MHT CET previous paper biology 2015

pqpapers August 07, 2022

Biology Question Paper-2015

 
1.In the first step of Monohybrid cross experiment, Mendel selected pea plants which were
 (1)pure tall as male and pure dwarf as female
 (2)pure tall as female and pure dwarf as male
 (3)heterozygous tall as male and pure dwarf as female
 (4)heterozygous tall as female and pure dwarf as male

CORRECT ANSWER

(2) pure tall as female and pure dwarf as male

2.In Griffith’s experiment, the conversion of R-type to S-type of Diplococcus Pneumoniae when mixed with heat killed S-type is called
 (1)mutation
 (2)transduction
 (3)transfection
 (4)transformation

CORRECT ANSWER

(4) transformation

3.Semidwarf rice variety IR-8 was developed in
 (1)Taiwan
 (2)Phillipines
 (3)India
 (4)China

CORRECT ANSWER

(2) Phillipines

4.Which one of the following is a non-endospermic seed ?
 (1)sunflower
 (2)coconut
 (3)ground nut
 (4)wheat

CORRECT ANSWER

(3) ground nut

5.Which one of the following is NOT a mycoherbicide ?
 (1)Phytophthora palmivora
 (2)Xanthomonas sp.
 (3)Alternaria crassa
 (4)Fusarium sp.

CORRECT ANSWER

(2) Xanthomonas sp.

6.During anaerobic respiration the conversion of pyruvate into acetaldehyde, along with co-enzyme TPP, the cofactor required is
 (1)`Mg^(++)`
 (2)`Mn^(++)`
 (3)`Fe^(++)`
 (4)`Zn^(++)`

CORRECT ANSWER

(4) `Zn^(++)`

7.An international treaty known as Montreal Protocol was signed to control emission of
 (1)UV rays
 (2)Ozone
 (3)CFC
 (4)Oxygen

CORRECT ANSWER

(3) CFC

8.Chloroplasts in higher plants are __________ shaped.
 (1)kidney
 (2)lens
 (3)bean
 (4)dome

CORRECT ANSWER

(2) lens

9.Pollengrain develops from __________ of anther.
 (1)epidermis
 (2)endothecium
 (3)tapetum
 (4)sporogenous tissue

CORRECT ANSWER

(4) sporogenous tissue

10.In processing of eukaryotic hn RNA, during protein synthesis tailing involves __________ of RNA.
 (1)Addition of adenylate residues at 3′ end
 (2)Addition of methyl guanosine triphosphate at 3′ end
 (3)Addition of methyl guanosine triphosphate at 5′ end
 (4)Removal of introns

CORRECT ANSWER

(1) Addition of adenylate residues at 3′ end

11.In a cross between red kernelled and white kernelled varieties of wheat showing polygenic inheritance the phenotypic ratio in F2 generation will be
 (1)1 : 6 : 15 : 20 : 15 : 6 : 1
 (2)1 : 4 : 6 : 4 : 1
 (3)1 : 2 : 1
 (4)2 : 1

CORRECT ANSWER

(2) 1 : 4 : 6 : 4 : 1

12.In angiosperms during development of embryo the suspensor cells develop from
 (1)oospore
 (2)integument
 (3)endosperm
 (4)cotyledon

CORRECT ANSWER

(1) oospore

13.Manganese, calcium and chloride ions present in PS-II play an important role in
 (1)Absorption of light
 (2)`CO_2` assimilation
 (3)Photolysis of water
 (4)ATP synthesis

CORRECT ANSWER

(3) Photolysis of water

14.Which process does the following equation represent ?
`C_6H_(12)O_6` + 2NAD + 2 ADP + 2Pi → 2 `CH_3` – CO – COOH + 2 `NADH_2 + 2 ATP`
 (1)complete glycolysis
 (2)complete aerobic respiration
 (3)complete anaerobic respiration
 (4)complete fermentation

CORRECT ANSWER

(1) complete glycolysis

15.The cloning vector M13 has genetic material
 (1)ssRNA
 (2)dsRNA
 (3)ssDNA
 (4)dsDNA

CORRECT ANSWER

(3) ssDNA

16.Earthworm is a
 (1)herbivore
 (2)secondary consumer
 (3)tertiary consumer
 (4)detrivore

