YUVASENA MOCK CET EXAM
7
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BIOLOGY
1.
Sperm mother cells in the inner lining of seminiferous tubules are also known as
A) Spermatocytes
B) Spermatogonia
C) Spermatozoa
D) Spermatids
2.
When DNA fragments are subjected to an electric current on a gel, which one of
the fragments move the farthest?
A) t-RNA
B) Largest fragment
C) Smallest fragment
D) DNA library
3.
Mashroom belong to class:
A) Ascomycetes
C) Deuteromycetes
B) Basidiomycetes
D) Phycomycetes
4.
The chemical causing the transmision of nerve implse across synapses iS.
A) Acetylcholine
B) Choline
C) Cholinesterase
D) Acetic acid
5.
Difference exisiting between the parents and their offsprings are known as
A) Recombinants
B) Variants
C) Reproduction
D) Heredity
6.
Which of the apparatus is used in electrophoresis?
A) Agarose gel
B) Liquid gel
C) Plasminogen
D) DNA
7.
Clotting of blood during injury occurs due to
A) Formation of serum
B) Change of fibrinogen into fibrin
C) Destruction of RBCs
D) Killed WBCs in blood
8.
Enzyme required for removing RNA primer during DNA replication is
A) Primase
B) Ligase
C) DNA Polymerase I
D) DNA Polymerase III
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9.
Plant tissue culture is based on which one of the plant cell property ?
A) Division
B) Differentiation
C) Totipotency
D) Growth
10.
Crows also incubate the eggs of
A) Pigeon
C) Dove
B) Cuckoo
D) Weaver bird
Life without air will be
A) Reductional
C) Anaerobic
B) Impossible
D) Free from oxidative damage
11.
12.
Which one is not the property of thrombocytes in blood ?
A) Life span is 5-9 days
B) They are non nucleated cytoplasmic
masses
C) Their quantity is less than
D) Release an anticoagulant factor called
RBCs
thromboplastin
13.
Formation of RBCs in red bone marrow of spongy and long bones is called as
A) Erythroblastosis
B) Erythrocytosis
C) Erythrolysis
D) Erythropoiesis
14.
Bee keeping is practised in the areas having
A) More human population
B) More wild animals
C) More flowering plantations
D) More sugarcane plantation
15.
During Miller Urey’s experiment, liquefied gaseous mixture was collected in
A) Glass tray
B) U- shaped trap
C) Conical flask
D) Round bottom tube
16.
Which of the following is an amphibolic pathway?
A) Calvin cycle
B) Krebs cyrle
C) ETC
D) Glycolysis
17.
The cell mediated immunity inside the human body is carried by
A) B lymphocytes
B) Thrombocytes
C) Erthtrocytes
D) T lymphocytes
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18.
Photolysis of water occur in
A) Photo system -1
C) Calvin cycle
B) Photo system - II
D) Bacterial photosynthesis
19.
What is the meaning of organic evolution ?
A) History of the race
B) Development of the race
C) Development of the race
D) History and development of the race
in very short time
with varitaions
20.
Plasma cells are often called as antibody factory and release antibodies at a speed
of about (molecules per second)
A) 200
B) 20000
C) 2000
D) 200000
21.
If seed is defined as an ovule modified as a result of fertilization, one may expect
to find seed in
A) Vascular plants
B) Phannerogams
C) Angiosperm only
D) Gymnosperm only
22.
In which of the following are the mitochondria absent ?
A) Red algae
B) Blue green algae
C) Green algae
D) Brown algae
23.
The enzyme used for isolation of single cells from explant is
A) Cellulase
B) Ligninase
C) Catalase
D) Pectinase
24.
Antigens are also known as
A) Agglutinogens
C) Agglutinin
B) Epitope
D) Hapten
Satellite DNA is a useful tool in
A) Genetic engineering
C) Sex determination
B) Organ transplantation
D) Forensic science
25.
26.
The germpores on the pollen grains are found on the
A) Exine only
B) Intine only
C) Both exine and intine
D) Vegetative cell
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27.
Among the following which one is not a method of vegetative propagation?
A) Budding
B) Layering
C) Sowing
D) Tissue culture
28.
Which one of the following is wrongly matched ?
A) Repressor protein-binds to operator to stop enzyme synthesis
B) Operon-structural genes, operator and promoter
C) Transcription-writing information from DNA to t-RNA
D) Translation-using information in m-RNA to make protein
29.
The formation of embryo sac is called
A) Megasporogenesis
C) Microgametogenesis
B) Microsporogenesis
D) None of these
30.
Decomposers like fungi and bacteria are
A) Photoautotrophs
B) Chemoautotrophs
C) Heterotrophs and saprotrophs
D) Autotrophs and heterotrops
31.
Fallopian tubes are internally lined by
A) Columnar and ciliated epithilium
B) Columnar and cuboidal epithilium
C) Non striated muscles and ciliated epithilium
D) Cuboidal and glandular epithilium
32.
Adaptation of Labeo is
A) Volant
C) Fossorial
B) Arboreal
D) Aquatic
33.
