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Question paper · UP PGT

UP PGT 2021 — Biology (Series A)

17 or 18 August 2021125 questions+3.4 for a correct answer, −0 for a wrong one

Questions from the U.P. Secondary Education Services Selection Board’s paper of 17 or 18 August 2021. Each question’s answer is under it, hidden until you open it, and the full answer key is at the end. Take the paper as a timed practice test to be scored.

The official booklet is a scan with no text, so ExamBharo typed this paper from it by hand. A typing slip is possible; report one through the contact page.

The board deleted questions 42 and 57 in its final answer key: shown here, with no answer, and not counted in the score.

Biology

1. Match List – I with List – II and choose the correct answer using the codes given below : List – I (Animal association) — List – II (Definition) a. Cooperation — 1. Close association in which one species benefits b. Mutualism — 2. Loose association in which both species benefit c. Amensalism — 3. Close association in which both species benefit d. Commensalism — 4. One species inhibits the growth of another species but does not feed on it Codes : a b c d
- (a) 2 3 4 1
- (b) 4 2 3 1
- (c) 1 3 2 4
- (d) 3 2 4 1
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Answer: (a)
2. Which one of the following stem shows secondary growth and vascular bundles are leptocentric ?
- (a) Maize
- (b) Cynodon
- (c) Dracaena
- (d) Wheat
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Answer: (c)
3. Which stage of Puccinia is found on its alternative host ?
- (a) Uredospore
- (b) Teleutospore
- (c) Basidiospore
- (d) Pycnidiospore
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Answer: (d)
4. In which of the following viruses, DNA is the genetic material ?
- (a) TMV
- (b) MS2
- (c) T₂ phage
- (d) None of the above
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Answer: (c)
5. Line of growth found on the shell of Pila is called
- (a) Spere
- (b) Columella
- (c) Sutures
- (d) Varices
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Answer: (d)
6. Reindeer moss is
- (a) Cetraria islandica
- (b) Cladonia rangifera
- (c) Parmelia
- (d) Stone mushroom
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Answer: (b)
7. Which of the following statement is not true regarding the synthesis of proteins ?
- (a) It requires m-RNA, t-RNA, ribosomes, amino acids, energy and enzymes
- (b) Activated amino acids attach to t-RNA
- (c) m-RNA is read in 5′→3′ direction
- (d) Polypeptide synthesis proceeds from C-terminal to N-terminal end
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Answer: (d)
8. How is it that, Taenia escapes digestion by the enzymes of the host, it is due to the presence of
- (a) acid mucopolysaccharides
- (b) alkaline mucopolysaccharides
- (c) acid lipopolysaccharides
- (d) alkaline lipopolysaccharides
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Answer: (b)
9. Which one is not a fossil type ?
- (a) Coal ball
- (b) Amber
- (c) Compaction
- (d) Basalt
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Answer: (d)
10. The genetic code is called degenerate code because
- (a) One codon has many meanings
- (b) More than one codon has the same meaning
- (c) One codon has one meaning
- (d) There are 64 codons present
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Answer: (b)
11. Which of the following equations represents the central dogma of molecular biology ?
- (a) DNA → RNA → Protein
- (b) RNA → Protein → Enzyme
- (c) Protein → RNA → DNA
- (d) DNA → Protein → RNA
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Answer: (a)
12. Which one is correctly paired ?
- (a) Teak – Dipterocarpus
- (b) Sal – Tectona
- (c) Chir – Cedrus
- (d) Sheesham – Dalbergia
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Answer: (d)
13. The new varieties of a species are produced as a result of
- (a) Microevolution
- (b) Macroevolution
- (c) Megaevolution
- (d) Straight line evolution
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Answer: (a)
14. The binomial system of Carolus Linnaeus was devoid of which of the following categories ?
- (a) Genus and species
- (b) Class and order
- (c) Phylum and family
- (d) Kingdom and class
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Answer: (c)
15. CH₂=CH₂ is mainly responsible for
- (a) Formation of root hair
- (b) Formation of nodes
- (c) Ripening of fruits
- (d) Formation of internodes
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Answer: (c)