CORRECT ANSWER

(4) detrivore

17.To induce formation of organs in a callus it is necessary to provide
 (1)growth hormones
 (2)water
 (3)soil
 (4)antibiotics

CORRECT ANSWER

(1) growth hormones

18.Anemophily is NOT observed in
 (1)Maize
 (2)Jowar
 (3)Sugarcane
 (4)Salvia

CORRECT ANSWER

(4) Salvia

19.In an ecosystem, the biotic components herbivorous are
 (1)photosynthetic
 (2)chemosynthetic
 (3)macro consumers
 (4)micro consumers

CORRECT ANSWER

(3) macro consumers

20.The visible portion of light spectrum useful in photosynthesis is referred to as
 (1)RFLP
 (2)PAR
 (3)VAM
 (4)VNTR

CORRECT ANSWER

(2) PAR

21.The microbe Pseudomonas denitrificans produces Vitamin
 (1)K
 (2)D
 (3)`B_2`
 (4)`B_(12)`

CORRECT ANSWER

(4) `B(12)`

22.If there are 1280 microspores in a tetralocular anther, how many microspore mother cells will be there in its each pollen chamber ?
 (1)80
 (2)160
 (3)240
 (4)1280

CORRECT ANSWER

(1) 80

23.Which one of the following plants DOES NOT help in vegetative propagation by leaves ?
 (1)Begonia
 (2)Kalanchoe
 (3)Bryophyllum
 (4)Oxalis

CORRECT ANSWER

(4) Oxalis

24.Given below are some reactions and the enzymes involved.
Identify the CORRECT pairs.
  I II
 1.Fructose 1,6 diphosphate → 3 PGAL + DHAPa.enolase
 2.Citrate → Cis – aconitateb.thiokinase
 3.Succinyl Co. A → succinatec.aconitase
 4.2 PGA → PEPAd.aldolase
 (1)1-d, 2-c, 3-b, 4-a
 (2)1-a, 2-b, 3-c, 4-d
 (3)1-b, 2-a, 3-d, 4-c
 (4)1-c, 2-d, 3-a, 4-b

CORRECT ANSWER

(1) 1-d, 2-c, 3-b, 4-a

25.Human skin colour is an example of
 (1)Intragenic interaction
 (2)Interallelic interaction
 (3)Quantitative inheritance
 (4)Pleiotropy

CORRECT ANSWER

(3) Quantitative inheritance

26.During DNA replication, the addition of nucleotides on the lagging strand occurs
 (1)towards the replicating fork
 (2)at a faster rate than leading strand
 (3)continuously
 (4)discontinuously

CORRECT ANSWER

(4) discontinuously

27.The technique of producing large number of genetically similar plants within short time by tissue culture is called
 (1)Organogenesis
 (2)Somatic hybridization
 (3)Micropropagation
 (4)Protoplast culture

CORRECT ANSWER

(3) Micropropagation

28.How many sense codons code for 20 known essential amino acids ?
 (1)61
 (2)62
 (3)63
 (4)64

CORRECT ANSWER

(1) 61

29.Which one of the following is NOT a natural method of vegetative propagation ?
 (1)runner
 (2)foliar buds
 (3)stem tuber
 (4)grafting

CORRECT ANSWER

(4) grafting

30.Transposons are sequences of
 (1)DNA
 (2)mRNA
 (3)rRNA
 (4)tRNA

CORRECT ANSWER

(1) DNA

31.A 340 Ã… long segment of DNA molecule has 20 thymine nitrogenous bases, what will be the number of guanine nitrogen bases in the same segment ?
 (1)10
 (2)40
 (3)80
 (4)160

CORRECT ANSWER

(3) 80

32.The final electron acceptor during ETS in respiration is
 (1)Hydrogen
 (2)Oxygen
 (3)FMN
 (4)Ubiquinone

CORRECT ANSWER

(2) Oxygen

33.The time taken from the fixation of `CO_2` to the formation of one glucose molecule is about _________ seconds.
 (1)20
 (2)40
 (3)60
 (4)90

CORRECT ANSWER

(4) 90

34.The secondary metabolite obtained from Catharanthus roseus is
 (1)vincristin
 (2)anthocyanin
 (3)menthol
 (4)nicotine

