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Quiz 10
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Q.1
Theory of pangenesis was given by ... ... [ BHU 2008]
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a) Darwin
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b) Lamarck
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c) Hugo de Vries
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d) Oparin
Explanation
Answer : (a)
Q.2
Genetic drift is change of ... ... [ CBSE 1993 ]
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a) Gene frequency in same generation
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b) Appearance of recessive genes
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c) Gene frequency from one generation to next
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d) None of the above
Explanation
Answer : (c)
Q.3
Organisms present at different places without any traces in between show ... ... [ CPMT 1997 ]
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a) Speciation
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b) Discontinuous distribution
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c) Punctured equilibrium
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d) Migration
Explanation
Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics. The demands of a different environment or the characteristics of the members of the new group will differentiate the new species from their ancestors. Answer : (a)
Q.4
Parallelism is ... ... [ CBSE 1990 ]
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a) Adaptive divergence
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b) Adaptive divergence of widely separated species
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c) Adaptive convergence of widely different species
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d) Adaptive convergence of closely related groups
Explanation
Answer : (d)
Q.5
Naturalist who sailed round the world in ship Beagle was ... .. [ AMU 2000 ]
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a) Chaels Lyell
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b) Charles Darwin
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c) Alfred Wallace
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d) Lamarck
Explanation
Answer : (b)
Q.6
Who said that organism develop from preexisting organisms ... .. [ CPMT 1994 ]
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a) Aristotle
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b) Louis Pasteur
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c) Oparin
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d) Morgan
Explanation
Answer : (b)
Q.7
Phylogeny is ... ... [ MPPMT 1998 ]
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a) Development stages of an individual
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b) Castes of files
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c) Development of an organ
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d) Developmental history of race
Explanation
Answer : (d)
Q.8
Organs related through common descent but now functionally different are ... .. [ CPMT 2004, JKCMEE 2005 ]
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a) Analogous
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b) Homologous
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c) Divergent organs
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d) Parallel organs
Explanation
Answer : (b)
Q.9
Recombination of genes occurs at ... .. [ JKCMEE 2002 ]
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a) Prophase of mitosis
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b) Prophase I of meiosis
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c) Metaphase II of meiosis
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d) Prophase II of meiosis
Explanation
Answer : (b)
Q.10
Hardy - Weinber principle explains ... .. [ DPMT 2005]
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a) Genetic drift
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b) Genetic equilibrium
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c) Genetic incompatibility
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d) Genetic load
Explanation
Answer : (b)
Q.11
Coacervates are ... ... [ BHU 1997 ]
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a) Lipoproteins
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b) Mixture of ammonia, carbohydrates and water.
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c) Colloidal suspensions
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d) Fatty acids and nitrogenous compounds
Explanation
Answer : (c)
Q.12
Primitive atmosphere of earth contained water vapours, hydrogen, ammonia and ... .. [ HPPMT 2010 ]
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a) CO2
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b) O2
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c) N2
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d) Methane
Explanation
Answer : (d)
Q.13
Which of the following is not correctly paired ... ... [ Odisha 2002 ]
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a) Mesozoic → Age of mammals
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b) Study of fossils → Paleontology
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c) Mutation theory → Hugo de Vries
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d) Origin of Species → Charles Darwin
Explanation
Answer : (a)
Q.14
Biogenetic law was proposed by ... .. [ CPMT 1994
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a) Von Baer and Haeckel
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b) Von baer and Aristotle
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c) Haeckel and Mendel
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d) Mendel and Griffith
Explanation
Answer : (a)
Q.15
Experimental proof that organic compounds formed the basis of evolution was given by ... ... [ DPMT 2002 [
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a) Oparin
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b) Pasteur
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c) Miller and Urey
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d) Spallanzani
Explanation
Answer : (c)
Q.16
Experiment to prove chemical basis of origin of life carries out by Urey and Miller used NH3 and ... .. [ Bihar PMT 2002]
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a) H2 and H2
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b) H2, CH4, H2O
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c) CH4 and H2O
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d) CH4 and O2
Explanation
Answer : (b)
Q.17
Occurrence of higher number of endemic species in South America and Australia is due to ... ... [ AFMC 2007 ]
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a) Retrogressive evolution
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b) Continental separation
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c) These species have become extinct form other regions
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d) Absence of terrestrial links between these places