16. Lac insect feeds on which of the following host plant ?
- (a) Butea monosperma
- (b) Zizyphus jujuba
- (c) Cajanus cajan
- (d) All of the above
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Answer: (d)
17. Pinus protects itself from microbial and insect attack through
- (a) Thick bark
- (b) Dwarf shoots
- (c) Mycorrhiza
- (d) Resin
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Answer: (d)
18. Which of the following floral formula is of Family Rosaceae ?
- (a)
- (b)
- (c)
- (d)
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Answer: (a)
19. Which of the following animal is poisonous ?
- (a) Hemidactylus
- (b) Uromastix
- (c) Ornithorhynchus male
- (d) Chameleon
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Answer: (c)
20. Which of the following fungal groups has septate hyphae and reproduces asexually by budding, conidia and fragmentation ?
- (a) Basidiomycotina
- (b) Zygomycetes
- (c) Chytrids
- (d) Glomeromycota
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Answer: (a)
21. How many somites are present in Hirudinaria ?
- (a) 32
- (b) 33
- (c) 34
- (d) 35
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Answer: (b)
22. Cauliflower, Cabbage, Knol-khol and Turnip belong to how many genera ?
- (a) One
- (b) Two
- (c) Three
- (d) Four
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Answer: (a)
23. Which of the following is an anadromous fish ?
- (a) Eel
- (b) Carp
- (c) Hilsa
- (d) Goby
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Answer: (c)
24. Which one is not correctly matched ?
- (a) Cotton – Fruit fibre
- (b) Coir – Mesocarp
- (c) Jute – Stem fibre
- (d) Flax – Bast fibre
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Answer: (a)
25. In the Wild Life (Protection) Act, 1972, important wild animals have been placed in
- (a) Two Schedules
- (b) Three Schedules
- (c) Five Schedules
- (d) Six Schedules
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Answer: (c)
26. The teeth are replaced by a horny beak in which of the following ?
- (a) Rhynchocephalia
- (b) Squamata
- (c) Chelonia
- (d) Crocodilia
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Answer: (c)
27. Retort shaped cells are found in
- (a) Funaria
- (b) Anthoceros
- (c) Lycopodium
- (d) Sphagnum
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Answer: (d)
28. Chapparal occurs in one of the areas
- (a) Africa
- (b) Siberia
- (c) Canada
- (d) Mediterranean area
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Answer: (d)
29. Regular exercise can increase the size of muscles by 60%. This is mainly the result of an increase in the
- (a) Diameter of muscle cells only
- (b) Number of muscle cells only
- (c) Number of myofibrils within muscle cells only
- (d) All of the above
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Answer: (d)
30. Chloride secreting cells of fishes are found in their
- (a) Gills
- (b) Kidneys
- (c) Liver
- (d) Posterior pituitary
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Answer: (a)
31. In which of the following amphibians the fertilized eggs develop in the stomach of the female and little frogs come out of its mouth ?
- (a) Salamandra
- (b) Rheobatrachus
- (c) Ichthyophis ♀
- (d) Alytes
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Answer: (b)
32. In a dihybrid test cross if parental types exceed the recombination types among the resultant progeny, it is due to
- (a) Linkage
- (b) Complete linkage
- (c) Independent assortment
- (d) Crossing over
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Answer: (a)
33. Monogenean ectoparasites of fishes are particularly found on their
- (a) Caudal fin
- (b) Gills
- (c) Pectoral fins
- (d) Claspers
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Answer: (b)
34. In Palaemon the hastate plate is found on the ________ side of cardiac stomach.
- (a) dorsal
- (b) lateral
- (c) ventral
- (d) radial
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Answer: (c)
35. Which of the following is not correctly matched ?
- (a) Frog – Telolecithal eggs
- (b) Insect – Centrolecithal eggs
- (c) Mammal – Microlecithal eggs
- (d) Bird – Polylecithal eggs
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Answer: (c)
36. “Sinigrin” is present in the members of family
- (a) Malvaceae
- (b) Rutaceae
- (c) Brassicaceae
- (d) None of these
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Answer: (c)