CORRECT ANSWER

(1) vincristin

35.Large stout, nocturnal flowers producing copious nectar and emitting fermenting fruity odor, are the adaptations for
 (1)Entomophily
 (2)Ornithophily
 (3)Chiropterophily
 (4)Anemophily

CORRECT ANSWER

(3) Chiropterophily

36.During Biogas production acetic acid is transformed into the final product by the enzymes of
 (1)Clostridium
 (2)Pseudomonas
 (3)Penicillium
 (4)Methanobacillus

CORRECT ANSWER

(4) Methanobacillus

37.The gymnospermic endosperm differs from an angiospermic endosperm because in gymnosperms it is
 (1)haploid and developed from female gametophyte
 (2)diploid and developed from female gametophyte
 (3)triploid and developed after fertilization
 (4)triploid and developed before fertilization

CORRECT ANSWER

(1) haploid and developed from female gametophyte

38.What is NOT true about emasculation of a flower while performing an artificial cross ?
 (1)It is removal of anthers from flower
 (2)It is done before anthesis
 (3)It is to avoid self pollination
 (4)It is done in flowers of plants selected as male parent

CORRECT ANSWER

(4) It is done in flowers of plants selected as male parent

39.Pusa shubhra is a variety of
 (1)cauliflower
 (2)chilli
 (3)wheat
 (4)cabbage

CORRECT ANSWER

(1) cauliflower

40.Which of the following is correct pair of pyrimidine bases ?
 (1)Adenine & Thymine
 (2)Adenine & Guanine
 (3)Thymine & Cytosine
 (4)Guanine & Cytosine

CORRECT ANSWER

(3) Thymine & Cytosine

41.In the nomenclature of enzyme restriction endonuclease the Roman numeral indicates
 (1)number of times it is used
 (2)the order of discovery from source
 (3)number of cuts on DNA
 (4)number of recombinants formed

CORRECT ANSWER

(2) the order of discovery from source

42.Environmental biotic factor that helps in pollination is
 (1)air
 (2)water
 (3)wind
 (4)insects

CORRECT ANSWER

(4) insects

43.How many types of gametes will be produced by an individual having genotype AaBbcc ?
 (1)four
 (2)three
 (3)two
 (4)one

CORRECT ANSWER

(1) four

44.Self pollination which involves two different flowers of the same plant, is called
 (1)autogamy
 (2)geitonogamy
 (3)xenogamy
 (4)hybridization

CORRECT ANSWER

(2) geitonogamy

45.The initial step in preparation of beer is
 (1)malting
 (2)carboxylation
 (3)clarification
 (4)distillation

CORRECT ANSWER

(1) malting

46.A desirable change in genotype of an organism is obtained by
 (1)DNA replication
 (2)protein synthesis
 (3)rDNA technology
 (4)m-RNA formation

CORRECT ANSWER

(3) rDNA technology

47.Considering mode of asexual reproduction, match the Column I with II and select the correct option :
  I II
 a.Yeasti.fragmentation
 b.Penicilliumii.zoospores
 c.Filamentous algaeiii.budding
 d.Chlamydomonasiv.conidia
 (1)a-iii, b-iv, c-i, d-ii
 (2)a-ii, b-iii, c-i, d-iv
 (3)a-iv, b-iii, c-ii, d-i
 (4)a-iii, b-ii, c-i, d-iv

CORRECT ANSWER

(1) a-iii, b-iv, c-i, d-ii

48.How much of the energy released during aerobic respiration is approximately conserved in the form of ATP ?
 (1)20%
 (2)40%
 (3)60%
 (4)100%

CORRECT ANSWER

(2) 40%

49.The deflection of pitch angle between two successive steps (rungs) of DNA is
 (1)72°
 (2)54°
 (3)36°
 (4)18°

CORRECT ANSWER

(3) 36°

50.Which one of the following is a CAM plant ?
 (1)Maize
 (2)Kalanchoe
 (3)Sugarcane
 (4)Jowar

CORRECT ANSWER

(2) Kalanchoe

51.One of the following cells secretes a hormone
 (1)Cells of Leydig
 (2)Cells of Sertoli
 (3)Primary spermatocyte
 (4)Secondary spermatocyte

CORRECT ANSWER

(1) Cells of Leydig

52.Find the odd one out, with respect to X-linkage.
 (1)Haemophilia
 (2)Myopia
 (3)Nephritis
 (4)Night blindness

