MCQ on Biology- 2
1. Kupffer cells are found in humans in
(A) Liver
(B) Testis
(C) Muscles
(D) Nerves
2. Which of the following reptiles is a living fossil?
(A) Sphenodon
(B) Crocodylus
(C) Varanus
(D) Tortoise
3. Which of the following is not true about chick embryology?
(A) The Eggshell is formed of Silica.
(B) Cleavage in chick embryo is meroblastic.
(C) Chick embryo receives its nutrition from yolk sac.
(D) Eggshell membranes are two in number.
4. A man is affected by brachydactyly, an autosomal dominant trait that causes shortening of several fingers. What is the risk that the man’s first child will have brachydactyly?
(A) 100%
(B) 75%
(C) 50%
(D) 25%
5. Which one of the following is used for bread preparation?
(A) Saccharomyces ludwigii
(B) Saccharomyces cerevisiae
(C) Rhizopus stolonifer
(D) Rhizopus fermentis
6. The genes controlling the seven pea characters studied by Mendel are now known to be located on how many different chromosomes?
(A) Four
(B) Seven
(C) Two
(D) Five
7. Cells obtained from an organism were homogenized and centrifuged. A test indicated that the cells contained glycogen. If you were asked to find out as quickly as possible whether the cells were from a plant or an animal, you would
(A) examine the centrifuged sample for the presence of extracts of chloroplasts.
(B) examine the centrifuged sample for the presence of centriole.
(C) answer immediately that the cell were from animal source.
(D) It is very difficult to answer whether it is from animal or plant
8. Which one of the following gives its correct total number?
(A) Floating ribs in humans – 4
(B) Amino acids found in proteins – 16
(C) Types of diabetes – 6
(D) Cervical vertebrae in human – 8
9. Number of chromatids in one chromosome at metaphase is
(A) One in mitosis and two in meiosis
(B) Two in mitosis and four in meiosis
(C) Four in both mitosis and meiosis
(D) Two in both mitosis and meiosis
10. Eggs of insects are
(A) Telolecithal
(B) Oligolecithal
(C) Centrolecithal
(D) Mesolecithal
11. Angiotensinogen is produced and secreted by
(A) Cells lining of the blood vessels
(B) Juxtaglomerular cells
(C) Macula dens cells
(D) Liver cells
12. Which of the following is responsible for failure of vaccine in infants?
(A) Serum protease
(B) Maternal antibodies
(C) Both (A) and (B)
(D) Glucose molecule of blood
13. Select the true statement, with reference to the Laminar Air flow.
(A) Air is sterilized using HEPA filters.
(B) The UV radiations are used to sterilize while working on the bench.
(C) It is primarily used to sterilize the culture media and glassware.
(D) None of the above is true
14. Red rot of sugarcane is caused by ……
(A) Cercospora
(B) Phytophthora
(C) Alternaria
(D) Colletotrichum
15. Testosterone is produced by :
(A) Aciner cells
(B) Graffian follicles
(C) Leydig cells
(D) Hepatic cells
16. Which of the following is an example of a monocot plant having secondary growth is
(A) Bignonia
(B) Nyctanthes
(C) Dracaena
(D) None of the following
17. ……. is a sex-linked recessive disease.
(A) Hemophilia
(B) Heterozygous
(C) XO-Chromosomal
(D) Down’s Syndrome
18. An example of homosporous pteridophyte is
(A) Lycopodium
(B) Selaginella
(C) Marsilea
(D) None of the above
19. Single pair excretory organ brown funnels are associated with the group …………
(A) Urochordata
(B) Cephalochordate
(C) Mamalia
(D) None of the above
20. ……..represents a pair of contrasting traits of a character.
(A) Heterozygous
(B) Chromosomes
(C) Hemichordate
(D) None of the above
21. The innermost wall layer of the anther which completely surrounds the sporogenous tissue is ….
(A) Endothecium
(B) Tapetum
(C) Nurse cells
(D) Intine
22. Which of the following is a photoreceptor in vertebrate except?
(A) Cyanopsin
(B) Idopsin
(C) Chlorocruorin
(D) Porphyropsin
23. Match Column I with Column II and select the correct answer using the codes given below
Column I Column II
(1) Monosomic (i) 2n – 1
(2) Nullisomic (ii) 2n – 2
(3) Trisomic (iii) 2n + 1
(4) Tetrasomic (iv) 2n + 2
(A) 1-(i) 2-(ii) 3-(iii) 4-(iv)
(B) 1-(i) 2-(iii) 3-(iv) 4-(ii)
(C) 1-(iv) 2-(ii) 3-(i) 4-(iii)
(D) 1-(ii) 2-(i) 3-(iii) 4-(iv)
24. The avian relatives of Dinosaurs are …….
(A) Crocodiles
(B) Turtles
(C) Archaeopteryx
(D) All of the above
25. Aflatoxin is produced by ………….
(A) Saccharomyces
(B) Nostoc
(C) Aspergillus
(D) None of the above
26. Which of the following is a correct sequence in reference to Geological Period?
(A) Triassic → Jurassic → Cretaceus
(B) Paleozoic → Mesozoic → Cenozoic
(C) Devonian → Silurian → Carboniferous
(D) Both (A) and (B)
27. Which of the following given statement/s is/are incorrect?
(A) Insulin and Trypsin both are proteins.