37. Which of the following enhances the flavour of food ?
- (a) Magnesium carbonate
- (b) Tetrazines
- (c) Nitrous oxide
- (d) Monosodium glutamate
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Answer: (d)
38. The micronucleus of Paramecium is
- (a) diploid
- (b) polyploid
- (c) non-reproductive
- (d) the main source of RNA
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Answer: (a)
39. Copper deficiency leads to
- (a) Exanthema
- (b) Whiptail of cauliflower
- (c) Little leaf condition
- (d) Interveinal chlorosis
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Answer: (a)
40. The term ‘Single Cell Protein’ (SCP) refers to
- (a) Protein obtained from a single cell
- (b) Protein obtained from the progeny of a single cell
- (c) Protein obtained from the large scale growth of algae, fungi or bacteria
- (d) Viral coat proteins
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Answer: (c)
41. Nitrogenous and metabolic wastes are stored in the
- (a) Amniotic bag
- (b) Allantois
- (c) Yolk sac
- (d) Exocoel
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Answer: (b)
42. The larval life of Bombyx mori lasts for ________ days.
- (a) 32
- (b) 42
- (c) 52
- (d) 62
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Answer: —
43. Considering the amount of yolk and its distribution, the eggs of frog are
- (a) Microlecithal and centrolecithal
- (b) Mesolecithal and telolecithal
- (c) Polylecithal and isolecithal
- (d) Mesolecithal and isolecithal
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Answer: (b)
44. At regular intervals the heart beat is reversed in
- (a) Herdmania
- (b) Amphioxus
- (c) Scoliodon
- (d) Uromastix
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Answer: (a)
45. The sorus of Dryopteris is
- (a) Mixed type
- (b) Simple type
- (c) Gradate type
- (d) None of these
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Answer: (a)
46. Which one of the following gymnosperm phyla produces motile sperms, bears ovulate and microsporangiate cones on separate plants and has fleshy, coated seeds ?
- (a) Coniferophyta
- (b) Cycadophyta
- (c) Gnetophyta
- (d) None
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Answer: (b)
47. Phages which show lysogenic cycle are called
- (a) Temperate phage
- (b) Lytic phage
- (c) Virulent phage
- (d) None of the above
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Answer: (a)
48. The origin and diversification of Angiosperms was during which geological period ?
- (a) Permian
- (b) Triassic
- (c) Jurassic
- (d) Cretaceous
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Answer: (d)
49. Of the following which cestode is protandrously hermaphrodite
- (a) Diphylobothrium
- (b) Dipylidium
- (c) Taenia
- (d) Echinococcus
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Answer: (c)
50. The Valamen of orchid root is derived from the
- (a) Phellogen of root
- (b) Plerome of root
- (c) Dermatogen of root
- (d) Periblem of root
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Answer: (c)
51. Consider the following statements regarding AIDS 1. It is caused by retrovirus, HIV 2. It replicates within T₄ lymphocytes 3. ELISA test detects the presence of virus particles 4. It may remain dormant for six years Of these statements :
- (a) 1, 2 and 3 are correct
- (b) 2, 3 and 4 are correct
- (c) 1, 3 and 4 are correct
- (d) 1, 2 and 4 are correct
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Answer: (d)
52. Which of the following statement is true regarding the 3-pairs of appendages found in the nauplius larva ?
- (a) Antennules and antennae are biramus
- (b) Only antennules are biramus
- (c) Only mandibles are biramus
- (d) Both antennae and mandibles are biramus
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Answer: (d)
53. Which of the following proenzyme is first converted to active enzyme by enterokinase and then by autocatalysis ?
- (a) Pepsinogen
- (b) Chymotrypsinogen
- (c) Procarboxypeptidase
- (d) Trypsinogen
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Answer: (d)
54. The antitranspirant is/are
- (a) PMA (Phenyl Mercuric Acetate)
- (b) IAA (Indole Acetic Acid)
- (c) MH (Mallic Hydrazide)
- (d) All above
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Answer: (a)
55. Which of the following stimulates the exocrine pancreas ?
- (a) Secretin and pancreozymin
- (b) Enterocrinin
- (c) Insulin
- (d) Glucagon
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Answer: (a)
56. Diversity of the habitats over the total landscape or geographical area is called
- (a) Alpha diversity
- (b) Beta diversity
- (c) Gamma diversity
- (d) None of the above
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Answer: (c)
