MHT-CET previous paper biology 2017

pqpapers August 08, 2022

Biology Question Paper-2017

 
1.The highest rate of photosynthesis in green plants is in _____ and _____ region of light spectrum.
 (1)yellow and orange
 (2)green and violet
 (3)red and blue
 (4)violet and blue

CORRECT ANSWER

(3) red and blue

2.In some species of family Asteraceae seeds are produced without fertilization. It is called as ________
 (1)apomixis
 (2)amphimixis
 (3)parthenocarpy
 (4)vivipary

CORRECT ANSWER

(1) apomixis

3.The pH of nutrient medium in plant tissue culture is adjusted between _____
 (1)3 – 4
 (2)4.1 – 4.8
 (3)5 – 5.8
 (4)6 – 7

CORRECT ANSWER

(3) 5 – 5.8

4.The simplest of all nutrient cycles operating in an ecosystem is ________ cycle
 (1)carbon
 (2)phosphorous
 (3)nitrogen
 (4)sulphur

CORRECT ANSWER

(2) phosphorous

5.Identify the microbial source for antibiotic streptomycin.
 (1)Streptomyces griseus
 (2)Streptomyces venezuelae
 (3)Penicillium chrysogenum
 (4)Staphylococcus aureus

CORRECT ANSWER

(1) Streptomyces griseus

6.Which one of the following process occurs inside the nucleus during protein synthesis in a eukaryotic cells ?
 (1)Processing of hnRNA
 (2)Activation of amino acids
 (3)Translation
 (4)Formation of polypeptide chain

CORRECT ANSWER

(1) Processing of hnRNA

7.In single Krebs Cycle decarboxylation takes place at ________ steps.
 (1)Five
 (2)Four
 (3)Three
 (4)Two

CORRECT ANSWER

(4) Two

8.The genetic material of `M_(13)` bacteriophage is _______
 (1)ds DNA
 (2)ds RNA
 (3)ss RNA
 (4)ss DNA

CORRECT ANSWER

(4) ss DNA

9.Motile zoospores are produced by
 (1)Chlamydomonas
 (2)Penicillium
 (3)Bacteria
 (4)Amoeba

CORRECT ANSWER

(1)Chlamydomonas

10.The suspensor during the development of an angiosperm embryo is formed from _______
 (1)basal cell
 (2)apical cell
 (3)embryonal cell
 (4)generative cell

CORRECT ANSWER

(1) basal cell

11.Which one of the following layer of the anther wall helps in its dehiscence ?
 (1)Epidermis
 (2)Middle layer
 (3)Endothecium
 (4)Tapetum

CORRECT ANSWER

(3) Endothecium

12.The triplet on coding strand of DNA is ATG. What would be the required anticodon on corresponding tRNA during translation ?
 (1)UAA
 (2)UAG
 (3)UGA
 (4)UAC

CORRECT ANSWER

(4) UAC

13.During anaerobic respiration, number of ATP molecules generated by the breakdown of 20 glucose molecule is _______
 (1)90
 (2)60
 (3)40
 (4)20

CORRECT ANSWER

(3) 40

14.In E. Coli, _______ operons are formed by grouping nearly _______ genes.
 (1)80 operons and 260 genes
 (2)75 operons and 260 genes
 (3)280 operons and 80 genes
 (4)280 operons and 75 genes

CORRECT ANSWER

(2) 75 operons and 260 genes

15.A slender, prostrate subaerial branch of the stem which creeps along the ground helping in vegetative reproduction is
 (1)stolon
 (2)sucker
 (3)runner
 (4)offset

CORRECT ANSWER

(3) runner

16.During fertilization if the pollen tube enters the ovule through integuments, then it is called as _______
 (1)mesogamy
 (2)porogamy
 (3)chalazogamy
 (4)siphonogamy

CORRECT ANSWER

(1) mesogamy

17.To determine whether `F_1` hybrid is homozygous or heterozygous for a particular trait ________ cross is performed.
 (1)monohybrid
 (2)test
 (3)back
 (4)reciprocal

CORRECT ANSWER

(2) test

18.Number of oxygen molecules utilized in glycolysis is ________
 (1)0
 (2)2
 (3)4
 (4)6

