D is an effective --
a) fungicide b) weedicide c) rodenticide d) wormicide
4. Two bacteria found to be very useful in genetic engineering experiments are :
a) Nitrosomonas & Kliebsiella b) Escherichia & Agrobacterium c) Nitrobactor & Azobacter
d) Rhizobium & Diplococcus
5. Parents of blood group ' O' will have offsprimgs of
a) O only b) A and O c) O and B d) O and AB
6. The periderm includes --
a) Cork b) Cambium c) Secondary cortex d) all of these
7. Genetic Drift operates only in :
a) island population b) smaller populations c) larger populations d) Mendelian populations
8. which one of the following statements are correct ?
a) Homo erectus is the ancestor of man
b) Cro -magnon man's fossil has been found in Ethiopia
c) Australopithecus is the real ancestor of modern Man
d) Neanderthal man is the direct ancestor of Homo sapiens
9. When a single gene influences more than one trait it is called :
a) pleiotropy b) epistasis c) pseudo- dominance d) none of these
10. The exchanges of gases in the alveoli of the lungs takes place by :
a) Osmosis b) Simple diffusion c) passive transport d) active transport
11. Phytochrome becomes active in :
a) green light b) blue light c) red light d) none of these
12. Which of the following is not a viral disease?
a) Rabies b) chicken -pox c) leprosy d) polio
13. Heterocyst occurs in :
a) Ulothrix b) Spirogyra c) Nostoc d) Chlamydomonas
14. Colchicine is an inhibitory chemical which :
a) prevents the spindle formation in mitosis b) prevents the formation of equatorial plane
c) stops functioning of centriole d) prevents attaching of centromeres with ray
15. The polygenic genes show :
a) different genotypes b) different phenotypes c) different Karyotypes d) none of these
16. Maximum absorption of light occurs in the region of :
a) 400 - 700nm b) 700 - 900nm c) 1000 - 1200nm d) 1500 - 2000nm
17. Non - Symbiotic nitrogen fixation is done by :
a) Frankia b) Anabaena c) Azotobactor d) Rhizobium
18. Digestion of fat is mainly facilitated by :
a) bile juice b) pancreatic juice c) amylase d) gastric juice
19. lactose is composed of :
a) glucose + fructose b) glucose + glucose c) glucose + galactose d) fructose + galactose
20. H.J Muller had received Nobel prize for :
a) discovering the linkage of genes b) discovering the induced mutations by X - rays
c) his studies on Drosophila for genetic study d) proving that the DNA is a genetic material
21. Acrosome of sperm head is formed by :
a) golgi body b) nucleus c) endoplasmic reticulum d) mitochondria
22. Which hormones stimulates the secretion of milk from female?
a) LH b) Prolactin c) Oxytocin d) Progesterone
23. Coelom is found between the cavity of :
a) ectoderm& endoderm b) mesoderm & ectoderm c) endoderm & ectoderm d) mesoderm &
endoderm
24. Same species found in different gepgraphical areas are :
a) Sympatric b) allopatric c) Siblings d) None of these
25.AIDS disease was first reported in :
a) Russia b) Germany c) USA d) France
26. In C4 plants , CO2 fixation is done by :
a) mesophyll cells b) guard cells c) sclerenchyma d) Chlorenchyma and hypodermis
27. Electron microscope was invented by :
a) Watson & Crick b) Knoll & Ruska c) H.J.Muller d) Aristotle
28. The black rust of wheat is a fungal disease caused by :
a) Melampsora lini b) Claviceps purpurea c) Albugo candida d) puccinia graminis tritici