(B) Abrin and Ricin are toxins.
(C) Morphine and Cellulose are alkaloids
(D) Vincristine and Vinblastine are drugs.
28. Bouquet stage is character of
(A) Zygotene
(B) Leptotene
(C) Diplotene
(D) Both (A) and (B)
29. In honey bees a pheromone I-Keto decanoic acid secreted by
(A) Mandibular glands of queen bee
(B) Maxillary glands of worker bee
(C) Intestinal gland of queen bee
(D) Mandibular gland of male bee
30. Which of the following is/are macro elements in plants?
(1) Potassium (2) Calcium (3) Magnesium (4) Sulphur
Choose the correct option
(A) Option 1, 2 and 4
(B) Option 2 and 4
(C) Option 4, 3 and 1
(D) All are macro elements in plants
31. Which of the following is a hydrozoan coral?
(A) Alcyonium
(B) Anthipathes
(C) Stylaster
(D) Madrepora
32. The recipient of first Amrita Devi Bishnoi National Award for Wildlife Conservation was ……….
(A) Dr. Ragini Shah
(B) Ganga Ram Bishnoi
(C) Rajendra Singh
(D) Gauri Maulekhi
33. Which of the following is obtained from rhizomes?
(A) Clove and Saffron
(B) Turmeric and Ginger
(C) Turmeric and Saffron
(D) Clove and Ginger
34. What was present in the milk of first transgenic cow ‘Rosie’?
(A) Alpha-1-Antitrypsin
(B) Human alpha lactalbumin
(C) Bt protein
(D) Insulin
35. Casparian strips are present in…….
(A) Pericycle
(B) Xylem
(C) Endodermis
(D) Cortex
36. PAR range is ………..
(A) 300 nm – 800 nm
(B) 400 nm – 700 nm
(C) 500 µm – 700 µm
(D) 200 µm – 800 µm
37. Which of the following is a fossil plant?
(A) Rhynia
(B) Ginkgo
(C) Psilotum
(D) Equisetum
38.…………… flowers exhibit both radial and bilateral symmetry?
(A) Hollyhock
(B) Sunflower
(C) Garden Pea
(D) Marigold
39. Dolipore septa are found in the species of
(A) Ascomycetes
(B) Oomycetes
(C) Basidiomycetes
(D) Deuteromycetes
40. In Petromyzon
(A) Liver is tetralobed
(B) Renal portal system is present
(C) Hepatic portal vein is absent
(D) A Lymphatic system is present
41. Which of the following is a non-allelic gene interaction?
(A) Incomplete dominance
(B) Epistasis
(C) Codominance
(D) Multiple allelism
42. Orientation based on memory called …………
(A) Mnemotaxis
(B) Menotaxis
(C) Kinesis
(D) Telotaxis
43. Which of the following has the minimum number of chromosomes in Angiosperms?
(A) Haplopappus gracilis
(B) Arabidopsis thaliana
(C) Ganoderma lucidum
(D) Coptis teeta
44. Infective stage of Hook worm is
(A) Rhabditiform larva
(B) Metacercaria larva
(C) Filariform larva
(D) Cercaria larva
45. Which of the following is not a genetically modified organism?
(A) Glofish
(B) Golden Rice
(C) Flavr Savr
(D) Dolly Sheep
46. In ………. mosquito’s hypopharynx is less developed and fused with labium.
(A) male
(B) female
(C) Both (A) and (B)
(D) None of the above
47. Which of the following is toxic to mitotic spindle?
(A) Colchicine
(B) Giemsa
(C) Acetocarmine
(D) Fuchsin
48. …………..of male are pilose (with few short hair).
(A) Antennae
(B) Mandibles
(C) Rhesus
(D) All of the above
49. Which of the following is not a component of chlorophyll molecule?
(A) Nitrogen
(B) Manganese
(C) Magnesium
(D) Oxygen
50. Four statements are given below.
(i) PC is a copper containing mobile e– carrier.
(ii) Chemiosmotic theory was given by Mitchell.
(iii) Photorespiration is feature of C4 plants.
(iv) PEPCO is the main photosynthetic enzyme of C3 plants.