CORRECT ANSWER

(1) 0

19.A cell organelle which lacks membrane, consists of 65% rRNA, 35% proteins and helps in protein synthesis is _______
 (1)nucleus
 (2)nucleoid
 (3)ribosome
 (4)nucleolus

CORRECT ANSWER

(3) ribosome

20.Cyclic photophosphorylation will NOT take place in the absence of ______
 (1)carotenoids
 (2)chlorophyll–a
 (3)xanthophylls
 (4)phycoerythrin

CORRECT ANSWER

(2) chlorophyll–a

21.How many different types of gametes will be formed by a pea plant with genotype TtYy?
 (1)16
 (2)08
 (3)06
 (4)04

CORRECT ANSWER

(4) 04

22.The megasporangium proper of an angiosperm ovule is represented by
 (1)integument
 (2)funicle
 (3)nucellus
 (4)micropyle

CORRECT ANSWER

(3) nucellus

23.Which one of the following is an essential factor for photophosphorylation?
 (1)Sunlight
 (2)Carbohydrate
 (3)Oxygen
 (4)Water

CORRECT ANSWER

(1) Sunlight

24.Generally the pollen grains of monocots are ______ and dicots are _____ respectively.
 (1)uniporate and biporate
 (2)biporate and triporate
 (3)uniporate and triporate
 (4)triporate and tetraporate

CORRECT ANSWER

(3) uniporate and triporate

25.A nucleic acid whose molecular weight ranges between 40,000 to 1,00,000 in a cell is _____
 (1)DNA
 (2)mRNA
 (3)tRNA
 (4)rRNA

CORRECT ANSWER

(4) rRNA

26.Which of the following is an example of intergenic gene interaction?
 (1)Multiple alleles
 (2)Co–dominance
 (3)Incomplete dominance
 (4)Polygenes

CORRECT ANSWER

(4) Polygenes

27.Which one of the following is NOT a disadvantage of self pollination?
 (1)No scope for developing improved varieties
 (2)Progeny becomes weaker
 (3)Genetic stability can be maintained
 (4)Less adaptability to climatic variations

CORRECT ANSWER

(3) Genetic stability can be maintained

28.Dark reaction of photosynthesis is a cyclic process as ______ is regenerated.
 (1)RuBP
 (2)`CO_2`
 (3)Glucose
 (4)PGA

CORRECT ANSWER

(1) RuBP

29.What is the approximate size of nucleus in a typical mammalian cell?
 (1)2.2 meter
 (2)1.2 meter
 (3)`10^(–4)` meter
 (4)`10^(–6)` meter

CORRECT ANSWER

(4) `10^(–6)` meter

30.In two turns of Krebs Cycle the number of `NADH_2` molecules produced is _______
 (1)Six
 (2)Five
 (3)Four
 (4)Three

CORRECT ANSWER

(1) Six

31.Which one of the following enzyme cuts the DNA within the specific positions?
 (1)Exonuclease
 (2)Alkaline phosphatase
 (3)Restriction endonuclease
 (4)Reverse transcriptase

CORRECT ANSWER

(3) Restriction endonuclease

32.The decomposers in an ecosystem are ______
 (1)autotrophs
 (2)microconsumers
 (3)macroconsumers
 (4)abiotic components

CORRECT ANSWER

(2) microconsumers

33.Which of the following represents the correct sequence of nucleic acids considering their decreasing molecular weight?
 (1)DNA → mRNA → tRNA → rRNA
 (2)DNA → mRNA → rRNA → tRNA
 (3)DNA → rRNA → tRNA → mRNA
 (4)DNA → tRNA → mRNA → rRNA

CORRECT ANSWER

(2) DNA → mRNA → rRNA → tRNA

34.In members of family Crassulaceae _______is regenerated from starch during night.
 (1)Phospho Enol Pyruvic Acid
 (2)Pyruvic Acid
 (3)Malic Acid
 (4)Oxalo Acetic Acid

CORRECT ANSWER

(1) Phospho Enol Pyruvic Acid

35.Which one of the following plants reproduces vegetatively by epiphyllous buds?
 (1)Sweet potato
 (2)Potato
 (3)Onion
 (4)Kalanchoe