Explanation
Answer : (b)
Q.18
Which one is not a vestigial structure in humans ... .. [ CPMT 1991 ]
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a) Epiglottis
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b) Vermiform appendix
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c) Wisdom teeth
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d) Body hair
Explanation
Answer : (a)
Q.19
Relatedness of two species is tested through .. ... [ Odisha 2009]
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a) RNA and proteins
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b) DNA and proteins
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c) Antibodies and transposons
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d) None of the above
Explanation
Answer : (b)
Q.20
Presence of tail and coarse hair in human baby is ... ... [ AIIMS 2004 ]
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a) Radiation
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b) Atavism
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c) Mutation
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d) Crossing over
Explanation
Answer : (b)
Q.21
The ship in which Darwin travelled was .. .. [ MPPMT 1993 ]
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a) Gangotri
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b) Beagle
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c) Atlantic
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d) Seagull
Explanation
Answer : (b)
Q.22
Examples of homologous structures is /are ... .. [ AMU 2011]
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a) Optic lobes of brain
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b) Heart of vertebrates
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c) Cerebrum of brain
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d) All the above
Explanation
Answer : (d)
Q.23
Which one does not help in understanding evolution ... .. [ JKCMEE 2003]
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a) Genetic variation
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b) Natural selection
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c) Embryogenesis
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d) Isolation
Explanation
Answer : (d)
Q.24
Biogenetic law/ recapitulation theory was proposed by ... .. [ BHU 2012 ]
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a) Wallace
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b) Lamarck
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c) Haeckel
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d) Mendel
Explanation
Answer : (c)
Q.25
Plants and animals of Galapogos islands resemble plants and animals of main land in ... ... [ Odisha 2007]
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a) North Africa
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b) South Africa
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c) North America
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d) South America
Explanation
Answer : (d)
Q.26
Major defect of Darwinism was .. .. [ CPMT 1994 ]
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a) Nondescription of survival of fittnest
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b) Nondescription of inheritance of fittest
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c) Nondescription of overproduction of young ones
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d) Nondescription of reason for variation
Explanation
Answer : (d)
Q.27
Living organism with oldest fossil history is ... .. [ AMU 2000 ]
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a) Dinosaur
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b) Archaeopteryx
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c) Horse
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d) Man
Explanation
Answer : (c)
Q.28
Duck-billed Platypus is connecting link between ... .. [ AFMC 2009 ]
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a) Echinodermata and chordata
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b) Arthropoda and mollusca
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c) Reptilia and mammalia
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d) Reptilia and aves
Explanation
Answer : (c)
Q.29
Approximate age of earth ( in million years) is ... ... [ HPPMT 2001 ]
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a) 3600
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b) 4600
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c) 7200
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d) 6000
Explanation
Answer : (b)
Q.30
Theory of evolution by Charles Darwin is called ... .. [ JKCMEE 2002 ]
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a) Theory of inheritance of acquired characters
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b) Mutation theory
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c) Theory of natural selection
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d) Origin of species
Explanation
Answer : (c)
Q.31
A vestigial organ in man is ... ... [ MPPMT 1998 ]
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a) mammary gland
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b) pelvic girdle
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c) vermiform appendix
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d) sebaceous glands
Explanation
Answer : (c)
Q.32
Haeckel's recapitulation theory/ biogenetic law states .... ... [ BHU 1991 ]
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a) Ontogeny repeats phylogeny
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b) High rate of reproduction
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c) Alternation of generations
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d) Inheritance of acquired characters
Explanation
Answer : (a)
Q.33
Theory of abiogenesis or spontaneous generation was finally disapproved by ... ... [ kerala 2003 ]
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a) Louis Pasteur
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b) A.I.Oparin
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c) A.R.Wallace
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d) Sidney Fox
Explanation
Answer : (a)
Q.34
Which was absent in the atmosphere at the time of origin of life ...... [ AIIMS 1997 ]
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a) NH3
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b) H2
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c) O2
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d) CH4
Explanation
Answer : (c)
Q.35
A bird with teeth is ... ... [ BHU 1991 ]
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a) Kiwi
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b) Ostrich / king Vulture
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c) Dodo
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d) Archaeopteryx
Explanation
Answer : (d)
Q.36
A group of interbreeding individuals reproductively isolated from others is ... .. [ DPMT 2005]
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a) Biological species
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b) Morphospecies