29. Curvature of coleoptile tip in an experimen was due to :
a) IAA b) cytokinin c) ethylene d) ABA
30. The twinning of tendrils around a support is a ggod example of :
a) nastic movement b) thigmotropism c0 phototropism d) chemotropism
31. When a cell is fully turgid which of the following will be zero ?
a) wall pressure b) Osmotic pressure c) Turgor pressure d) Water potential
32. DNA synthesis can be specifically measured by estimating the incorporation of radio labelled :
a) uracil b) adenine c) thymine d) deoxyribose sugar
33. How many mitotic divisions are needed for a single cell to make 128 cells ?
a) 7 b) 14 c) 28 d) 32
34. The cofactor (Prosthetic group ) is a part of holoenzyme . It is :
a) loosely attached inorganic part b)accessory non protein substance attached firmly
c) loosely attched organic part d) none of these
35. Bryophytes can be separated from algae, because they :
a) are thalloid forms b) have no conducting tissue c) possess archegonia d) contain chloroplast
36. The core metal of chlorophyll is :
a) Fe b) Mg c) Ni d) Cu
37. Infrior ovary is found in :
a0 Labiatae b) Liliaceae c) Solanaceae d) compositae
38. The end product of fermentation are :
a) CO2 & O2 b) CO2 & C2H5OH c) O2 & C2H5OH d) CO2 & CH3CHO
39. The desmosomes are connected with :
a) cytolysis b) Cellular excretion c) Cell division d) cell adherence
40. The lymph serves to :
a) transport CO2 to the lungs b) transport O2 to the brain c) return the interstitial fluid to the blood
d) return the WBCs and RBCs to the lymph nodes
41. Which of the following cycle found in sugarcane ?
a) Calvin cycle b) Hatch and Slack cycle c) CAM cycle d) EMP - pathway
42. Fallopian tube is lined by :
a) pseudostratified epithelium b) ciliated epithelium c) cuboidal epithelium d) squamous epithelium
43. Tallest tree belongs to :
a) gymnosperms b) monocots c) dicots d) pteridophytes
44. Identify the correct match between tiger reserve and its state :
a) Bandipur -- Tamilnadu b) Palau -- Orissa c) Manas --- Assam d) Corbett - Madhya Pradesh
45. In abiotic community the primary consumers are :
a) carnivores b) omnivores c) detrivores d) herbivores
46. Barr body in mammals represents :
a) all the heterochromatin in female cells b) one of the two X-chromosomes in somatic cells of female
c) all the heterochromatin in male & female cells d) the Y-chromosome in somatic cells of the male.
47. Pinus differ from Mango in :
a) covered ovules b) uncovered ovules c)diploid endosperm d) colour of leaves
48. When a viral DNA integrates with a host DNA then the process is referred as :
a) lysis b) prophage c) lysogeny d) none of these
49. The blood cancer is known as :
a) leukaemia b) thrombosis c) haemolysis d) haemophilia
50. How many chromosomes are present in ovum of man ?
a) 22 + X b) 22 + Y c) 44 + X d) 44 + Y
51. Life was originated in :
a) water b) air c) fire d) soil
52. Convergent evolution is shown by :
a0 rabbit & dog b)fish & whale c) bacteria & amoeba d) starfish & jelly fish
53. The life span of human WBC is approximately :
a) less than 10days b) between 20 to 30 days c) between 2 to 3 months d) more than 4 months
54. T. Schwnn and M. Schleiden were :
a) Dutch biologist b) Austrian biologists c) German biologists d) English biologists
55. Lysosomes are the store house of :
a) hydrolytic enzymes b) proteins c) sugar d) ATP
56. Which of the following is responsible for the mechanical support , protein synthesis and enzyme
transport ?
a) Endoplasmic reticulum b) Mitochondria c) Cell Membrane d) Dictyosome
57. The kingdoms - Monera , Protista , Fungi , Plantae and Animalia are distinguished on the basis of :
a) type of nutrition b) type of cell c) type of reproduction d) all of these
58. The protists have :
a) membrane bound nucleoproteins lying embedded is the cytoplasm
b) gene containing nucleoproteins condensed together in loss mass
c) nucleoproteins is direct contact with the rest of the cell substance
d) only free nucleic acid aggregates
59. Which of the following is obtained from algae ?
a) Carragenin b)Chocolate c) Butter d) Wax
60. Which of the following plant kingdom is called ' amphibians ' ?
a) Thallophyta b) Pteridophyta c) Tracheophyta d) Bryophyta
61. Enzymes are made up of :
a) proteins b) fats c) carbohydrates d) lipids
62. Coconut milk represents :
a) mesocarp b) endocarp c) epicarp d) endosperm
63. Which of the following is grouped under phanerogams ?
a) pteridophyta b) Angiosperms c) Gymnosperms d) Both b and c .