CORRECT ANSWER

(4) Kalanchoe

36.In Aulosira, Tolypothrix and Nostoc, ____________ are the sites for Nitrogen fixation.
 (1)vesicles
 (2)arbuscles
 (3)akinetes
 (4)heterocysts

CORRECT ANSWER

(4) heterocysts

37.The number of phenotype recombinant offsprings formed during `F_2` generation of a dihybrid cross are _______________
 (1)9/16
 (2)7/16
 (3)6/16
 (4)4/16

CORRECT ANSWER

(3) 6/16

38.During glycolysis the compounds PGAL and DHAP are formed from fructose 1, 6 diphosphate by________________
 (1)cleavage
 (2)isomerisation
 (3)phosphorylation
 (4)condensation

CORRECT ANSWER

(1) cleavage

39.Select correct statement from the following :
 (1)In a DNA molecule, the two strands are antiparallel and non complementary.
 (2)The rRNA is always present in variously folded form.
 (3)During DNA replication, leading strand is formed in 3' → 5' while lagging strand is formed in 5' → 3' direction.
 (4)The mRNA molecule may be straight or coiled upon itself to form a hairpin like shape.

CORRECT ANSWER

(2) The rRNA is always present in variously folded form.

40.Relatively small DNA molecules of plasmids can be identified ___________
 (1)due to similarity to original nuclear DNA molecule
 (2)by their restriction fragment patterns
 (3)by the size of bacterial cell
 (4)by their circular shape

CORRECT ANSWER

(2) by their restriction fragment patterns

41.Stamens with long bifurcated connective are found in ________________ flower.
 (1)Bignonia
 (2)Bombax
 (3)Salvia
 (4)Cestrum

CORRECT ANSWER

(3) Salvia

42.The spatial pattern of density and distribution of species along a horizontal gradient is called as _______
 (1)Stratification
 (2)zonation
 (3)trophic niche
 (4)volume niche

CORRECT ANSWER

(2) zonation

43.The cos ends of DNA of lambda phage has _____________ nucleotides.
 (1)Five
 (2)Ten
 (3)Twelve
 (4)Fifteen

CORRECT ANSWER

(3) Twelve

44.The `CO_2` content in biogas ranges from _________
 (1)10 – 14%
 (2)15 – 45%
 (3)50–60%
 (4)70 –80%

CORRECT ANSWER

(2) 15 – 45%

45.Which of the following is an algal source of SCP?
 (1)Candida
 (2)Methanobacillus
 (3)Chlorella
 (4)Saccharomyces

CORRECT ANSWER

(2)Methanobacillus

46.The plasmid of which one of the following has ‘Nif’ gene in it?
 (1)Rhizobium
 (2)Agrobacterium tumefaciens
 (3)Bacillus thuringiensis
 (4)Salmonella typhimurium

CORRECT ANSWER

(1)Rhizobium

47.Which one of the following material is NOT safe to prepare carry bags ?
 (1)Cloth
 (2)Paper
 (3)Jute
 (4)Polythene

CORRECT ANSWER

(4) Polythene

48.Which one of the following disease is caused by bacteria?
 (1)Red rot of sugarcane
 (2)Black rot of crucifers
 (3)Brown rust of wheat
 (4)Late blight of potato

CORRECT ANSWER

(2) Black rot of crucifers

49.If the cells of the nucellus in the angiosperm ovule contains 24 chromosomes, what will be the number of chromosomes in the endosperm of a self pollinated flower?
 (1)12
 (2)24
 (3)36
 (4)48

CORRECT ANSWER

(3) 36

50.Which one of the following is NOT a bacterial herbicide?
 (1)Pseudomonas sp.
 (2)Xanthomonas sp.
 (3)Fusarium sp.
 (4)Agrobacterium sp.

CORRECT ANSWER

(3) Fusarium sp.

