CUET PG 2020 23.
Cytoskeletons are represented by
(1) Nucleoprotein filaments
20. Which one of the following cell organelle is (2) Lipoprotein filaments
considered as 'Cell within a cell" in both plant (3) Glycoprotein filaments
and animal cells? (4) Protein filaments
(1) Chloroplast
(2) Mitochondria 24. During translation, proteins are synthesized
(3) Ribosome (1) by ribosomes using the information on DNA
(4) Endoplasmic reticulum (2) by ribosomes using the information on tRNA
(3) by ribosomes using the information on mRNA
21. In the plasma membrane, the glycolipids are (4) by ribosomes using the information on rRNA
located at
(1) The outer layer of the plasma membrane 25. Which one of the following is used template
(2) The inner layer of the plasma membrane during transcription of Yeast?
(3) Symmetrically distributed between different (1) Sense strand
layers of the plasma membrane (2) Antisense strand
(4) Asymmetrically distributed between different (3) Both sense and antisense strand
layers of the plasma membrane (4) None of the above
22. Synthesis of DNA occurs during phase 26. DNA replication in E. coli follows
of the cell cycle (1) Semi-conservative model
(1) 'G1' Phase (2) 'G2 Phase (2) Dispersive model
(3) 'S' Phase (4) 'M' Phase (3) Conservative Model
(4) All the above
27. DNA is considered as genetic material because of
it's
(1) Self replicability (Autocatalytic)
(2) Hetero-catalytic property
(3) Mutatibility
(4) All of the above
28. Which one of the following is not a mechanism
of post translational modification?
(1) Intein splicing
(2) Proteolytic cleavage
(3) Apurinic cleavage
(4) O-linked glycosylation
29. Codon : Anticodon interaction is stabilized by
(1) Hydrogen bond
(2) Phosphodiester bond
(3) Electrostatic interaction
(4) Hydrophobic interaction
30. Which one the following metabolism in E.coli is
regulated by attenuation of concerned OPERON?
(1) Lactose metabolism
(2) Tryptophan metabolism
(3) Glucose metabolism
(4) Galactose metabolism
31. Zwitterions have several basic and acidic groups
on their surface. Which one of the following is a
zwitterion?
1
(1) Lecithin (2) Glycogen (4) the position of centromere in the chromosome
(3) Glycine (4) mRNA
32. Water is a universal biological solvent. Which of
the following does not support the statement?
(1) It has high specific heat
(2) It has high dielectric constant
(3) It is a polar liquid
(4) It solidifies at 0°C
33. The nature of the peptide bond is that of
(1) Glycosidic linkage (2) Amide linkage
(3) Ester Linkage (4) Ether linkage
34. In Michelis-Menten equation, the graph is always
(1) Linear (2) Negative
(3) Hyperbola (4) Bell shaped
35. What is the synonym for glycolysis?
(1) EMP Pathway (2) HMP shunt
(3) HS Pathway (4) ED Pathway
36. Which one of the following is not a water soluble
(1) Vit. 𝐵6
vitamin?
(4) Vit. 𝐵9
(2) Ascorbic Acid
(3) Vit. D
37. is a metalloprotein?
(1) Haemoglobin (2) Urease
(3) ATPase (4) Myosin
38. The 𝜶-helices are example of
(1) Primary structure
(2) Secondary structure
(3) Tertiary structure
(4) Quarternary structure
39. Oxidation of palmitic acid (C16) requires
of 𝜷-oxidation and yields
rounds
number
of Acetyl Coenzyme A
(1) Seven and eight (2) Eight and eight
(3) Eight and seven (4) None of the above
40. Maltose contains (the glycosidic
linakge).
(1) Glucose (𝛼1-4) Glucose
(2) Glucose (𝛽1-4) Glucose
(3) Glucose (𝛼1-2) Fructose
(4) Glucose (𝛽 1-2) Fructose
41. An allele is best defined as
(1) an alternative form of a gene
(2) the position of a gene on a chromosome
(3) cellular structure composed of DNA and protein
2
42. During gene interaction, If one gene masks the
effect of other then is
(1) Lethal gene (2) Epistatic gene
(3) Dominant gene (4) None of the above
43. The homozygosity and heterozygosity of a
progeny can
(1) Epistasis (2) Pleiotropy
(3) Test Cross (4) Back Cross
44. The segregating ratio for lethal gene action is best
represented by
(1) 15:1 (2) 13:3
(3) 9:7 (4) 2:1
45. The tendency of genes remain together during
the process of inheritance is known as
(1) Crossing over (2) Linkage
(3) Complementation (4) Mutation
46. Which of the following is correct order of
evolutionary history of human?
