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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1051. |
Which one of the following is not a living fossil?A. PeripatusB. King crabC. ArcaheopteryxD. Sphenodon |
| Answer» Correct Answer - C | |
| 1052. |
Differentiate between aneuploidy and polyploidy |
| Answer» Addition or deletion of 1 or 2 chromosomes is aneuploidy (2n+1, 2n-2) . Addition of 1 or more complete sets of chromosomes is polyploidy (3n,4n) | |
| 1053. |
Which of the following represents correct order of evolution?A. Amoeba `rarr` Leucosolenia `rarr` AscarisB. Leucosolenia `rarr` Hydra `rarr` Amoeba `rarr` AscarisC. Ascaris `rarr` Amoeba `rarr` Leucosolenia `rarr` HydraD. none of these |
| Answer» Correct Answer - A | |
| 1054. |
Presence of gills in the tadpole of from indicates thatA. fishes were amphibious in the pastB. fishes evolved from frog like ancestorsC. frogs will have gills in futureD. frogs evolved from gilled ancestors. |
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Answer» Correct Answer - D The tadpole larva of frog grills and lives in water. This proves that frogs have evolved from grilled ancestors. |
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| 1055. |
Which of the following statement is correct?A. Amphibians evolved into reptiles.B. Fish with stout and strong fins could move on land and go back to water. This was about 350 mya.C. Giant terms were present but they all fell to form coal deposits slowly.D. all of these |
| Answer» Correct Answer - D | |
| 1056. |
The character that proves that frogs have evolved from fishes isA. their ability to swim in waterB. tadpole larva in frogsC. similarity in the shape of the headD. their feeding on aquatic plants. |
| Answer» Correct Answer - B | |
| 1057. |
Cranial capacity of modern man isA. `350-400 cm^(3)`B. `500-1000 cm^(3)`C. `915-1700 cm^(3)`D. `1350-1500 cm^(3)` |
| Answer» Correct Answer - D | |
| 1058. |
Highest cranial capacity is/was present in:A. Peking ManB. Java ManC. Modern ManD. Handy Man |
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Answer» Correct Answer - C Highest cranial capacity has been found in Modern Man. |
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| 1059. |
Tendrils of Cucurbita and thorns of Bougainvillea areA. Homologous organsB. Analogous organsC. Vestigeal organsD. Atavistic divergence |
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Answer» Correct Answer - A Tendrils of Cucurbita and thorns of Bougainvillea are homologous organs. |
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| 1060. |
Tendrils in plants are an example ofA. Adaptive radiationB. CoevolutionC. Convergent evolutionD. Divergent evolution |
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Answer» Correct Answer - C Tendrils in plants are an example of convergent evolution. |
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| 1061. |
The most apparent change during the evolutionary history of Homo-sapients is traced inA. Shortening of jawsB. Remarkable increase in brain sizeC. Loss of body hairD. Walking upright |
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Answer» Correct Answer - B The most apparent change during the evolutionary history of Homo sapiens is traced in remarkable increase in brain size. |
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| 1062. |
The most apparent change during the evolutionary history of Homo-sapients is traced inA. shorting of the jawsB. remarkable increase in the brain sizeC. loss of body hairD. walking upright |
| Answer» Correct Answer - B | |
| 1063. |
What is common of Whale, Seal and Shark?A. HomoiothermyB. Seasonal migrationC. Thick subcutaneous fatD. Convergent evolution |
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Answer» Correct Answer - D Whale, Seal and Shark shows convergent evolutin |
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| 1064. |
Select the correct statement from the following ?A. Fitness is the end result of the ability to adapt and gets selected by natureB. All mammals except whales and camels have seven cervical vertebraeC. Mutations are random and directionalD. Darwinian variations are small and directionless |
| Answer» Correct Answer - A | |
| 1065. |
What is common of Whale, Seal and Shark?A. thick subcutaneous fatB. convergent evolutionC. homoiothermyD. seasonal migration |
| Answer» Correct Answer - B | |
| 1066. |
Fossils are generally found inA. Sedimentary rocksB. Igneous rocksC. Metamorphic rocksD. Any type of rock |
| Answer» Correct Answer - A | |
| 1067. |
Atavism refers to (a) Inheritance of triat by mother (b) Inheritance of triat by father (c) Criss-cross inheritance(d) Inheritance of characters not shown by parents |
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Answer» (d) Inheritance of characters not shown by parents |
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| 1068. |
Cite one example of homologous organs in plants |
| Answer» Thorns of Bougainvillea and tendrils of Passiflora | |
| 1069. |
Mammal in human male is (a) Atavistic organ(b) Rudimentary Organ (c) Vestigial organ (d) Homologous structure |
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Answer» (c) Vestigial organ |
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| 1070. |
What are homologous organs ? Cite one example |
| Answer» The organs of different species of common descent which look different and perform different functions, but have similar basic structure, similar topographic relationship, and similar embryonic origin are called homologous organs | |
| 1071. |
What is atavism ? |
