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Quiz 5
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Q.1
Tendrils of Cucurbita and thorns of Bougainvillea are ... .. [ DPMT 2007]
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a) Homologous organs
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b) Analogous organs
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c) Vestigial organs
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d) Atavistic divergence
Explanation
Answer : (a)
Q.2
Which is not vestigial in man? ... ... [ BHU 2008 ]
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a) Tail vertebrae
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b) Nails
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c) Nictitating membrane
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d) Vermiform appendix
Explanation
Answer : (b)
Q.3
The earliest fossil form in the phylogeny of Horse is ... ... [ CBSE 1994 ]
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a) Merychippus
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b) MEsohippus
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c) Eohippus
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d) Equus
Explanation
Answer : (c)
Q.4
The biogenetic law of Haeckel is ... ... [ BHU 2005 ]
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a) Omnis vivum ex vivum
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b) Omnis cellula e cellula
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c) Ontogeny repeats phylogeny
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d) Phylogeny repeats ontogeny
Explanation
Answer : (c)
Q.5
Darwin is associated with ... .. [ HPPMT 1995 ]
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a) Natural selection
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b) Mutation
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c) Inorganic evolution
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d) All the above
Explanation
Answer : (a)
Q.6
Age of evolution of man is measured by ... ... [ CPMT 2001 ]
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a) Electron microscope
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b) Chemical reaction
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c) Radioactive dating
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d) Ultraviolet radiation
Explanation
Answer : (c)
Q.7
An evolutionary pattern characterized by increase in number and kind of closely related species is ... .. [ AMU 2012]
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a) Convergent evolution
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b) Parallel evolution
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c) Adaptive radiation
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d) Divergent evolution
Explanation
Answer : (c)
Q.8
Darwin in his "Natural Selection Theory" did not believe in any role of which one of the following ... .. [ CBSE 2003]
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a) Parasites and predators as natural enemies
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b) Survival of the fittest
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c) Struggle for existence
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d) Discontinuous variations
Explanation
Answer : (d)
Q.9
Species inhabiting the same geographical area are ... .. [ BHU 2012]
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a) Sympatric
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b) Sibling
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c) Taxonomic
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d) Allopatric
Explanation
Sympatric speciation develops reproductive isolation without geographic barrier. Sympatric speciation occurs when populations of a species that share the same habitat become reproductively isolated from each other. For instance, parent plants produce offspring that are polyploid. Hence, the offspring live in the same environment as their parents but are reproductively isolated. Answer : (a)
Q.10
Which is not concept of Lamarckism ... .. [ CPMT 2007]
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a) rate and survival of organisms different due to variations
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b) Environmental pressure produce variations
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c) An organ in constant use will grow in size
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d) Inheritance of acquired characters
Explanation
Answer : (a)
Q.11
In which geological era did microbes originate .. .. [ MPPMT 2012]
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a) Precambrian
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b) Proterozoic
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c) Azoic
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d) Palaeozoic
Explanation
Answer : (b)
Q.12
Interacting populations are ... ... [ AMU 2002 ]
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a) Symbiotic
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b) Mutualistic
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c) Parasitic
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d) Coevolved
Explanation
Answer : (d)
Q.13
Higher frequency of melanic moths and DDT resistance in mosquitoes are examples of ... .. [ KCET 2008]
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a) Point mutation
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b) Genetic drift
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c) Natural selection
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d) Survival of the fittest
Explanation
Answer : (c)
Q.14
Concept of mutations was put forth by .. ... [ CBSE mains 2012]
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a) Charles Darwin who found a wide variety of organisms during sea voyage
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b) Hugo de Vries who worked on Evening Primrose
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c) Gregor Mendel who worked on Pisum sativum
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d) Hardy Weinberg who worked on allele frequencies in population
Explanation
Answer : (b)
Q.15
Ozone layer is important as it ... ... [ CPMT 1996 ]
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a) reduces light reflection
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b) provides oxygen to jet fliers
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c) absorbs extra light rays
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d) filters out ultra-violet radiation
Explanation
Answer : (d)
Q.16
Adaptive similarities in animals of the same habitat constitute ... .. [ Pb PMT 1999]
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a) Adaptive radiation
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b) Parallel evolution
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c) Convergent evolution