(A) i and ii
(B) ii and iii
(C) iii and iv
(D) iv and i
51. ………….are needle like and are serrated broad saw shaped.
(A) Mandibles
(B) Antennae
(C) Male mosquitos
(D) None of the above
52. The interchange of segments between non-homologous chromosomes is known as
(A) Crossing over
(B) Translocation
(C) Inversion
(D) Duplication
53. Which of the following is not a/an multimale bisexual group?
(A) Patas monkey
(B) Gorilla
(C) Rhesus
(D Squirrel monkey
54. Which of the following is the ‘Joker of plant kingdom’?
(A) Desmids
(B) Mycoplasma
(C) Diatoms
(D) Pogonatum
55. Fertilizin is
(A) Consumption of blood
(B) Consumption of faeces
(C) Consumption of sugar
(D) Consumption of grass
56. The cell wall of true fungi is made up of …………
(A) Chitosan
(B) Xylan
(C) Chitin and Cellulose
(D) Chitin
57. Which of the following RNA is commonly used for phylogenetic analysis?
(A) 16 S rRNA
(B) 5 S rRNA
(C) 28 S rRNA
(D) hn RNA
58.Leishmania donovani is a parasite of ………
(A) Muscles
(B) Nerves
(C) Epithelial tissues
(D) Reticuloendothelial system
59. Montreal Protocol is concerned with ……..
(A) Mitigation of climate change
(B) Biodiversity conservation
(C) Substances that deplete ozone layer
(D) None of the above
60. In which of the following organ is the Glisson’s capsule is present?
(A) Liver
(B) Lungs
(C) Pancreas
(D) Kidney
61. Shine-Dalgarno sequence is present on
(A) rRNA
(B) tRNA
(C) mRNA
(D) Initiation factor
62. Select false statement
(A) Operon model was first suggested by Jacob and Monod.
(B) The genes are protein.
(C) The functional unit of DNA can be regarded as cistron
(D) Recon is the smallest unit of DNA capable of recombination.
63. Select the incorrect statement in reference to the Binomial nomenclature.
(A) Each organism belonging to a genus has a specific name.
(B) Same specific name can be given to organisms belonging to different genera.
(C) Linnaeus used Latin for Binomial nomenclature as it was a dead language.
(D) Tautonyms are allowed in plants and animals.
64. Which one is not present in Blastula?
(A) Blastomere
(B) Blastopore
(C) Blastoderm
(D) Blastocoel
65. Which of the following is a correct sequence of the three major stages of Calvin cycle from beginning?
(A) Regeneration, Reduction, Carboxylation
(B) Reduction, Carboxylation, Regeneration
(C) Carboxylation, Reduction, Regeneration
(D) Carboxylation, Regeneration, Reduction
66. In which of the following type of scale, the basic structure resembles a tooth of mammals?
(A) Placoid
(B) Cycloid
(C) Ctenoid
(D) Ganoid
67. Which of the following plant group is known as the ‘vascular cryptogams’?
(A) Algae
(B) Fungi
(C) Pteridophytes
(D) Gymnosperms
- At which position does nitrogen occur in pyrimidine ring?
(A) At 1′ and 7′ position
(B) At 1′ and 3′ position
(C) At 1′, 3′, 7′ and 9′ position
(D) At 1′, 3′ and 9′ position
69. Which of the following is an example of a living plant cell, devoid of nucleus?
(A) Companion cell
(B) Endosperm cell
(C) Sieve cell
(D) Sclereids
70. Consider the following characteristic of an amphibian.
(1) Reduced lungs
(2) Copulatory organ present and fertilization is internal
(3) Tail muscles are absent
(4) Vertebrae are amphicoelous and ribs are free.
What is the name of this amphibian?
(A) Xenopus
(B) Ascaphus
(C) Alytes
(D) Rhacophorus
71. The cells of which of the following layers of the anther wall are multinucleated due to endomitosis?
(A) Nucleus
(B) Endothecium
(C) Top layer
(D) Tapetum
72. Function of Copper-T is to inhibit
(A) Fertilization
(B) Ovulation
(C) Implantation of blastocyst
(D) Gametogenesis
73. ………. inborn error of nucleic acid metabolism?