57. Which statement does not explain the features of cycas ?
- (a) Two kind of leaves
- (b) Monoecious
- (c) Wedge shaped microsporophyll
- (d) Mycorrhizal association in roots
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Answer: —
58. In incomplete dominance
- (a) The phenotypic and genotypic ratios are same in F₁ generation
- (b) The phenotypic and genotypic ratios are same in F₂ generation
- (c) The phenotypic ratio and genotypic ratio are different in the F₁ generation
- (d) The phenotypic and genotypic ratios are different in F₂ generation
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Answer: (b)
59. Which of the following pair is not correctly matched ?
- (a) Cnidaria – Radially symmetrical, tissue level organization
- (b) Platyhelminthes – Unsegmented, acoelomate
- (c) Nematoda – Unsegmented, pseudocoelomate
- (d) Arthropoda – Metameric, coelomate
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Answer: (d)
60. Epigynous flowers are found in
- (a) Cucurbita
- (b) Argemone
- (c) Malva
- (d) Solanum
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Answer: (a)
61. Filaria is diagnosed by the presence of microfilariae in the human blood. For this, the blood sample is taken
- (a) just after sunrise
- (b) any time of the day
- (c) between 4:30 and 6:30 in the evening
- (d) between 10:00 p.m. and 4:00 a.m in the night
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Answer: (d)
62. Match List – I with List – II and choose the correct answer using the codes given below : List – I — List – II a. Neutrophils — 1. Production of antibodies b. Eosinophils — 2. Kidney-shaped nucleus c. Monocytes — 3. Diapedesis d. Lymphocytes — 4. Number increases in allergy Codes : a b c d
- (a) 1 4 2 3
- (b) 4 2 3 1
- (c) 3 2 1 4
- (d) 3 4 2 1
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Answer: (d)
63. If an actin inhibiting drug is injected into an amoeba, its movement will
- (a) stop instantly
- (b) become faster
- (c) become slower
- (d) remain unaffected
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Answer: (a)
64. In certain plants, the mechanism where timing of anther dehiscence and stigma receptivity do not coincide to avoid self-pollination is called
- (a) Dichogamy
- (b) Herkogamy
- (c) Monoecy
- (d) Dioecy
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Answer: (a)
65. In Funaria, calyptra is derived from
- (a) Antheridium
- (b) Columella
- (c) Capsule
- (d) Archegonium
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Answer: (d)
66. The growth of Obelia colony is of ________ type.
- (a) bipodal
- (b) biramous
- (c) sympodial
- (d) racemose
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Answer: (c)
67. Chief function of Pedicellariae in star fish is
- (a) Respiration
- (b) Capturing
- (c) Cleansing
- (d) Feeding
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Answer: (c)
68. Birds are capable of removing during inspiration which of the following amount of oxygen from the air ?
- (a) 20%
- (b) 40%
- (c) 90%
- (d) 100%
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Answer: (c)
69. Alluvial soils are mostly found in which region ?
- (a) Northern India
- (b) Eastern India
- (c) Southern India
- (d) Gangetic Jamuna plains
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Answer: (d)
70. Which of the snakes found in India is non-poisonous ?
- (a) King Cobra
- (b) Banded Krait
- (c) Boa constrictor
- (d) Brown Himalayan viper
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Answer: (c)
71. Trypanosoma is polymorphic. Which of its following stages lacks a flagellum ?
- (a) Leptomonad
- (b) Crithidial
- (c) Trypanosome
- (d) Leishmanial
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Answer: (d)
72. Cleavage in Amphioxus is
- (a) Holoblastic and equal
- (b) Holoblastic and unequal
- (c) Meroblastic and superficial
- (d) Meroblastic and discoidal
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Answer: (a)
73. In prophase of meiosis chaismata are due to
- (a) Mutation
- (b) Crossing over
- (c) Translocation
- (d) Inversion
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Answer: (b)
74. Centripetal xylem is present in
- (a) Dicot root
- (b) Dicot stem
- (c) Monocot stem
- (d) Branches of stem
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Answer: (a)