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d) Divergent evolution
Explanation
Answer : (c)
Q.17
Which is not given by Darwin? ... .[ AMU 2009]
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a) Variations
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b) Natural selection
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c) Survival of the fittest
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d) Struggle for existence
Explanation
"Survival of the fittest" is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection." Not given by Darwin Answer : (c)
Q.18
Parallelism is due to ... .... [ DPMT 2007]
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a) Adaptive divergence
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b) Adaptive convergence
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c) Adaptive convergence of unrelated species
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d) Adaptive convergence of closely related species
Explanation
Parallel evolution is the similar development of a trait in distinct species that are not closely related, but share a similar original trait in response to similar evolutionary pressure. most appropriate answer is option b Answer : (b)
Q.19
Finches of Galapagos provide evidence for ... ... [ CBSE 2007]
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a) Retrogressive evolution
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b) Special creation
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c) Biogeographical evolution
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d) Evolution due to mutation
Explanation
Answer : (c)
Q.20
A mutation is most likely to have selective advantage if it ... .. [ CPMT 2005]
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a) Affects dominant alleles
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b) Affects recessive alleles
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c) Affects whole chromosome
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d) Environment remains stable
Explanation
Answer : (b)
Q.21
Cyanobacteria originated on earth about ... ... [ HPPMT 2005 ]
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a) 4.3 - 4.8 billion years ago
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b) 3.3 - 3.8 billion years ago
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c) 2.3 - 2.8 billion years ago
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d) 1.3 - 1.8 billion years ago
Explanation
Answer : (b)
Q.22
Which of the following was formed in S.Miller's experiment? [ CPMT 2008]
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a) microspheres
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b) nucleic acids
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c) amino acids
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d) UV radiations
Explanation
Answer : (c)
Q.23
Famous paleontologist/ paleobotanist of India was ... .. [ Bih PMT 1995 ]
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a) P. Maheshwari
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b) S.R. Kashyap
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c) B. Sahni
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d) B.P. Pal
Explanation
Answer : (c)
Q.24
Evolution is experimentally demonstrated by ... .. [ Odisha 2011]
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a) rapid mutation - neo-Lamarckism
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b) Survival of the fittest - Wallace
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c) Replica plating - Lederberg
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d) Ancon sheep - Neo Darwinism
Explanation
Answer : (c)
Q.25
Closely related , morphologically similar, reproductively isolated sympatric populations are designed as ... .. [ CBSE 1995 ]
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a) Clones
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b) Clines
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c) Demes
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d) Sibling species
Explanation
Answer : (d)
Q.26
Origin of life occurred in ... ... [ kerala 2000 ]
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a) Carboniferous
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b) Cambrian
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c) Pre-cambrian
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d) Ordovician
Explanation
Answer : (c)
Q.27
Evolution of different species starting from a point and spreading to other areas is .. .. [ CBSE 2012]
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a) Adaptive radiation
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b) Natural selection
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c) Migration
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d) Divergent evolution
Explanation
Answer : (a)
Q.28
Formation of new species from pre-existing ones is ... .. [ JKCMEE 2002]
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a) Mutation
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b) Speciation
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c) Isolation
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d) Polyploidy
Explanation
Answer : (b)
Q.29
Assertion: Gene flow increases genetic variations Reason: Random introduction of new alleles into recipient population and their removal from donor population affect allele frequency
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a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
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b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
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c) Assertion is true but, Reason is false
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d) Assertion is false but, Reason is true
Explanation
Answer : (b)
Q.30
The animal that explains industrial melanism is ... .. [ KCET 2000 ]
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a) Lizard
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b) Peppered Moth
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c) Monkey
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d) Frog
Explanation
Answer : (b)
Q.31
Most modern breeds of domestic Dog have evolved through ... .. [ CPMT 1992 ]
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a) Sexual selection
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b) Artifical selection
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c) Natural selection
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d) Isolation
Explanation
Answer : (b)
Q.32
Evidences for evolution from fossils belong to the domain of ... ... [ JKCMEE 2002 ]
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a) Biogeography
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b) Embryology
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c) Palaeontology