(A) Hartnup disease
(B) Fabry’s disease
(C) Lesch-Nyhan syndrome
(D) None of the above
74. The term ‘teminism’ is used for
(A) Semi-conservative DNA Replication
(B) Central Dogma
(C) Reverse Transcription
(D) RNA Splicing
75. Which of the following enzyme declines in specific activity during tail regression of frog metamorphosis?
(A) Cathepsins
(B) Acid phosphatase
(C) Mg++ activated ATPase
(D) Ribonucleases
76. Which of following belongs to non-extinct infraclass of Mammalia?
(A) Eotheria
(B) Allotheria
(C) Ornithodelphia
(D) Pantotheria
77. An example of a plant having pseudostem is ….
(A) Banana
(B) Bamboo
(C) Coconut
(D) Potato
78. Which set of plants bear cones?
(A) Pinus and Riccia
(B) Salvinia and Funaria
(C) Equisetum and Marchantia
(D) Cycas and Pinus
79. Which of the following is referred to as “natural genetic engineer”?
(A) Bacillus thuringiensis
(B) Agrobacterium tumefaciens
(C) Escherichia coli
(D) Saccharomyces cerevisiae
80. The name Kary Mullis is associated with
(A) Gel electrophoresis
(B) DNA fingerprinting
(C) Polymerase chain reaction
(D) DNA sequencing
81. ………. kidney formed from the posterior end of the nephrogenic mesoderm.
(A) Metanephros
(B) Pronephros
(C) Mesonephros
(D) None of the above
82. Match Column I with Column II and choose the correct answer using the codes given below
Column I Column II
(1) Lamiaceae (i) Vexillary aestivation
(2) Asteraceae (ii) Monadelphous stamens
(3) Fabaceae (iii) Gynobasic style
(4) Malvaceae (iv) Capitulum inflorescence
(A) 1-(iii) 2-(iv) 3-(i) 4-(ii)
(B) 1-(iv) 2-(ii) 3-(iii) 4-(i)
(C) 1-(ii) 2-(i) 3-(iv) 4-(iii)
(D) 1-(i) 2-(iii) 3-(ii) 4-(iv)
83. Hemerythrin
(A) It is a molecule which use copper atom to bind oxygen.
(B) There is no haem in this and Iron atom are bound directly to the protein.
(C) It is present in Arthropods.
(D) It is green when oxygenated and pink when deoxygenated
84. Which of the following is the linker protein?
(A) H1
(B) H2 A
(C) H2 B
(D) H3
85. Niacin is synthesized from the amino acid
(A) Threonine
(B) Tryptophane
(C) Methionine
(D) Isoleucine
86. Mucopeptides and muramic acid are the components of cell wall of members to which of the following class?
(A) Cyanophyceae
(B) Bacillariophyceae
(C) Phaeophyceae
(D) Charophyceae
87. Calcium carbide powder which is used for artificial ripening of fruits, produces ……………..
(A) Acetylene
(B) Ethylene
(C) Gibberellins
(D) None of the above
88. Bivalent chromosomes clearly appears as tetrads in
(A) Zygotene
(B) Pachytene
(C) Diakinesis
(D) Diplotene
89. Observe the following. Which of the above are not due to autosomal gene mutation?
(1) Huntington’s disease
(2) Sickle cell anaemia
(3) Albinism
(4) Turner’s syndrome
(5) Muscular dystrophy
(A) (1) and (2)
(B) (4) and (5)
(C) (3) and (5)
(D) (2) and (4)
90. Select false statement about bacterial flagella.
(A) Not surrounded by plasma membrane
(B) Made up of tubulin protein
(C) Show a range in number
(D) Composed of filament, hook and basal body
91. Choose the option given below that produces carbohydrates
(1) Fungi
(2) Algae
(3) Viruses
(4) All Bacteria
(5) Green plants
(A) (1) and (2)
(B) (4) and (2)
(C) (3) and (6)
(D) (2) and (5)
92. Chilgoza is obtained from a species of
(A) Cedrus
(B) Taxus
(C) Cycas
(D) Pinus
93. The curd formed by the action of lactic acid bacteria on milk, is rich in ……
(A) Vitamin C
(B) Vitamin B12
(C) Vitamin A
(D) Vitamin E
94. Which of the following plant is not a bryophyte?
(A) Cladonia
(B) Porella
(C) Anthoceros
(D) Polytrichum
95. The muramic acid is present in the cell wall of
(A) Lichens
(B) Moulds
(C) Blue-green algae
(D) Mycoplasma
96. Botulinum exotoxin prevents the release of
(A) ATP synthetase
(B) Thyroxine
(C) Amylase
(D) Acetylcholine
97. Which one of the following is not a measure for soil conservation, in modern times?
(A) Terracing
(B) Windbreaks
(C) Jhum cultivation
(D) Crop rotation
98. Hemerythrin pigment is formed in
(A) Brachiopods
(B) Gastropods
(C) Cephalopods
(D) Ophionoids
99. An example of alien weed species in India is ……….
(A) Acacia nilotica
(B) Carrot grass
(C) Prosopis cinereria
(D) Melia azadirach
100. Select the correct match from the following Extinct animal Country
(A) Thylacine – Africa
(B) Quagga – Mauritius
(C) Dodo – Australia
(D) Steller’s sea cow – Russia
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