51.Formation of urea takes place in the ______.
 (1)Heart
 (2)Kidney
 (3)Liver
 (4)Lung

CORRECT ANSWER

(3) Liver

52.In MOET technique, ______ is administered to bring about super ovulation.
 (1)ACTH
 (2)FSH
 (3)LH
 (4)TSH

CORRECT ANSWER

(2) FSH

53.Seymouria is a connecting link between ________.
 (1)Aves and mammals
 (2)Amphibians and Reptiles
 (3)Pisces and Amphibians
 (4)Reptiles and Aves

CORRECT ANSWER

(2) Amphibians and Reptiles

54.Which one of the following is NOT an example of ex-situ conservation of endangered species?
 (1)Zoological park
 (2)National park
 (3)Culture collection
 (4)Botanical garden

CORRECT ANSWER

(2) National park

55.Atrial systole lasts for _______ in Cardiac Cycle.
 (1)0.1 second
 (2)0.3 second
 (3)0.5 second
 (4)0.7 second

CORRECT ANSWER

(1) 0.1 second

56.Select the correct match :
  Column - A Column - B
 a)Seminal fluidi)Corpus spongiosum
 b)Prostate glandii)Membranous urethra
 c)Ejaculatory ductiii)Clitoris
 d)Erectile tissuesiv)Fructose
 v)Prostaglandins
 (1) a) - (iv)
 (2)b) - (v)
 (3)c) - (i)
 (4)d) - (ii)

CORRECT ANSWER

(1) a) - (iv)

57.Transgenic animals are extensively used for all of the following procedures EXCEPT
 (1)Bioremediation
 (2)Chemical safety
 (3)Vaccine safety
 (4)Toxicity test

CORRECT ANSWER

(1) Bioremediation

58.Grave’s disease is characterised by the following EXCEPT
 (1)Deposition of fats in eye sockets
 (2)Enlargement of thyroid gland
 (3)Weight loss
 (4)Weight gain

CORRECT ANSWER

(4) Weight gain

59.Feminised males have _______ chromosomes.
 (1)44
 (2)45
 (3)46
 (4)47

CORRECT ANSWER

(4) 47

60.The post-fertilization change involves _____.
 (1)Haploid gametic maturation
 (2)Introduction of centrioles in the ovum
 (3)Inhibition of Meiosis - II
 (4)Formation of vitelline membrane

CORRECT ANSWER

(2) Introduction of centrioles in the ovum

61.Deposition of fatty substances in the lining of arteries is termed as ______.
 (1)Arteriosclerosis
 (2)Atherosclerosis
 (3)Arthritis
 (4)Angiogenesis

CORRECT ANSWER

(2) Atherosclerosis

62.An axial filament in the tail of sperm is modified _______.
 (1)Distal centriole
 (2)Endoplasmic reticulum
 (3)Golgi complex
 (4)Proximal centriole

CORRECT ANSWER

(1) Distal centriole

63.In DNA fingerprinting technique, the radioactive intermediates formed during hybridization are ____ molecules
 (1)Double-stranded DNA
 (2)Single-stranded DNA
 (3)Single-stranded mRNA
 (4)Double-stranded rRNA

CORRECT ANSWER

(1) Double-stranded DNA

64.The functional area of human cerebrum marked by ‘X’ is _________.
 (1)Wernicke’s area
 (2)Somato-sensory area
 (3)Premotor area
 (4)Broca’s area

CORRECT ANSWER

(4) Broca’s area

65.Uraemia is indicated when the blood urea level rises above ________
 (1)0.05%
 (2)0.04 %
 (3)0.03%
 (4)0.02%

CORRECT ANSWER

(1) 0.05%

66.Introduction of attenuated pathogens in human body results in ________
 (1)Artificial acquired active immunity
 (2)Artificial acquired passive immunity
 (3)Natural acquired active immunity
 (4)Natural acquired passive immunity

CORRECT ANSWER

(1) Artificial acquired active immunity

67.HCG is secreted by _________
 (1)Allantois
 (2)Corona radiata
 (3)Corpus luteum
 (4)Placenta

CORRECT ANSWER

(4) Placenta

68.Banting and Best successfully purified insulin from the pancreas of _______
 (1)Guinea pig
 (2)Dog
 (3)Cow
 (4)Buffalo

CORRECT ANSWER

(2) Dog

69.Organ of Corti is located on the ________
 (1)Basilar membrane
 (2)Basement membrane
 (3)Reissner membrane
 (4)Synovial membrane