(1) Peking man, Neanderthal man, Homo sapiens,
Heidelberg man
(2) Peking man, Neanderthal man, Heidelberg man,
Cromagnon man
(3) Peking man, Heidelberg man, Neanderthal man,
Cromagnon man
(4) Peking man, Heidelberg man, Homo sapiens,
Neanderthal man
47. Which one of the following is considered as
missing link between reptiles and birds?
(1) Archaeopteryx (2) Pteranodon
(3) Avimimus (4) Caudipteryx
48. Transition type of gene mutation is represented
by
(1) GC substituted by TA
(2) CG substituted by GC
(3) AT substituted by CG
(4) AT substituted by GC
49. The trait follows mendelian inheritance pattern in
a population maintaining genetic equilibrium. If
16 % of the people showed the recessive trait,
then the frequency heterozygous dominant
individual in that population is
(1) 16 % (2) 24%
(3) 36 % (4) 48 %
50. An individual female with Down's syndrome is
best represented by
3
(1) 44 autosomes + XXY 60. A phage that destroys host cell is called
(2) 44 autosomes + XYY (1) Virulent Phage (2) Temperate Phage
(3) 45 autosomes + XX (3) Prophage (4) Lysogenic phage
(4) 45 autosomes + XY
61. Hospital acquired infections are known as
51. Which of the following cells is a part of immune (1) Transient infections
system? (2) Acquired Infections
(1) Macrophage (2) Eosinophil (3) Nosocomial infections
(3) Lymphocytes (4) All of the above (4) Contagious infections
52. Antibodies are 62. Which one of the following is not an antibiotic?
(1) DNAs and RNAS (2) Carbohydrates (1) Ampicillin (2) Cephalosporin
(3) Glycoproteins (4) All of the above (3) Streptomycin (4) None of the Above
53. Light chain and heavy chain of antibody are joine 63. Glycoprotein projections that serve to attach
(1) Hydrogen bond (2) Hydrophobic bond corona virus 19 (nCoV19) to the human host are
(3) Ionic bond (4) Di-sulphide bond called
(1) Spikes (2) Hooks
54. What is nucleotide BLAST? (3) Pilli (4) Tail fibres
(1) An algorithm to synthesize of nucleotides
(2) An algorithm for comparing DNA sequence 64. Which one of the following munoglobulin (19)
information gives a primary immune response?
(3) An algorithm to determine DNA damage (1) IgG (2) IgM
(4) None of the above (3) IgA (4) IgE
55. In agarose gel electrophoresis DNA samples 65. The monoclonal antibody recognizes
migrate towards (1) B- Cell (2) Antigen
(1) Cathode (2) Anode (3) Epitope (4) All the above
(3) Doesn't move (4) None of the above
66. Which one of the following enzyme is required
56. Phagocytosis is a concept for the photoreactivation of the DNA?
(1) Phagosomes are united to form a bigger vacuole (1) DNA Photoligase (2) DNA Photolyase
(2) Cell division process of phagocytes (3) AP endonuclease (4) DNA glycosylase
(3) Developmental stage of bacteriophage
(4) A mechanism used to remove foreign 67. Which among following is the causal reagent of
pathogens and cell debris swine flu?
(1) H1N1 virus
57. Rickets is caused by the deficiency of (2) Plasmodium falciparum
(1) Vitamin B1 (2) Vitamin C (3) Salmonella typhi
(3) Vitamin D (4) Vitamin A (4) nCOVID19
58. Which of the following stimulates the synthesis 68. Vascular bundles are absent in
of milk protein? (1) Gymnosperms (2) Angiosperms
(1) Luteinizing Hormone (LH) (3) Pteridophytes (4) All of the above
(2) Prolactin (PRL)
(3) Beta Growth hormone (𝛽GH) 69. Name of the plant hormone that is responsible
(4) FSH (Follicle stimulating hormone) for ripening of fruits?
(1) Ethylene (2) Auxin
59. The portion of the Drosophila body plan that will (3) Cytokinins (4) Gibberellins
produce the wing is called
(1) Telson (2) Dorsal 70. Which one of the following technique used for
(3) Abdomen (4) Thorax DNA fingerprinting of human beings?
