Biology Model Paper 2022 Bseb |
1. Fusion of male gametes with secondary nuclei is called.
(a) Syngamy
(b) Triple fusion
(c) Geitenogamy
(d) Cleistogamy
Ans:-(b)
2. A large cluster of ribosome is called
(a) Megasome
(b) Microsome
(c) Polyribosome
(d) All of the above
Ans:-(c)
3. Which of the following is a biofertilizer?
(a) Cynobacteria
(b) Mycorhiza
(c) Symbiotic bacteria
(d) All of the above
Ans:-(d)
4. Middle piece of a mammalian sperm contains
(a) Nucleus
(b) Centriole
(c) Mitochondria
(d) None
Ans:-(c)
5. Acrosome is present in
(a) Sperm
(b) Ova
(c) Ovary
(d) All of the above
Ans:-(a)
6. Anemophily can be best seen in
(a) Sunflower
(b) Maize
(c) Pig
(d) Yucca
Ans:-(b)
7. Citric acid is produced by
(a) Acetobacter Aceti
(b) Yeast
(c) Aspergillus niger
(d) Streptococcus
Ans:-(c)
8. Which of the following cells present in mammalian testes help to nourish sperms?
(a) Leydig cell
(b) Male germ cells
(c) Autosomes
(d) Sertoli cells
Ans:-(d)
9. Which one of the following is false fruit?
(a) Mango
(b) Banana
(c) Apple
(d) All of the above
Ans:-(c)
10. Binary fission occurs in
(a) Lotus
(b) Amoeba
(c) Water hyacinth
(d) All of the above
Ans:-(b)
11. The concept of Lac operon was given by
(a) Beadle & Tatum
(b) Watson and Crick
(c) Jacobe and Monad
(d) None of the above
Ans:-(c)
12. The term ecosystem was coined by
(a) Lamarck
(b) Darwin
(c) A.G. Tansley
(d) All of the above
Ans:-(c)
13. Minamata disease is due to pollutant
(a) H₂
(b) SO₂
(c) Mercury
(d) All of the above
Ans:-(c)
14. Which one of the following is the high-milk yieldng variety of cow ?
(a) Holstein
(b) Pashmina
(c) Dorset
(d) All of the above
Ans:-(a)
15. In plant meiosis occurs in
(a) Pollen grain
(b) Anther
(c) Root tip
(d) None
Ans:-(b)
16. Example of corm is
(a) Onion
(b) Ginger
(c) Colocasia
(d) None of the above
Ans:-(c)
17. Which of the following is chain initiation of codon?
(a) AUG
(b) UAG
(c) UUA
(d) CCC
Ans:-(a)
18. Widal Test is done to confirm
(a) Typhoid
(b) Malaria
(c) Filaria
(d) All of the above
Ans:-(a)
19. Which microbe is used in manufacturing of bread?
(a) Anabena
(b) Algae
(c) Baker’s Yeast
(d) All of the above
Ans:-(c)
20. Human genome project was discovered by
(a) Watson and Crick
(b) Beadle and Tatum
(c) Francis Collins and Roderick
(d) None
Ans:-(c)
21. Embryo sac is created
(a) Megaspore
(b) Microspore
(c) Both
(d) None of the above
Ans:-(a)
22. Down’s Syndrome in child is due to
(a) Gene mutation
(b) Monosomy
(c) Trisomy
(d) All of the above
Ans:-(c)
23. On which insect group Bt-toxin is effective
(a) Dipteron
(b) Lepidopteron
(c) Choleopteron
(d) All of the above
Ans:-(d)
24. Miller prepared in laboratory
(a) Amino acid
(b) Ammonia
(c) Hydrogen
(d) All of the above
Ans:-(a)
25. Dinosaurs found in the era of
(a) Permian
(b) Modern
(c) Carboniferrous
(d) Jurassic
Ans:-(d)
26. PCR is used in Amplification of
(a) Protein
(b) Enzyme
(c) Segment of DNA
(d) All of the above
Ans:-(c)
27. Genetically engineered human insulin is made by
(a) Plant
(b) Yeast
(c) Bacterium
(d) All of the above
Ans:-(c)
28. What is Mala D?
(a) Contraceptive
(b) Vitamins
(c) Medicine for fever
(d) None of the above
Ans:-(a)
29. Which among is cancer?
(a) Leukemia
(b) Lymphoma
(c) Liposa
(d) All of the above
Ans:-(d)
30. Second trophic level in lake is
(a) Phytoplankton
(b) Zooplankton
(c) Both
(d) None of the above
Ans:-(b)
31. Which of the following is known as green house gas?
(a) Methane
(b) CFC
(c) CO₂
(d) All of the above
Ans:-(d)
32. The first human like being the homonid was called
(a) Homo sapiens
(b) Homo erectus.
(c) Homo habilis
(d) All of the above
Ans:-(c)
33. AIDS is STD which is transmitted through
(a) Sexual contact
(b) Blood transmission
(c) Contaminated syringe
(d) All of the above
Ans:-(d)
34. The virus which cause cancer is known as
(a) TMV
(b) Oncogenic virus
(c) Bacteriophage
(d) All of the above
Ans:-(b)
35. Ozone layer is found in
(a) Troposhpere.