CORRECT ANSWER

(1) Basilar membrane

70.The ____________ is a primary constriction
 (1)Telomere
 (2)Sarcomere
 (3)Chromomere
 (4)Centromere

CORRECT ANSWER

(4) Centromere

71.Southern blotting technique uses _________ paper for embedding DNA strands.
 (1)Whatman' No. 1
 (2)Parchment
 (3)Nitrocellulose
 (4)Cellophane

CORRECT ANSWER

(3) Nitrocellulose

72.If cranial nerves : 12 pairs, then spinal nerves:
 (1)30 pairs
 (2)31 pairs
 (3)32 pairs
 (4)33 pairs

CORRECT ANSWER

(2) 31 pairs

73.One of the following is NOT an example of incomplete sex-linkage.
 (1)Total colour-blindness
 (2)Retinitis pigmentosa
 (3)Nephritis
 (4)Myopia

CORRECT ANSWER

(4) Myopia

74.During secretory phase of menstrual cycle, the endometrial lining attains thickness of __________
 (1)10 mm - 12 mm
 (2)5 mm - 6 mm
 (3)3 mm - 4 mm
 (4)1 mm - 2 mm

CORRECT ANSWER

(2) 5 mm - 6 mm

75.Homo habilis is also called _________
 (1)Tool maker man
 (2)Man with ape brain
 (3)Java ape man
 (4)Heidelberg man

CORRECT ANSWER

(1) Tool maker man

76.The prostatic fluid forms about ___________ of total volume of semen.
 (1)60%
 (2)50%
 (3)40%
 (4)30%

CORRECT ANSWER

(4) 30%

77.In gene therapy, __________ can be treated by gene DNase.
 (1)Pituitary dwarfism
 (2)Hepatitis - B
 (3)Hemophilia
 (4)Cystic fibrosis

CORRECT ANSWER

(4) Cystic fibrosis

78.Stimulation of RBC production is by the hormone _________
 (1)Aldosterone
 (2)Adrenaline
 (3)Cortisol
 (4)Nor-Adrenaline

CORRECT ANSWER

(3) Cortisol

79.The yellow colour of normal urine is due to
 (1)Bilirubin
 (2)Biliverdin
 (3)Urochrome
 (4)Uric acid

CORRECT ANSWER

(3) Urochrome

80.Mule is an example of _______
 (1)Cross-breeding
 (2)Interspecific Hybridization
 (3)Out-breeding
 (4)Out-crossing

CORRECT ANSWER

(2) Interspecific Hybridization

81.Select the correct match :
  Column - A  Column - B
 a)Rock beei)Apis indica
 b)Little beeii)Apis dorsata
 c)European beeiii)Apis florea
 d)Indian beeiv)Apis mellifera
 (1)a - iv, b - i, c - iii, d - ii
 (2)a - iii, b - ii, c - iv, d - i
 (3)a - ii, b - iii, c - iv, d - i
 (4)a - iv, b - iii, c - i, d - ii

CORRECT ANSWER

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

82.When members of a population attain sexual maturity at different times preventing inter-breeding, it is termed as _________ isolation.
 (1)Seasonal
 (2)Mechanical
 (3)Habitat
 (4)Ethological

CORRECT ANSWER

(1) Seasonal

83.One of the following is a positive inter-action in a population.
 (1)Adamsia - Hermit Crab
 (2)Plasmodium - Mosquito
 (3)Sacculina - Crab
 (4)Wuchereria - Man

CORRECT ANSWER

(1) Adamsia - Hermit Crab

84.Mitral valve and tricuspid valve are attached to the papillary muscles by ______
 (1)Corpus callosum
 (2)Columnae carnae
 (3)Crura cerebri
 (4)Chordae tendinae

CORRECT ANSWER

(4) Chordae tendinae

85.Cytotoxic T-cells are ______
 (1)Helper T-cells
 (2)Killer T-cells
 (3)Memory T-cells
 (4)Suppressor T-cells