(1) RFLP (2) RAPD
(3) SNP (4) All the above
4
71. Which one of the following is a genetically 87. How many number ATP molecules will be
modified crop? generated by the oxidation of one molecule of
(1) Bt Brinjal (2) Golden Rice Glucose through the aerobic respiration?
(3) Flavr-savr Tomato (4) All the Above
(1) 24 (2) 30
72. Which technique(s) were used for qualitative (3) 38 (4) 42
estimation DNA in a plant extract?
(1) Centrifugation (2) Electrophoresis 88. In the five kingdom system of classification, the
(3) Electroporation (4) All the above archaea nitrogen fixing organisms were included
under .
73. Which one of the following cloning vector (1) Protista (2) Monera
incorporate highest length DNA fragment? (3) Plantae (4) Fungi
(1) Bacterial artificial chromosome
(2) Yeast artificial chromosome 89. The Nucleosome core possessed with
(3) Phagemid (1) (H1, H2, H3, H4)2
(4) Cosmid (2) H1, [H2A, H2B, H3, H4]
(3) [H2A, H2B, H3, H4)2
74. Which technique is used to deduce the (4) None of the above
nucleotides of DNA fragments following desired
protocols? 90. The cycling of elements in an ecosystem is called
(1) Gel Electrophoresis (2) DNA sequencing .
(3) PCR Amplification (4) All the above (1) Chemical cycle
(2) Biogeochemical cycle
75. Secondary metabolites are produced through (3) Geological cycle
(4) Geochemical cycle
(1) Cell suspension culture (2) Anther culture
(3) Embryo culture (4) Meristem culture 91. Which one of the following is most appropriately
describes the term "cell line"?
76. Which one of the following method used (1) Sub culturing of transformed cells
synthesize desired DNA sequence in vitro? (2) Sub culturing of primary culture
(1) Genetic profiling (3) Multi layer culture
(2) Southern hybridization (4) None of the above
(3) Polymerase chain reaction
(4) Gene cloning 92. The enzyme used in standard PCR-based gene
amplification
77. The cDNA clone differs from genomic DNA clone (1) Taq polymerase (2) Klenow fragment
by (3) DNA polymerase-III (4) DNA polymerase-I
(1) presence of intron (2) absence of intron
(3) presence of exon (4) absence of exon 93. Resolving power of the microscope can be
increased by
78. The pressure exerted by the swelling plant (1) Using an illumination of shorter wave length
protoplast on the cell wall is known as and decreasing the numerical aperature
(1) Osmotic pressure (2) Turgor pressure (2) Using an illumination of shorter wave length
(3) Suction pressure (4) None of the above and increasing the numerical aperature
(3) Using an illumination of longer wave length
79. The stomata opens in night time and closes in and increasing the numerical aperature
day time in (4) Using an illumination of longer wave length
(1) C4 plants (2) C3 plants and decreasing the numerical aperature
(3) CAM plants (4) All of the above
94. According to the Beer-Lambet's law, absorbance
80. Non-cyclic photophosphorylation in c3 plants led is
to the production of (1) inversely proportional to concentration
(1) NADPH and ATP (2) NADH and ATP (2) directly proportional to concentration
(3) Only NADPH (4) Only ATP (3) directly proportional to the transmittance
(4) None of the above
5
95. The tendrils of garden peas coiling around any
support during long day is known as
(1) Phototrpism (2) Thigmotaxis
(3) Gravitropism (4) Thigmotropism
96. What do you mean by apoptosis?
(1) Programmed cell death
(2) Precise cell differentiation
(3) Uncontrolled growth alike cancer
(4) Cellular transport and growth
97. During gastrulation, the developing embryo
undergoes organization of the cells into a multi
layered structure, and each of the layer will be
differentiated into distinct parts in the fully
developed organisms in due course of time.
Which one of the following layer is responsible
for the development of skin and nervous system?
(1) Endoderm (2) Mesoderm
(3) Ectoderm (4) Blastoderm
98. The growth of an organism occurs when
(1) Anabolism is higher than catabolism
(2) Anabolism is lower than catabolism
(3) Anabolism is equivalent to catabolism
(4) None of the above
99. Name the unique cytokinin present in tender
coconut milk abundantly
(1) Indole-3-acetic acid
(2) 6-Benzyladenine
(3) Gelatin
(4) Zeatin
100. The principle of numerical taxonomy in
plant system was developed by
(1) Bentham and Hooker
(2) Sneath and Snokal
(3) Patnaik and Choudhary
(4) Gupta and Engler
6
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