(b) Mesosphere
(c) Stratosphere
(d) All of the above
Ans:-(c)
36. RNAi is used to control pests on which plant
(a) Tabacco
(b) Mango
(c) Potato
(d) Poppy
Ans:-(a)
37. Lac operon represents
(a) Inducible gene system
(b) Repressible gene system
(c) Housekeeping gene system
(d) All of these
Ans:-(a)
38. The anterior portion of sperm is converted by a cap like structure know as
(a) Acrosome
(b) Mesosome
(c) Episome
(d) Spherosome
Ans:-(a)
39. Sickle-cell anemia is related to which type of disease?
(a) Sex linked diseasse
(b) Autosomal linked disease
(c) Deficiency
(d) Metabolic disease
Ans:-(a)
40. Pisciculture is related culture of
(a) Aquatic plants
(b) Aquatic animals
(c) Silk worm
(d) Lack worm
Ans:-(b)
41. B-lymphocytes are produced in
(a) Bone marrow
(b) Thymus
(c) Blood
(d) Lymph
Ans:-(a)
42. Number of deaths during a limited time period and place for a particular population is known as
(a) Natality
(b) Mortality
(c) Migratory
(d) Integrity
Ans:-(b)
43. Bio reactors provide optimal conditions to produce desired
(a) Product
(b) Organism
(c) Medium
(d) All of these
Ans:-(s)
44. Amplification of gene for interest may be done by
(a) MMR
(c) MRI
(b) PCR
(d) All of these
Ans:-(b)
45. Gametes are usually
(a) Haploid
(b) Diploid
(c) Polyploid
(d) Nulliploid
Ans:-(a)
47. For induction of alien DNA in host cell we may use
(a) Gene gun
(b) Micro-pipette
(c) Both (a) & (b)
(d) None of these
Ans:-(c)
47. Organic evolution was preceded by chemical
evolution, the campions of this theory are
(a) A.1 Oparin and J.B.S. Haldane
(b) Charles Darwin
(c) Arrhenius
(d) Baptiste Lamarck
Ans:-(a)
48. In certain cases for early and accurate detection of disease we may use.
(a) ELISA
(b) Culture
(c) Chemical
(d) Analytical
Ans:-(a)
49. Tuberculosis is transmitted by
(a) Air
(b) Water
(c) Insect
(d) Contact
Ans:-(a)
50. Restriction enzymes are known as
(a) Biological guns
(b) Molecular scissors
(c) Plasmid
(d) Micro Pipette
Ans:-(c)
51. amp gene is responsible for developing resistance in
(a) Pest
(b) Insect
(c) Antibiotic
(d) Drought
Ans:-(c)
52. Taichung is a variety of
(a) Rice
(b) Wheat
(c) Maize
(d) Sugarcane
Ans:-(a)
53. For Nitrogen fixation in soil we may use
(a) Cyanobacteria
(b) Protozoans
(c) Nematodes
(d) Wheat plants
Ans:-(a)
54. Gynoecium is made up of
(a) Stigma
(b) Style
(c) Ovary
(d) All of these
Ans:-(d)
55. RNAi is used to control pests on which plant ?
(a) Tabacco
(b) Mango
(c) Potato
(d) Poppy
Ans:-(a)
56. Lac operon represents
(a) Inducible gene system
(b) Repressible gene system
(c) Housekeeping gene system
(d) All of these
Ans:-(a)
57. The anterior portion of sperm is converted by a cap like structure know as
(a) Acrosome
(b) Mesosome
(c) Episome
(d) Spherosome
Ans:-(a)
58. Sickle-cell anemia is related to which type of disease?
(a) Sex linked diseasse
(b) Autosomal linked disease
(c) Deficiency
(d) Metabolic disease
Ans:-(b)
59. Pisciculture is related culture of
(a) Aquatic plants
(b) Aquatic animals
(c) Silk worm
(d) Lack worm
Ans:-(b)
60. B-lymphocytes are produced in
(a) Bone marrow
(b) Thymus
(c) Blood
(d) Lymph
Ans:-(a)
61. Number of deaths during a limited time period and place for a particular population is known as
(a) Natality
(b) Mortality
(c) Migratory
(d) Integrity
Ans:-(b)
62. Which of the following is wrong pair?
(a) G =C
(b) T=A
(c) A = U
(d) T = U
Ans:-(c)
63. Cry IAb controls
(a) Corn Borer
(b) Wheat Rust
(c) Cotton insects
(d) Maize height insects
Ans:-(a)
64. Amphibians among plants belong to
(a) Algae
(b) Bryophytes
(c) fungi
(d) Pteridophytes
Ans:-(b)
65. Synthesis of RNA on DNA template is known as
(a) Translation
(b) Transcription
(c) Transduction
(d) Replication
Ans:-(b)
66. Transgenic mice may be used for testing of
(a) The safety of vaccines
(b) Efficiency of fertilizers
(c) Doses of antibiotics
(d) All of these
Ans:-(a)
67. Climax community is present in which area?
(a) In equilibrium
(b) In transition
(c) Bare land
(d) None of these.
Ans:-(a)
68. Flowers of Vallisneria spp are
(a) Anemophilous
(b) Entomophilous
(c) Hydrophilous
(d) Zoophilous
Ans:-(c)
69. The phenotypic ratio for F₂ generation in Incomplete dominance is
(a) 3: 1
(b) 2:2
(c) 1:2:1
(d) None of these
Ans:-(c)
70. Yeast reproduces by means of
(a) Budding
(b) Fragmentation
(c) Pollination
(d) All of these
Ans:-(a)