75. Which of the following statement is not true regarding cytochrome oxidase ?
- (a) It is found in mitochondria
- (b) It transfers electrons to oxygen
- (c) It contains only copper
- (d) It contains both copper and iron
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Answer: (c)
76. PCO cycle is also known as
- (a) C₂ cycle
- (b) C₃ cycle
- (c) C₄ cycle
- (d) CAM cycle
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Answer: (a)
77. h′ = 0.61λ/(n′ sinθ) is the formula for
- (a) Resolving power
- (b) Kinetic energy
- (c) Light energy
- (d) Thermodynamics
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Answer: (a)
78. Protein Keratin is not found in the epidermis of
- (a) Fish
- (b) Reptile
- (c) Bird
- (d) Mammal
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Answer: (a)
79. Which of the following immunoglobulin molecules is largest ?
- (a) IgA
- (b) IgD
- (c) IgM
- (d) IgE
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Answer: (c)
80. Horse-shoe shaped ovule is
- (a) Campylotropous
- (b) Hemianatropous
- (c) Amphitropous
- (d) Circinotropous
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Answer: (c)
81. Which of the following is not correctly matched ?
- (a) Translocation – Interchromosomal rearrangement
- (b) Epistatic gene – Stimulating the action of another gene
- (c) Codominance – A character controlled by two genes
- (d) Neomorphs – Produce a phenotype different from that of wild gene
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Answer: (b)
82. Seeds having longest viability belong to
- (a) Chenopodium
- (b) Quercus
- (c) Lupinus
- (d) Eucalyptus
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Answer: (c)
83. Which of the following toxicant is found in the hydrosphere ?
- (a) Nitrous oxide
- (b) Detergents
- (c) Sulphur dioxide
- (d) Ozone
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Answer: (b)
84. A tumour like tissue of thin walled cells developing over the wounds is called
- (a) Tyloses
- (b) Gall
- (c) Callose
- (d) Callus
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Answer: (d)
85. Which one is an important constituent of renin-angiotensinogen-aldosterone system ?
- (a) JGA cells
- (b) Plasma cells
- (c) Macular cells
- (d) Erythropoietin
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Answer: (a)
86. A sample of ten people have the following body temperature in °C : 36, 34, 41, 39, 37, 43, 36, 37, 41 and 39. Which of the following represents the standard deviation ?
- (a) 2.65 °C
- (b) 2.90 °C
- (c) 3.10 °C
- (d) 3.50 °C
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Answer: (a)
87. The stain orcein is obtained from the thallus of
- (a) Roccella sp.
- (b) Cladonia sp.
- (c) Usnea sp.
- (d) Parmelia sp.
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Answer: (a)
88. Which one of the following is a food borne toxin ?
- (a) Tetanus toxin
- (b) Botulinum toxin
- (c) Cholera toxin
- (d) Diphtheria toxin
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Answer: (b)
89. Which of the following hormones is not correctly matched ?
- (a) Melatonin – Epiphysis
- (b) Melanotropin – Middle lobe of pituitary
- (c) Leptin – Adipocytes
- (d) Renin – Stomach of infants
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Answer: (d)
90. Development of Anther in angiosperms is
- (a) Leptosporangiate
- (b) Eusporangiate
- (c) Gradate
- (d) Simple
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Answer: (b)
91. The terms lotic and lentic refers to
- (a) Marine habitat
- (b) Terrestrial habitat
- (c) Fresh water habitat
- (d) Estuarine habitat
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Answer: (c)
92. Apocarpous condition occurs in
- (a) Liliaceae
- (b) Graminae
- (c) Ranunculaceae
- (d) Compositae
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Answer: (c)
93. Chylorhizy is found in
- (a) Opuntia
- (b) Euphorbia
- (c) Asparagus
- (d) Aloe
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Answer: (c)
94. The tendril shows
- (a) Haptotropism
- (b) Chemotropism
- (c) Phototropism
- (d) Hydrotropism
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Answer: (a)
95. Leafless stem of onion which produces flowers is called
- (a) Peduncle
- (b) Floral axis
- (c) Scape
- (d) Rachis
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Answer: (c)
96. Which of the following is permitted in a wild life sanctuary ?
- (a) Hunting of animals
- (b) Cutting of trees
- (c) Grazing of cattles
- (d) Collection of fruits, firewood and medicinal plants
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Answer: (d)
97. According to Geological Time Scale which one is the oldest period among the following ?
- (a) Cambrian
- (b) Carboniferous
- (c) Ordovician
- (d) Permian
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Answer: (a)