CORRECT ANSWER

(3) Nephritis

53.The first fossil of Australopithecus was discovered in
 (1)Olduvai Gorge, Tanzania
 (2)Fayum deposits of Egypt
 (3)Siwalik hills in India
 (4)Taung in South Africa

CORRECT ANSWER

(4) Taung in South Africa

54.Which of the following options are CORRECT ?
 1.Heroin – Stimulant
 2.Marijuana – Cardiovascular
 3.Cocaine – Hallucinations
 4.Morphine – Sedative
 (1)1, 2 and 3
 (2)1, 3 and 4
 (3)2, 3 and 4
 (4)1, 2 and 4

CORRECT ANSWER

(3) 2, 3 and 4

55.Serotonin and Melatonin are hormones, secreted by
 (1)Pancreas
 (2)Pineal body
 (3)Pituitary gland
 (4)Thymus

CORRECT ANSWER

(2) Pineal body

56.The characters such as pointed elongated snout, strong and stout forelimbs, well developed claws are observed in ________ adaptation.
 (1)Arboreal
 (2)Aerial
 (3)Cursorial
 (4)Fossorial

CORRECT ANSWER

(4) Fossorial

57.Deposition of _______ in the joints causes gout.
 (1)Urea
 (2)Uric acid
 (3)Guanine
 (4)Ammonia

CORRECT ANSWER

(2) Uric acid

58.The glycoprotein, fertilizin is secreted by
 (1)Ovum
 (2)Ovary
 (3)Sperm
 (4)Testis

CORRECT ANSWER

(1) Ovum

59.In the given diagram I and II indicate
 (1)Chromomere and chromonemata
 (2)Centromere and secondary constriction
 (3)Secondary constriction and satellite
 (4)Telomere and satellite

CORRECT ANSWER

(4) Telomere and satellite

60.Find the CORRECT match :
  Column AColumn BColumn C
 i.MackeralRastrelligerFreshwater fish
 ii.Honey beeApisWax
 iii.MirgalaTacchardiaMarine waterfish
 iv.SilkwormBombyxMulberry silk
 (1)ii and iv
 (2)i and ii
 (3)iv only
 (4)i and iii

CORRECT ANSWER

(1) ii and iv

61.A Red list of endangered species is maintained by
 (1)CSIR
 (2)IUCN
 (3)NEERI
 (4)WLS

CORRECT ANSWER

(2) IUCN

62.The Human Genome Project (HGP) was initiated in
 (1)1988
 (2)1990
 (3)1992
 (4)1994

CORRECT ANSWER

(2) 1990

63.Ectoderm gives rise to
 (1)cornea, heart, bronchi, dentine
 (2)adrenal cortex, tongue, liver, retina
 (3)lungs, adrenal medulla, dermis, thyroid
 (4)enamel of teeth, nails, adrenal medulla, hair

CORRECT ANSWER

(4) enamel of teeth, nails, adrenal medulla, hair

64.Helper T – cells : Lymphokines as Killer T – cells : _____
 (1)Interferons
 (2)Lysozymes
 (3)Perforins
 (4)Prostaglandins

CORRECT ANSWER

(3) Perforins

65.Epicanthal skin fold and simian crease are characteristics of
 (1)Down’s syndrome
 (2)Klinefelter’s syndrome
 (3)Thalassemia
 (4)Turner’s syndrome

CORRECT ANSWER

(1) Down’s syndrome

66.Following are all breeds of cows EXCEPT
 (1)Jersey
 (2)Nagpuri
 (3)Sahiwal
 (4)Sindhi

CORRECT ANSWER

(2) Nagpuri

67.More than 95 % of transgenic animals are
 (1)Rabbits
 (2)Mice
 (3)Fish
 (4)Cows

CORRECT ANSWER

(2) Mice

68.Pick the ODD homologous pair out.
 (1)Bartholin’s Gland – Cowper’s Gland
 (2)Clitoris – Penis
 (3)Mons pubis – Glans penis
 (4)Labia majora – Scrotum

CORRECT ANSWER

(3) Mons pubis – Glans penis

69.Which is NOT the function of lymph ?
 (1)Transport R.B.C.s
 (2)Drain excess tissue fluid
 (3)Transport lymphocyte and antibodies
 (4)Transport absorbed fat