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c) Linneon
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d) Evolutionary species
Explanation
Answer : (a)
Q.37
Dark coloured Peppered Moth is able to survive in industrial areas as compared to light coloured form because of .. .. [ CBSE 2009]
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a) High fecundity
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b) Mimicry
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c) Natural selection in smoky environment
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d) Lethal mutation
Explanation
Answer : (c)
Q.38
Life originated in ... ... [ CPMT 1992 ]
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a) Air
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b) Soil
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c) Mountains
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d) Water
Explanation
Answer : (d)
Q.39
Presence of gill slits in the embryo of all vertebrates supports the theory of ... ... [ JIPMER 2000 ]
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a) Organic evolution
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b) Biogenesis
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c) Metamorphosis
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d) Recaptulation
Explanation
Answer : (d)
Q.40
An evolutionary pattern characterised by a rapid increase in number of kinds of closely related species is called ... .. [ AMU 2010]
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a) Divergent evolution
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b) Convergent evolution
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c) Adaptive radiation
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d) Parallel evolution
Explanation
Answer : (c)
Q.41
According to theory of abiogenesis, life originates from .... ... [ DPMT 2009 ]
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a) Non-living
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b) Spontaneously
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c) Chemicals
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d) Other planets
Explanation
Answer : (a)
Q.42
Two geographical regions separated by high mountains are ... ... [ CBSE 1994 ]
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a) Oriental and Australian
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b) Palaearctic and Oriental
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c) Nearctic and Palaearctic
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d) Neotropical and Ethiopian
Explanation
Answer : (b)
Q.43
In evolution of horse, two most important anatomical and morphological changes brought about are ... .. [ CET Chd 2010]
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a) Limbs and tail
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b) Limbs and teeth
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c) Teeth and tail
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d) Limbs and height
Explanation
Answer : (b)
Q.44
Atmosphere of earth just before the origin of life consisted of ... ... [ AMU 2003 ]
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a) Water vapours, CH4, NH3 and Oxygen
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b) CO2, NH3 and CH4
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c) H2, NH3 and CH4 and water vapour
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d) CH4, O3, O2 and water vapour
Explanation
Answer : (c)
Q.45
That first life on earth originated from non-living materials has been explained by ... ...
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a) theory of biogenesis
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b) theory of abiogenesis
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c) theory of special creation
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d) theory of extra-terrestrial origin
Explanation
Answer : (b)
Q.46
Tendrils are examples of ?
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a) Coevolution
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b) Convergent evolution
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c) Divergent evolution
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d) Something else
Explanation
1)Tendril is a specialized stem, leaf or petiole with a threadlike shape that is used by climbing plants for support It is modified stem , leaf or petiole 2) Some species interact so intimately that they can cause evolutionary changes in each other over time. This is called coevolution. thus Coevolution is out of question. 3) convergent evolution is the process whereby organisms not closely related (not monophyletic), independently evolve similar traits as a result of having to adapt to similar environments or ecological niches Many creepers have developed tendrils although they are genetically different. Thus convergent evolution is correct option. 4) The process by which an interbreeding population or species diverges into two or more descendant species, resulting in different species developing new characteristics to enable them to survive to their new habitats. Homologous organs is example of divergent evolution Thorns of Bougainvillea and tendrils of Cucurbita are both modified stem, leaf or petiole, both are creeper and different species, both have different function , thus thorns and tendrils are homologues Correct option is " Divergent evolution" > Answer : (c)
Q.47
Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of : [AIPMT 2014]
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a) Homologous organs
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b) Convergent evolution
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c) Analogous organs
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d) Adaptive radiation
Explanation
Answer:(a)
Q.48
Which one of the following are analogous structures? …[AIPMT 2014]
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a) Thorns of Bougainvillea and Tendrils of Cucurbita
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b) Flippers of Dolphin and Legs of Horse.
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c) Wings of Bat and Wings of Pigeon.
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d) Gills of Prawn and Lungs of Man.
Explanation
Answer:(c)
Q.49
Which of the following had the smallest brain capacity? …[AIPMT 2015]
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a) Homo habilis
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b) Homo erectus
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c) Homo sapiens
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d) Homo neanderthalensis
Explanation
Answer:(a)
Q.50
Which of the following characteristics is mainly responsible for diversification of insects on land? …[AIPMT 2015]
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a) Eyes
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b) Segmentation
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c) Bilateral symmetry
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d) Exoskeleton
Explanation
Answer:(d)
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