98. The phenomenon of Bradytely is exhibited by which of the following animal ?
- (a) Neoceratodus only
- (b) Latimaria only
- (c) Sphenodon only
- (d) All of the above
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Answer: (d)
99. Halophytic fern is
- (a) Adiantum emarginatum
- (b) Asplinium nidus
- (c) Acrostichum aureum
- (d) None
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Answer: (c)
100. Stratification of trees is seen in
- (a) Grasslands
- (b) Alpine regions
- (c) Temperate region
- (d) Tropical rain forests
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Answer: (d)
101. Krebs-Henseliet cycle is also called
- (a) Krebs cycle
- (b) Tricarboxylic acid cycle
- (c) Citric acid cycle
- (d) Urea cycle
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Answer: (d)
102. Interventricular septum is incomplete in
- (a) Rana
- (b) Uromastix
- (c) Columba
- (d) Oryctolagus
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Answer: (b)
103. Which of the following is the correct match of the algal group with its food reserve ? Algal Group — Food Reserve a. Bacillariophyceae — i. Oil b. Xanthophyceae — ii. Leucosin c. Phaeophyceae — iii. Manitol d. Chlorophyceae — iv. Volutin v. Starch Codes : a b c d
- (a) iv i iii v
- (b) ii i iii iv
- (c) iv i ii v
- (d) i v iii ii
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Answer: (a)
104. Which pair is correct ?
- (a) Cruciferae – Pentamerous
- (b) Ranunculaceae – Bicarpellary
- (c) Capparidaceae – Androphore
- (d) Cucurbitaceae – Axile Placentation
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Answer: (c)
105. During its entire life the queen bee copulates
- (a) Once only
- (b) Twice only
- (c) Thrice only
- (d) Continuously
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Answer: (a)
106. The process where Bacterial gene are transmitted from donar to recipient as part of the sex factor termed
- (a) Conjugation
- (b) Sexduction
- (c) Transformation
- (d) Transduction
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Answer: (b)
107. According to Bower and Goebel Rhizophore of selaginella is
- (a) A stem
- (b) A root
- (c) An organ sui-generis
- (d) None of the above
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Answer: (c)
108. Germination of pollen grain on the stigma is called
- (a) Autogamy
- (b) In situ germination
- (c) In vivo germination
- (d) In vitro germination
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Answer: (c)
109. The rate of oxygen consumption of an animal is equal to x at 0°C. If Q₁₀ is equal to 2, at which of the following temperatures the rate will be 8x ?
- (a) 5°C
- (b) 10°C
- (c) 30°C
- (d) 35°C
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Answer: (c)
110. Feeding in Sporozoa is
- (a) by cytostome
- (b) autotrophic
- (c) by micropores
- (d) ciliary
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Answer: (c)
111. In arithmetic average the meaning of Σ is
- (a) Sample mean
- (b) Number of individuals
- (c) Summation
- (d) Individual measures
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Answer: (c)
112. An algae having chlorophyll a, floridian starch as storage product and lacking flagellate cells belongs to the class
- (a) Phaeophyceae
- (b) Chlorophyceae
- (c) Rhodophyceae
- (d) Xanthophyceae
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Answer: (c)
113. Fibrous bands present in endothecium of anther wall is made up of
- (a) Sporopollenin
- (b) α-cellulose
- (c) Pectin
- (d) Lignin
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Answer: (b)
114. Which one is most primitive among the following in Geological Time Scale ?
- (a) Lycopodium
- (b) Selaginella
- (c) Equisetum
- (d) Psilotum
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Answer: (d)
115. Auxospores are found in
- (a) Cynophyceae
- (b) Chlorophyceae
- (c) Rhodophyceae
- (d) Bacillariophyceae
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Answer: (d)
116. Polysome consists
- (a) Ribosome and t RNA
- (b) Lysosome
- (c) Chromosome and centrosome
- (d) Ribosome and m RNA
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Answer: (d)
117. Placenta in humans is
- (a) chorionic, monodiscoidal, haemachorial
- (b) yolk-sac, diffuse, epitheliochorial
- (c) allantoic, cotledonary, haemoendothelial
- (d) allantoic, zonary, syndesmo-chorial
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Answer: (a)
118. In Griffith experiment of transformation virulent strain is called as
- (a) S-strain
- (b) R-strain
- (c) M-strain
- (d) K-strain
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Answer: (a)
119. Lomasome represents
- (a) Membrane structure
- (b) Mitochondrial equivalent
- (c) Plastid
- (d) Irregular structures
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Answer: (a)
