CBSE Questions for Class 12 Medical Biology Evolution Quiz 8 - MCQExams.com

Which one is age of fish?
  • Devonian
  • Silurian
  • Permian
  • Cretaceous
Age of dinosaurs is
  • Permian
  • Jurassic
  • Triassic
  • Cretaceous
Golden Age of Fishes is ______________.
  • Carboniferous
  • Devonian
  • Mesozoic
  • Coenozoic
Age of mammals and birds is 
  • Mesozoic
  • Coenozoic
  • Archaeozoic
  • Palaeozoic
Evolutionary convergence is development of 
  • Common set of characters in groups of different ancestry
  • Dissimilar characters in closely related
  • Common set of characters in closely related groups
  • Random mating
First evidence of ceremonial burial of dead body and belief on religion have been found with fossil of 
  • Homo habilis
  • Homo erectus
  • Neanderthal
  • Cro-magnon
In population X proportion of gene M is 60% and gene m is 40% then which of the following options is correct for the heterozygous genotype in the off spring (According to Hardy-Weinberg Law)?
  • 48%
  • 36%
  • 16%
  • 20%
Age of man in geology is
  • Proterozoic
  • Mesozoic
  • Coenozoic
  • Psychozoic
Dinosaurs were dominant during 
  • Devonian
  • Pleistocene
  • Permian
  • Jurassic
Ancestral amphibians were tetrapoda that evolved during 
  • Carboniferous period
  • Cretaceous period
  • Jurassic period
  • Devonian period
Development of similar habits in pouched and placental mammals found in similar habitats is called 
  • Divergent evolution
  • Convergent evolution
  • Adaptive radiation
  • Macroevolution
Adaptive similarities in animals of the same habitat constitute 
  • Adaptive radiation
  • Parallel evolution
  • Convergent evolution
  • Divergent evolution
That reducing environment occurred on early earth is proved by the occurrence of :
  • Metal carbides and nitrides
  • Metal oxides
  • Uranite and pyrite
  • All the above
Possibility of life on other planets is indicated by reported occurrence of :
  • Organic substances
  • Methane
  • Water
  • Both B and C
By shaking protein and carbohydrate mixture in water Oparin obtained :
  • Coacervates
  • Microspheres
  • Vesicles
  • Both A and B
Theory of a abiogenesis is :
  • Theory of spontaneous creation
  • Theory of special creation
  • Cosmozoic theory
  • Theory of panspermia
Primordial soup is the name of :
  • Rainy season ponds
  • Hot solute rich early sea
  • Hot molten surface of early earth
  • Lava rich part of early earth
What happened to $$NH_3$$ present in primary atmosphere during its conversion to secondary atmosphere ?
  • Its concentration decreased due to excessive formation of oxygen.
  • Most of it got oxidised to nitrogen oxides.
  • Got oxidised to $$N_2$$ and water.
  • Was absorbed by photoautotrophs.
Convergent evolution is illustrated by 
  • Rat and Dog
  • Bacterium and Protozoan
  • Starfish and Cuttle fish
  • Dogfish and Whale
Archaeopteryx, toothed fossil bird occurred during 
  • Jurassic
  • Triassic
  • Cretaceous
  • Permian
The term protobiogenesis has been introduced by :
  • Oparin
  • Fox
  • Haldane
  • Richter
Dinosaurs were dominant during
  • Jurassic period
  • Cretaceous period
  • Triassic period
  • Palaeocene period
Organic compounds that first evolved on earth and required for the origin of life were:
  • Urea and amino acids
  • Proteins and nucleic acids
  • Proteins and amino acids
  • Urea and nucleic acid
Experimental proof that some simple molecules like $$H_2 , NH_3 , CH_4 $$ and $$H_2 O $$ gave provided by :
  • Lamarck
  • Darwin
  • Stanley
  • Harold Urey
Life originated in  :
  • Air
  • Soil
  • Mountains
  • Water
The early stage human embryo distinctly possesses 
  • Gills
  • Gill slits
  • External ear (pinna)
  • Eye brows
Dinosaurs were present during the 
  • Palaeozoic era
  • Coenozoic era
  • Mesozoic era
  • Precambrian
The classical example of adaptive radiation during formation of new species is
  • Marsupials of Australia
  • Darwin's finches
  • Giant tortoise
  • All of the above
Microspheres were developed artificially by :
  • Oparin
  • Fox
  • Bahadur
  • Daemer
Oparin's theory is based on :
  • Artificial synthesis
  • Spontaneous generation
  • God's creation
  • Panspermia
Mammals like Whale, Dolphin. Bat. Monkey and Horse have some common characters but also show conspicuous differences. This is due to phenomenon of 
  • Divergence
  • Convergence
  • Genetic drift
  • Normalisation
First photosynthetic organisms to appear on earth were:
  • Bacteria
  • Green algae
  • Cyanobacteria
  • Bryophytes
Which experiment suggests that simplest living organism could not have originated spotaneously from non-living matter?