64. Ipomoea batata belongs to :
a)Ranunculaceae b) Rutaceae c)Gramineae d) None of these
65. Anticodon of t- RNA binds with :
a) nucleic bases of m -RNA b) nucleic base of r - RNA c) codons of t - RNA d) amino acids
66.Which of the following causes white rust of crucifers ?
a) Aspergillus b) Puccinia c) Mucor d) Albugo candida
67. Treeless terrestrial biome of cold climates is :
a) plankton b) tundra c) Savanna d) taiga
68. Which of the following cell organelle is associated eith protein synthesis?
a) ribosomes b) Microsome c) Lysosome d) Glyoxysome
69. The pyramid of energy is always :
a) inverted b) horizontal c) both a and b d) upright
70. Loss of relative biological equilibrium is due to :
a) low temperature b) high temperature c) radiation d) pollution
71. Apical dominance is due to :
a) methylene b) auxin c) abscissic acid d) ethylene
72. In which of the following form sugar is transported within the body of plant ?
a) maltose b) glucose c) lactose d) sucrose
73. The process of transfer of DNA from one bacterium to another through virus is called :
a) transformation b)transduction c) conjugation d) termination
74. Oxygen is released from :
a) cytoplasm b) golgi body c) chloroplast d) mitochondria
75. The first reaction in photorespiration is :
a) phosphorylation b) decarboxylation c) oxygenetion d) carboxylation
76. Shell of mollusc is produced by its :
a) radula b) thorax c) mantle d) abdomen
77. Asymmetry in gastropoda is due to :
a) torsion b) coiling c) twisting d) none of these
78. The joint of femur with pelvic girdle is :
a) hinge joint b) pivot joint c) non movable joint b) ball and socket joint
79. Which of the following is the part of mid brain of rabbit ?
a) Diencephalon b) Cerebrum c) Corpora quadrigemina d) none of these
80. Which of the following is a motor nerve ?
a) auditory b) Abducens c) Optic nerve d) Trigeminal nerve
81. Which of the following is called emergency gland of the body ?
a)Testis b) Thymus c) Adrenal d) Pituitary
82. Which of the following is both exocrine and endocrine gland:
a) liver b) pancreas c) thyroid d) adrenal
83. Corpus luteum is developed from :
a) oocyte b) nephrostome c) graffian follicle d) none of these
84. In most mammals , the testes are located in socral sac for :
a) spermatogenesis b) sex differentiation c) more space to visceral organ
d) Independent functioning of kidney
85. Third cleavage of Frog's development is :
a)equatorial b) vertical c) latitudinal d) none of these
86. Which of the following is a transparent tissue ?
a) Tendon b) Hyaline cartilage c) Fibrous cartilage d) all of these
87. Which of the following are not true cells in the blood :
a) platelets b) monocytes c) neutrophils d) basophils
88. Vitamin D symthesised in skin by the action of sunlight on
a) cholesterol b) seven- hydroxy - cholesterol c) cephanocholesterol d) all of these
89.In which animal diaphragm has no role on respiration ?
a) frog b) rat c) camel d) rabbit
90.The are of inner surface of bronchiole is
a) 1 metre square b)10 metre square c)100 metre square d) 1000 metre square
BEST OF LUCK
SOLUTION WILL BE PUBLISH ON 5TH FEBRUARY 2017
No comments:
Post a Comment