CORRECT ANSWER

(2) Killer T-cells

86.Organisms possessing strong and stout forelimbs with clawed digits show ______ adaptations.
 (1)Arboreal
 (2)Cursorial
 (3)Fossorial
 (4)Volant

CORRECT ANSWER

(3) Fossorial

87. Athlete's foot is caused by a _____
 (1)Virus
 (2)Roundworm
 (3)Fungus
 (4)Bacterium

CORRECT ANSWER

(3) Fungus

88.The birth control pill contains _____
 (1)Progesterone and estrogen
 (2)LH and estrogen
 (3)FSH and LH
 (4)FSH and estrogen

CORRECT ANSWER

(1) Progesterone and estrogen

89.Find the correct match :
  Column A Column B
 a)Tactile receptori)Taste
 b)Frigido receptorii)Touch
 c)Gustato receptoriii)Pressure
 d)Tango receptoriv)Cold
 v)Tension
 (1)a - iii
 (2)b - v
 (3)c - i
 (4)d - iv

CORRECT ANSWER

(3) c - i

90.Select the correct sequence of the `F_1` generation.
 (1)⓵ `- X^HX^H`, ⓶ `-X^hX^H`, ⓷ `- X^HY`, ⓸ `- X^HY`
 (2)⓵ `- X^HX^h`, ⓶ `- X^HX^h`, ⓷ `- X^H^Y`, ⓸ `- X^HY`
 (3)⓵ `- X^HX^h`, ⓶ `- X^hX^H`, ⓷ `- X^hY`, ⓸ `- X^hY`
 (4)⓵ `- X^hX^H,` ⓶ `- X^HX^h`, ⓷ `- X^HY`, ⓸ `- X^hY`

CORRECT ANSWER

(2) ⓵ `- X^HX^h`, ⓶  `- X^HX^h`, ⓷ `- X^H^Y`, ⓸ `- X^HY`

91.Treponema pallidum is a _____ bacterium.
 (1)Streptococcus
 (2)Streptobacillus
 (3)Spirochaete
 (4)Oligochaete

CORRECT ANSWER

(3) Spirochaete

92.In the given diagram, water absorption does NOT occur in part labelled as _____
 (1)W
 (2)X
 (3)Y
 (4)Z

CORRECT ANSWER

(3) Y

93.Maximum cranial capacity is found in ________
 (1)Homo habilis
 (2)Homo erectus
 (3)Homo neanderthalensis
 (4)Homo sapiens fossilis

CORRECT ANSWER

(4) Homo sapiens fossilis

94.Methods to control air pollution include the following EXCEPT
 (1)Scrubber
 (2)Electrostatic precipitator
 (3)Electrodialysis
 (4)Catalytic converter

CORRECT ANSWER

(3) Electrodialysis

95.During sinus arrhythmia _________
 (1)Heart rate increases during inspiration
 (2)Heart beat decreases during inspiration
 (3)Heart rate increases during expiration
 (4)Heart rate remains constant

CORRECT ANSWER

(1) Heart rate increases during inspiration

96.Francisco Redi and Spallanzani disproved the theory of _______ by their classical experiments.
 (1)Abiogenesis
 (2)Biogenesis
 (3)Cosmozoic
 (4)Special creation

CORRECT ANSWER

(1) Abiogenesis

97.Density of population increases when __________
 (1)Emigration increases
 (2)Immigration decreases
 (3)Mortality increases
 (4)Natality increases

CORRECT ANSWER

(4) Natality increases

98.Antibodies are synthesized by _______
 (1)Eosinophil
 (2)Lymphocyte
 (3)Monocyte
 (4)Neutrophil

CORRECT ANSWER

(2) Lymphocyte

99.Kupffer’s cells of liver are an example of _______
 (1)Anatomical barrier
 (2)Inflammatory barrier
 (3)Physiological barrier
 (4)Phagocytic barrier

CORRECT ANSWER

(4) Phagocytic barrier

100.The spermiogenesis involves all of the following EXCEPT
 (1)Formation of mitochondrial sheath
 (2)Formation of proximal and distal centrioles
 (3)Formation of acrosomes
 (4)Shortening of sperm

CORRECT ANSWER

(4) Shortening of sperm

Post a Comment

0 Comments

BOTTOM ADS