CORRECT ANSWER

(1) Transport R.B.C.s

70.A cuckoo laying eggs in the nest of other species of birds, is an example of
 (1)Adelphoparasitism
 (2)Broodparasitism
 (3)Ectoparasitism
 (4)Hyperparasitism

CORRECT ANSWER

(2) Broodparasitism

81.The reptiles, like dinosaurs were dominant in _____ period.
 (1)Cretaceous
 (2)Jurassic
 (3)Tertiary
 (4)Triassic

CORRECT ANSWER

(2) Jurassic

72.Select the CORRECT identification group of labelled parts I, II, III
 (1)I – Scala vestibuli, II – Scala media, III – Scala tympani
 (2)I – Scala vestibuli, II – Scala tympani, III – Scala media
 (3)I – Scala tympani, II – Scala media, III – Scala vestibuli
 (4)I – Scala media, II – Scala tympani, III – Scala media

CORRECT ANSWER

(1) I – Scala vestibuli, II – Scala media, III – Scala tympani

73.The Transgenic animals are generally produced for all of the following needs EXCEPT
 (1)Testing of chemical safety
 (2)Testing of vaccine safety
 (3)Stimulation of pathogenicity
 (4)Production of pharmacologically important proteins

CORRECT ANSWER

(3) Stimulation of pathogenicity

74.Match the following :
   
 i.Mercurya.Low blood pressure, blindness
 ii.Leadb.Hyperkeratosis, Liver cirrhosis
 iii.Arsenicc.Bone deformation, testicular atrophy
 iv.Cadmiumd.Abdominal pain, haemolysis
 e.Anaemia, convulsions
 (1)i-e, ii-d, iii-c, iv-b
 (2)i-d, ii-e, iii-b, iv-c
 (3)i-c, ii-b, iii-d, iv-a
 (4)i-b, ii-c, iii-d, iv-e

CORRECT ANSWER

(2) i-d, ii-e, iii-b, iv-c

75.Choose the CORRECT group of labellings
 (1)I – Trophoblast, II – Archenteron, III – Micromeres
 (2)I – Trophoblast, II – Blastocoel, III – Megameres
 (3)I – Trophoblast, II – Archenteron, III – Inner mass cells
 (4)I – Trophoblast, II – Blastocoel, III – Inner mass cells

CORRECT ANSWER

(4) I – Trophoblast, II – Blastocoel, III – Inner mass cells

76.All of the following animals are ureotelic EXCEPT
 (1)Frog
 (2)Snake
 (3)Turtle
 (4)Toad

CORRECT ANSWER

(2) Snake

77.The study of blood vessels is termed as
 (1)Angiology
 (2)Cardiology
 (3)Haematology
 (4)Histology

CORRECT ANSWER

(1) Angiology

78.Plasma cells are derived from
 (1)Cytotoxic T – cells
 (2)Helper T – cells
 (3)Memory B – cells
 (4)Memory T – cells

CORRECT ANSWER

(3) Memory B – cells

79.Darwin’s theory of Evolution CANNOT explain
 (1)Arrival of fittest
 (2)Natural selection
 (3)Prodigality of production
 (4)Struggle for existence

CORRECT ANSWER

(1) Arrival of fittest

80.During ovulation, the ovary releases
 (1)Oogonia
 (2)Ootid
 (3)Primary oocyte
 (4)Secondary oocyte

CORRECT ANSWER

(4) Secondary oocyte

81.Juxta glomerular cells of kidney secrete hormone
 (1)Angiotensinogen
 (2)Angiotensin II
 (3)Coherin
 (4)Renin

CORRECT ANSWER

(4) Renin

82.The marine fish among the following varieties is
 (1)Stromateus
 (2)Labeo
 (3)Cirrhina
 (4)Catla

CORRECT ANSWER

(1) Stromateus

83.Which of the following animal was selected by Morgan for studying linkage ?
 (1)Apis indica
 (2)Agrobacterium tumafaciens
 (3)Drosophila melanogaster
 (4)E. Coli

CORRECT ANSWER

(3) Drosophila melanogaster

84.The increase in blood flow to heart stimulates secretion of
 (1)Renin
 (2)Oxytocin
 (3)Antidiuretic hormone
 (4)Atrial natriuretic factor