Formation of ova in the ovary from the cells in egg nest by series of phases is
called as
A) Ovulation
B) Oogenesis
C) Oocytogenesis
D) Oophorectomy
34.
The main source of energy in an ecosystem is
A) Solar energy
B) Glucose
C) Heat liberated during photosynthesis
D) Heat liberated during respiration
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35.
The marine fish among the following varieties is
A) Stromateus
B) Labeo
C) Cirrhina
D) Catla
36.
Optical cranial nerve performs the function of
A) Sense of sight
B) Sense of hearing
C) Sense of smell
D) Sense of touch
37.
Mendel’s principle of segregation was based on
A) Gamete formation
B) Pollination
C) Genotype
D) Homozygosity
38.
Assimilatory power in Calvin cycles is used during
A) Formation of 3-c PGA
B) Conversion of PGA and PGAL
C) Formation of fructose 6 diphosphate from PGAL
D) Formation of glucose from fructose diphosphate
39.
Clones are stored in
A) Gene bank
C) Biological reserves
B) Book shelves
D) All of these
40.
Which of one of the following poultry bird is an exotic breed?
A) Galus
B) Bursa
C) Plymouth rock
D) White leg horn
41.
CKD generally leads to
A) Anaemia and large sized kidney
B) Nephritis and small sized kindey
C) Nephritis and large sized kindey
D) Anaemia and small sized kindey
42.
The medulla oblongata encloses the
A) Fourth ventricle
C) Second ventricle
43.
B) Optic lobe
D) Optic Capsule
Best methods to increase crop yield is
A) By sowing seeds of improved variety
B) Excess use of chemical fertilizer
C) By weed eradication
D) by use of tractors
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44.
Which organs in the body of animals do not have any evolutionary significance?
A) Homologous organs
B) Analogous organs
C) Vestigial organs
D) Most useful organs
45.
The n number of chromosomes in garden pea is
A) Seven
B) Ten
C) Eight
D) Fourteen
46.
The syndrome in which the individual somatic cell contains three sex
chromosomes XXX is consdiered as
A) Euploidy
B) Aneuploidy
C) Super male
D) Super female
47.
According to the findings of Human Genome Project, the number of genes that
human being have is
A) 20000
B) 80000
C) 100000
D) 40000
48.
Which one of the following is a physiological effect of gibberellin?
A) Parthenocarpy
B) Weed control
C) Abscission
D) Shortening of internodes
49.
Which one of the following is an Oyster mushroom?
A) Pleutorus florida
B) Pleutorus sojar caju
C) Agaricus bisporus and Agaricus
D) Pleutorus florida and Pleutorus sojar caju
50.
Morphological difference between male sex and female sex is called as
A) Bisexuality
B) Hermaphrodite
C) Diocoeus
D) Sexual dimorphism
51.
What is appearance of some ancestral traits in certain individuals of species called
as?
A) Reversion
B) Analogy
C) Homology
D) Recapitulation
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52.
Which one of the following is a secondary metabolite ?
A) Amino acid
B) Antibiotic
C) Protein
D) Polysaccharide
53.
Which is called power house of the cell ?
A) Mitochondria
B) Ribosomes
C) ATP
D) NADH2
54.
Which one is a common viral disease in poultry birds ?
A) Diarrhoea
B) Amoebiasis
C) Coccodiosis
D) Ranikhet
55.
Which of the following animal shows volant adaptations ?
A) Monkey
B) Cockroach
C) Parrot
D) Sharks
56.
Life of memory cells of the immune system is
A) Few days
B) Few weeks
C) Few hours
D) A few months to whole life
57.
Renal pelvis in kidney is
A) Lower expanded portion of ureter
C) Outer cortex in kidney
B) Upper expanded portion of
ureter
D) Inner medulla in kidney
58.
Tree like branching pattern is present on the surface of
A) Corpus callosum
B) Pons
C) Vermis
D) Medulla
59.
Ureolytic organisms which live in the area where water availability is less excrete
A) Isotonic urine
B) Hypotonic urine
C) Hypertonic urine
D) Semisolid urine
60.
The branch of medicine which deals with the study of properties of blood is
A) Haemology
B) Haematology
C) Haematocytology
D) Serology
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61.
Crossing over the choromosomes is well seen at a stage between
A) Leptotene and diplotene
B) Pachytene and leptotene
C) Zygotene and pachytene
D) Zygotene and diplotene
62.
Which of the following cross will produce constricted pods ?
A) II x Ii
B) II x II
C) Ii x Ii
D) Ii x II
63.
Experimental material used by Hershey and Chase for proving that DNA contorls
heredity was
A) Diplococcus pneumoniae
B) Salmonella typhimurium
C) T2 phage
D) TMV
64.
The phosphate group in nucleic acids is provided by
A) ATP
B) H3PO4
C) P2 O5
D) ADP
65.
Normal bleeding level of 2 to 5 days of bleeding phase in adult healthy female is
upto
A) 150 ml
B) 100 ml
C) 60 ml
D) 10 ml
66.
Colied thread like structures of chromosomes are called
A) Chromophores
B) Chromomeres
C) Chromonemata
D) Chromatids
67.