  • Microbes did not appear in stored meat.
  • Microbes appeared in decaying organic matter.
  • Larvae could appear in decaying organic matter.
  • Meat was not spoiled when heated and kept in sealed vessel.
Who gave the theory which is known as primary abiogenesis?
  • Oparin
  • Haldane
  • Miller
  • Urey
Which of the following has been basic to origin of life ?
  • Carbohydates
  • Proteins
  • Nucleic acid
  • Nucleoproteins
Which is the correct sequence of events in the origin of life :
I. Formation of protobionts
II. Synthesis of organic monomers
III. Synthesis of organic polymers
IV. Formation of DNA based genetic systems
  • II, III, IV, I
  • I, III, III, IV
  • I, III, II, IV
  • II, III, I, IV
The term hot dilute soup was given by :
  • Haldane
  • Urey
  • Oparin
  • None of the above
What is correct arrangement of periods of palaeozoic era in ascending order in geological time scale))
  • Cambrian $$\rightarrow $$ Devonian $$\rightarrow $$Ordovician $$\rightarrow $$ Silurian $$\rightarrow $$ Carboniferous $$\rightarrow $$ Permian
  • Cambrian $$\rightarrow $$ Ordovician $$\rightarrow $$Silurian $$\rightarrow $$ Devonian $$\rightarrow $$Carboniferous$$\rightarrow $$ Permian
  • Cambrian $$\rightarrow $$ Ordovician Devonian $$\rightarrow $$ Silurian $$\rightarrow $$ Carboniferous $$\rightarrow $$ Permian
  • Silurian $$\rightarrow $$4 Devonian $$\rightarrow $$Cambrian $$\rightarrow $$ Ordovician Permian $$\rightarrow $$ Carboniferous
Jurassic period of mesozoic era is characterized by 
  • Flowering plants and first dinosaurs appear
  • Gymnosperms are dominant plants and first birds appear
  • Radiation of reptiles and angiosperms appear
  • Dinosaurs become extinct and angiosperms appear
Oparin and Haldane proposed :
  • Theory of natural selection
  • That mutation caused speciation
  • That migration affects genetic equilibrium
  • That the first form of life could have come from prexisting nonliving organic molecules.
  • That evolution of life forms had been driven by use and disuse of organs.
Theory of origin of life was proposed by :
  • Tansley
  • Oparin
  • Darwin
  • Malthus
Most advanced theory of origin of life is that of :
  • Catastrophic
  • Haldane and Oparin
  • Cosmozoic
  • Spontaneous
Which period is largely associated with extinction of dinosaurs, increase in flowering plants and reptiles? 
  • Triassic
  • Jurassic
  • Cretaceous
  • Permian
The first seed plants appeared in 
  • Cretaceous era
  • Carboniferous era
  • Devonian era
  • Silurian era
Closely related species with different traits exhibit
  • Convergent evolution
  • Divergent evolution
  • Parallel evolution
  • None of the above
Major radiation of mammals, birds and pollinating insects took plage in the epoch 
  • Oligocene
  • Palaeocene
  • Pliocene
  • Eocene
  • Miocene
An evolutionary pattern characterised by a rapid increase in number of kinds of closely related species is called 
  • Divergent evolution
  • Convergent evolution
  • Adaptive radiation
  • Parallel evolution
Adaptive radiation is
  • Evolution of different species from a common ancestor
  • Adaptation due to geographical isolation
  • Migration of members of a species to different geographical areas
  • Power of adaptation of an individual to a variety of environments
Parallelism is due to 
  • Adaptive divergence
  • Adaptive convergence
  • Adaptive convergence of unrelated species
  • Adaptive convergence of closely related species
Which one among the following is the latest era?
  • Coenozoic
  • Mesozoic
  • Palaeozoic
  •  Precambrian Era
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