CORRECT ANSWER

(4) Atrial natriuretic factor

85.Heaviness with severe chest pain which may disappear with rest indicates
 (1)Angina pectoris
 (2)Atherosclerosis
 (3)Arteriosclerosis
 (4)Hyperthyroidism

CORRECT ANSWER

(1) Angina pectoris

86.The co-ordinator between Nervous and endocrine system is
 (1)Thalamus
 (2)Hypothalamus
 (3)Epithalamus
 (4)Colliculus

CORRECT ANSWER

(2) Hypothalamus

87.Match the pairs of diseases and pathogens :
  I II
 1.Malariaa.Wuchereria bancrofti
 2.Filariasisb.Helminth
 3.Typhoidc.Plasmodium falciparum
 4.Schistosomiasisd.Salmonella typhi
 (1)1-c, 2-b, 3-a, 4-d
 (2)1-d, 2-a, 3-b, 4-c
 (3)1-a, 2-b, 3-c, 4-d
 (4)1-c, 2-a, 3-d, 4-b

CORRECT ANSWER

(4) 1-c, 2-a, 3-d, 4-b

88.The clot formation can be prevented by treatment with ________ in gene therapy.
 (1)DNase
 (2)Recombinant vaccine
 (3)TPA
 (4)TGF-B

CORRECT ANSWER

(3) TPA

89.Select the CORRECT match :
 (1)Gibbon – Cercopithecoidea
 (2)Lemur – Prosimii
 (3)New World Monkey – Hominoidea
 (4)Tarsier – Anthropoidea

CORRECT ANSWER

(2) Lemur – Prosimii

90.Atrial Natriuretic Factor (ANF) decreases
 (1)Blood pressure
 (2)Secretion of renin
 (3)Na+ excretion
 (4)Vasodilation

CORRECT ANSWER

(1) Blood pressure

91.Morula formed at the end of cleavage is ______ celled.
 (1)14
 (2)16
 (3)18
 (4)20

CORRECT ANSWER

(2) 16

92.Select the CORRECT pair
 (1)Adaptive Radiation – Darwin’s Finches
 (2)Connecting Link – Sewall – Wright effect
 (3)Genetic drift – Peppered moth
 (4)Industrial Melanism – Archeopteryx

CORRECT ANSWER

(1) Adaptive Radiation – Darwin’s Finches

93.How many pairs of sympathetic ganglia are present in ANS ?
 (1)10
 (2)12
 (3)22
 (4)31

CORRECT ANSWER

(3) 22

94.The first vaccine produced by Edward Jenner, was for protection against
 (1)Hepatitis
 (2)Influenza
 (3)Chicken pox
 (4)Small pox

CORRECT ANSWER

(4) Small pox

95.Which are the phagocytic cells from given diagram ?
 (1)I and V
 (2)I and III
 (3)I and IV
 (4)I and II

CORRECT ANSWER

(1) I and V

96.Forceful muscular contractions of uterine wall is involved in
 (1)Implantation
 (2)Lactation
 (3)Micturition
 (4)Parturition

CORRECT ANSWER

(4) Parturition

97.In mechanism of hormone action, which of the following is NOT a second messenger ?
 (1)Cyclic AMP
 (2)`IP_3`
 (3)`Ca^(++)`
 (4)`Mg^(++)`

CORRECT ANSWER

(4) `Mg^(++)`

98.One of the following pair of animals is an example of commensalism
 (1)Sacculina – crab
 (2)Plasmodium – Anopheles
 (3)Golden Jackal – Tiger
 (4)Ascaris – Man

CORRECT ANSWER

(3) Golden Jackal – Tiger

99.What is “After birth" referred to ?
 (1)Amniotic fluid passing out
 (2)Expulsion of baby
 (3)Expulsion of placenta, umbilical cord and foetal membrane
 (4)Secretion of hormone relaxin

CORRECT ANSWER

(3) Expulsion of placenta, umbilical cord and foetal membrane

100.Which group of cranial nerves control eye ball movements ?
 (1)Optic, Abducens, Pathetic
 (2)Optic, Oculomotor, Trochlear
 (3)Oculomotor, Abducens, Auditory
 (4)Oculomotor, Abducens, Trochlear

CORRECT ANSWER

(4) Oculomotor, Abducens, Trochlear

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