Emasculation is necessary during hybridisation in case of
A) Male parent
B) Sterile variety
C) Bisexual flowers
D) Unsexual flowers
68.
DNA is acidic due to
A) Sugar
C) Phosphoric acid
69.
B) Purine
D) Pyrimidine
The largest blood vessel in our body is
A) Aortic arch
B) Coronary sinus
C) Branchial artery
D) Pulmonary veins
as
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70.
In aves, the synthesis of uric acid from ammonia takes place by
A) Inosinic acid pathway
B) Succinic acid pathway
C) Ornithine acid pathway
D) Citric acid Pathway
71.
Stratification is more commom in
A) Deciduous forest
C) All type of forests
B) Tropical rain forest
D) Aquatic life
72.
Which one of the following is a primary consumer in maize field ecosystem ?
A) Phytoplankton
B) Lion
C) Grasshopper
D) Wolf
73.
During respiration pyruvic acid is formed when
A) Krebs cycle is possible
B) Mitchondria are present
C) O2 is available
D) None of these
74.
In which part of the mitochondria are malate dehydrogenase and fumarase present?
A) Outer membrane
B) Inner membrane
C) Mitochondrial matrix
D) Sub units of Fernandez and Moran
75.
Photo oxidation is
A) Light induced oxidative breakdown
C) Photolysis of water
B) Photorespiration
D) All of the above
76.
Reciprocal cross means
A) Cross of two individuals
B) Cross of male and female parents
C) Cross of same parents with reverse sex
D) Cross of F1 with its parents
77.
Who is called as the father of ecology ?
A) Reiter
B) Borlaug
C) J.S.Singh
D) Watson
78.
Which of the following work is not performed by worker bees?
A) Collection of nectar
B) Concentration of honey
C) Laying of eggs
D) Protection of hive
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79.
80.
Centre of micturition is
A) Optic lobe
C) Medulla
B) Cerebrum
D) Cerebellum
Antigens are found
A) On the cells surface
C) On the nuclear envelope
B) In the cytoplasm
D) In the neclus
81.
Which enzyme is used for conversion of 3 PGA to 2 PGA in glycolysis ?
A) Aldolase
B) Heyokinase
C) Isomerase
D) Mutase
82.
In grafting, stock and scion ought to be joined
A) Pith to pith
B) Xylem to xylem
C) Cambium to cambium
D) Phloem to phloem
83.
Whick one of the following pair is correctly matched ?
A) Male sterility - self pollination
B) Triticum boeticum - first domesticated wheat
C) Inbreeding - cross pollination
D) Hybrid vigour - lost due to inbreeding depression
84.
The amount of Iiquid filtrate produced by glomeruli of kidney in 24 hour period
is
A) 180 litres
B) 175 litres
C) 100 litres
D) 250 litres
85.
A variety of rice which is introduced from Taiwan :
A) IR - 8
B) Jaya
C) Ratna
D) Taichung Native - I
86.
Photophosphorylation means
A) CO2 is reduced to carbohydrates
B) Light energy is converted into biological form of chemical energy
C) Chemical energy is used to produce ATP
D) Formation of NADP
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87.
Which one is a transgenic crop ?
A) Brinjal
C) Grape
B) Potato
D) Tobacco
88.
Describe the position of the two kidneys in human beings.
A) At the same level
B) At the level of ovaries
C) Right kidney at a higher level than the left one
D) Left Kidney at a higher level than the right one
89.
A female child receives the X chromosomes from
A) mother only
B) father only
C) mother or father as per the time of fertilization
D) 50% from the mother and 50% from the father
90.
The material added during vaccine preparation which improves the immune
response to toxoids is
A) Diluent
B) Adjuvant
C) Agarose gel
D) Islet cell fluid
91.
Photolysis of water was experimentally demonstrated by
A) Using heavy isotope of hydrogen B) Using heavy isotope of O18
C) Robert Hill
D) All of the above
92.
Bioweapons are
A) More destructive than conventional weapons
B) Low cost weapons
C) Not detected as they are microscopic
D) All of the above
93.
Aspergillus niger is associated with
A) Synthesis of gibberellin
C) Synthesis of malic acid
94.
B) Synthesis of citric acid
D) Synthesis of cellulase
Testes and epididymis in males together continue in
A) Testicles
B) Testimere
C) Testosome
D) Wall of testes
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95.
A cross between pure tall pea plant with green pod and short plant with yellow
pod. How many short plants out of 16 would be expected in F2 ?
A) 9
B) 6
C) 3
D) 4
96.
Innermost tunica interna of blood vessels is
A) Cuboidal epithelium
B) Columnar epithilium
C) Squamous epithilium
D) Germinal epithelium
97.
Itch mite is
A) Ectoparasite
C) Intracellular parasite
B) Gut parasite
D) Body fluid parasite
The length of linker DNA molecule id
A) 496A0
C) 60A0
B) 340A0
D) 183.6A0
Xenia is related to
A) Xylem
C) Endosperm
B) Phloem
D) Pollen endosperm
98.
99.
100. An experiment which proved that organic compounds were the basis of life, was
first performed by
A) Oparin
B) Miller
C) Mendel
D) Lamark
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