120. Which one of the following is a fungal disease of plants ?
- (a) Cucumber mosaic
- (b) Fire blight of pear
- (c) Crown gall
- (d) Apple scab
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Answer: (d)
121. Only smooth walled rhizoids are found in
- (a) Riccia
- (b) Marchantia
- (c) Pellia
- (d) Funaria
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Answer: (c)
122. A prokaryotic cell lacks
- (a) only histones in its DNA
- (b) only cytoskeleton
- (c) only sub-cellular organelles
- (d) all of the above
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Answer: (d)
123. Which one is found in endospore of bacteria not in vegetative cell ?
- (a) Muramic acid
- (b) Dipicolinic acid
- (c) Glycolic acid
- (d) None of the above
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Answer: (b)
124. One species inhibits the growth of another species but does not feed on it. This is called
- (a) Commensalism
- (b) Mutualism
- (c) Cooperation
- (d) Amensalism
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Answer: (d)
125. Weeds of the fish pond having fry is removed by
- (a) Weedicides
- (b) Herbicides
- (c) Pesticides
- (d) Mechanical uprooting
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Answer: (d)

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Answer key

Answer key from the U.P. Secondary Education Services Selection Board’s official answer key for this sitting. “—” means the key gave none: the question was deleted.

Biology

Q 1: (a)
Q 2: (c)
Q 3: (d)
Q 4: (c)
Q 5: (d)
Q 6: (b)
Q 7: (d)
Q 8: (b)
Q 9: (d)
Q 10: (b)
Q 11: (a)
Q 12: (d)
Q 13: (a)
Q 14: (c)
Q 15: (c)
Q 16: (d)
Q 17: (d)
Q 18: (a)
Q 19: (c)
Q 20: (a)
Q 21: (b)
Q 22: (a)
Q 23: (c)
Q 24: (a)
Q 25: (c)
Q 26: (c)
Q 27: (d)
Q 28: (d)
Q 29: (d)
Q 30: (a)
Q 31: (b)
Q 32: (a)
Q 33: (b)
Q 34: (c)
Q 35: (c)
Q 36: (c)
Q 37: (d)
Q 38: (a)
Q 39: (a)
Q 40: (c)
Q 41: (b)
Q 42: —
Q 43: (b)
Q 44: (a)
Q 45: (a)
Q 46: (b)
Q 47: (a)
Q 48: (d)
Q 49: (c)
Q 50: (c)
Q 51: (d)
Q 52: (d)
Q 53: (d)
Q 54: (a)
Q 55: (a)
Q 56: (c)
Q 57: —
Q 58: (b)
Q 59: (d)
Q 60: (a)
Q 61: (d)
Q 62: (d)
Q 63: (a)
Q 64: (a)
Q 65: (d)
Q 66: (c)
Q 67: (c)
Q 68: (c)
Q 69: (d)
Q 70: (c)
Q 71: (d)
Q 72: (a)
Q 73: (b)
Q 74: (a)
Q 75: (c)
Q 76: (a)
Q 77: (a)
Q 78: (a)
Q 79: (c)
Q 80: (c)
Q 81: (b)
Q 82: (c)
Q 83: (b)
Q 84: (d)
Q 85: (a)
Q 86: (a)
Q 87: (a)
Q 88: (b)
Q 89: (d)
Q 90: (b)
Q 91: (c)
Q 92: (c)
Q 93: (c)
Q 94: (a)
Q 95: (c)
Q 96: (d)
Q 97: (a)
Q 98: (d)
Q 99: (c)
Q 100: (d)
Q 101: (d)
Q 102: (b)
Q 103: (a)
Q 104: (c)
Q 105: (a)
Q 106: (b)
Q 107: (c)
Q 108: (c)
Q 109: (c)
Q 110: (c)
Q 111: (c)
Q 112: (c)
Q 113: (b)
Q 114: (d)
Q 115: (d)
Q 116: (d)
Q 117: (a)
Q 118: (a)
Q 119: (a)
Q 120: (d)
Q 121: (c)
Q 122: (d)
Q 123: (b)
Q 124: (d)
Q 125: (d)