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d) Anatomy
Explanation
Answer : (c)
Q.33
Study of fossils comes under ... ... [ AIIMS 1996 ]
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a) Organic evolution
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b) Paleogeography
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c) Palaeontology
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d) Herpetology
Explanation
Answer : (c)
Q.34
Industrial melanism is connected with ... .. [ DPMT 2009]
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a) Defense against UV radiations
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b) Skin darkening due to smoke
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c) Protective resemblance to surroundings
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d) Drug resistance
Explanation
Answer : (c)
Q.35
De Vries theory of mutation is ... .. [ EAMCET 1996 ]
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a) Opposed to natural selection theory
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b) Not opposed to natural selection theory
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c) Opposed to germplasm theory
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d) Opposed to Lamarck’s theory
Explanation
Answer : (b)
Q.36
Animals of cold countries have shorter ears/ extremities. This is ... ... [ JIPMER 2000]
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a) Allen's law
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b) Cope's law
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c) Bergmann's law
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d) Dollo's law
Explanation
Answer : (a)
Q.37
A high density elephant population in an area will result in ... .. [ CBSE 2007]
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a) Mutualism
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b) Predation on one another
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c) Interspecific competition
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d) Intraspecific competition
Explanation
Answer : (d)
Q.38
Wings of birds and fore-limbs of horse are ... .. [ Odisha 2008]
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a) Vestigial
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b) Analogous
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c) Homologous
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d) None of the above
Explanation
Answer : (c)
Q.39
Theory of spontaneous creation was supported by ... ... [ AFMC 2000 ]
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a) Van Helmont
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b) Redi
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c) Spallanzani
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d) Pasteur
Explanation
Answer : (a)
Q.40
Occurrence of non-beneficial alleles in heterozygous genotype is ... ..[ AMU 2011]
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a) Genetic load
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b) Genetic drift
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c) Gene flow
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d) Selection
Explanation
Answer : (a)
Q.41
Precious stones, such as gem stones, are product of ... ..[Chd. CET 2012]
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a) Volcanic rock
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b) Sedimentary rock
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c) Metamorphic rocks
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d) Igneous rocks
Explanation
Answer : (d)
Q.42
Darwin's theory is based on ... .. [ CPMT 2003 ]
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a) Segregation
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b) Independent assortment
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c) Quantitative inheritance
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d) Natural selection
Explanation
Answer : (d)
Q.43
Which one provides direct and solid evidence in favour of organic evolution through ages ... ... [ BHU 1994 ]
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a) Atavism
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b) Palaeontology/ fossils
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c) Vestigial organs
0%
d) Galápagos island fauna
Explanation
Answer : (b)
Q.44
S.L. Miller's closed flask contained .... ... [JKCMEE 2008]
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a) CH4
0%
b) NH3 and water vapours
0%
c) H2
0%
d) All the above
Explanation
Answer : (d)
Q.45
Organic compounds first evolved on earth and required for origin of life were ... .. [ CPMT 1996 ]
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a) Urea and amino acids
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b) Proteins and nucleic acids
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c) Proteins and amino acids
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d) Urea and nucleic acid
Explanation
Answer : (b)
Q.46
Evolution of species or group can be studied through .... .. [ CET Chd. 2001 ]
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a) Fossils
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b) Carbon dating
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c) DNA analysis
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d) All the above
Explanation
Answer : (a)
Q.47
Root cells of wheat has 2n = 42 chromosomes. Which is basic chromosome number of wheat ... .. [ WB 2010]
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a) 7
0%
b) 14
0%
c) 21
0%
d) 42
Explanation
Answer : (a)
Q.48
Closely related species with different traits exhibit ... .. [ Odisha 2008]
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a) Convergent evolution
0%
b) Divergent evolution
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c) Parallel evolution
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d) None of the above
Explanation
Answer : (b)
Q.49
Jurassic period of mesozoic era is characterised by ... ... [ CBSE 2006]
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a) Flowering plants and first dinosaurs appear
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b) Gymnosperms are dominant pants and first birds appear
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c) Radiation of reptiles and angiosperms appear
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d) Dinosaurs become extinct and angiosperms appear
Explanation
Answer : (b)
Q.50
Which one is not an artificial selection? ... .. [ kerala 2009]
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a) Shetland pony
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b) Great dane dog
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c) Arabian race horse
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d) Peppered moth
Explanation
Answer : (d)
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