| Answer» Atavism is the reappearance of a certain ancestral, not parental, structure which has either completely disappeared or greatly reduced | |
| 1072. |
Cite two examples of anaogous organs and two of atavistic structures |
| Answer» Insect wings and bird wing, leaves of plants and cladodes of Ruscus are analogous organs, tail in human body and additional mammae in some persons are atavistic structures | |
| 1073. |
A baby has been born with a small tail. It is case exhibiting `:`A. RadiationB. AtavismC. MutationD. Crossing over |
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Answer» Correct Answer - B • Appearance of ansectral characters is called atavism or reversion. E.g., Tail in human child or long canine. • Presence of tail and coarse hair in human baby is atavism. |
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| 1074. |
A baby has been born with a small tail. It is a case exhibitingA. restrogressive evolutionB. mutationC. AtavismD. metamorphosis |
| Answer» Correct Answer - C | |
| 1075. |
A baby has been born with a small tail. It is case exhibiting `:`A. retogressive evolutionB. mutationC. atavismD. metamophosis |
| Answer» Correct Answer - C | |
| 1076. |
A living connective link which provides evidence for organic evolutionA. Sphenodon between reptile and birdB. lung fishes between pisces and reptileC. Archaeopteryx between reptile and birdD. duck-billed platypus between reptiles and mammals |
| Answer» Correct Answer - D | |
| 1077. |
A living connective link which provides evidence for organic evolutionA. Archaeopteryx between reptiles and mammalsB. Lung fish between pisces and reptilesC. Duck bill platypus between reptiles and mammalsD. Sphenodon between reptiles and birds |
| Answer» Correct Answer - C | |
| 1078. |
Which one of the following pairs of items correctly belongs to the category of organs mentioned against itA. Wings of honey-bee and wings of crow-Homologous organsB. Thorn of Bougainvilea and tendrils of Cucumbita Analogous organsC. Nictitating membrane and blind spot in human eye -Vestigial organsD. Nephridia of eathworm and malpighian tubules of cockroach -Excretory organs. |
| Answer» Correct Answer - D | |
| 1079. |
Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms, includesA. Study of the conditions of fossilizationB. electron spin resonance (ESR) and fossil DNAC. study of carbohydrates / proteins in rocksD. study of carbohydrates / proteins in fossils. |
| Answer» Correct Answer - B | |
| 1080. |
Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms, includesA. study of carbohydrates/proteins in fossilsB. study of the conditions of fossilisationC. Electron Spin Resonance (ESR) and fossil DNAD. study of carbohydrates/proteins in rocks |
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Answer» Correct Answer - C Electron Spin Resonance (ESR) measures number of charges occupying deep traps m crystal band gap. The basic principle of ESR is same as those for luminescence, i.e. electrons become trapped and stored as a result of ionising radiations e.g. dating of tooth enamel |
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| 1081. |
Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms, includesA. Electron spin resonance (ESR) and fossil DNAB. Study of carbohydrates/proteins in rocksC. Study of carbohydrates/proteins in fossilsD. Study of conditions of fossilization |
| Answer» Correct Answer - A | |
| 1082. |
A bacterial culture is treated with streptomycin and a cast is made . A few columns are able to survive due toA. SelectionB. AdaptationC. Induced mutationD. Mimicry |
| Answer» Correct Answer - B | |
| 1083. |
Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms, includesA. Study of carbohydrates proteins in fossilsB. Study of the condiitions of fossilization.C. Electron spin resonance and fossilD. Study of carbohydrates / proteins in rocks. |
| Answer» Correct Answer - C | |
| 1084. |
Presence of gills in the tadpole of frog indicates that `:`A. Fishes were amphibious in the pastB. Fishes evolved from frog like ancestorsC. Frogs will have gills in future.D. Frogs evolved from gilled ancestors. |
| Answer» Correct Answer - D | |
| 1085. |
Using imprints from a plate with complete medmm and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originate as adaptation. These imprints need to be usedA. On plates with and without streptomycinB. On plates with minimal mediumC. Only on plates with streptomycinD. Only on plates without streptomycin. |
| Answer» Correct Answer - A | |
| 1086. |
According to Oparin, which one of the following was not present in the primitive atmospehre of the earth?A. OxygenB. HydrogenC. Water VapourD. Methane |
| Answer» Correct Answer - A | |
| 1087. |
According to Oparin, which one of the following was not present in the primitive atmospehre of the earth?A. MethaneB. OxygenC. HydrogenD. Water vapour |
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Answer» Correct Answer - B According to Oparin the atmosphere of primitive earth was reducing because H atoms were most numerous end most reactive. Large quantitis of `H_(2),N_(2)`water vapour `CO_(2),CH_(4)`and `NH_(3)` were present, but free oxygen was not present in significant amount. |
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| 1088. |
The prebiotic atmosphere of the earth was of a reducing nature. It was transformed into a oxidising atmospehre of present day due to the emergence ofA. cyanobacteriaB. angiospermsC. photosynthetic protistsD. eukaryotic algae. |
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Answer» Correct Answer - A The prebiotic atmosphere of the earth was of a reducing nature, i.e., no free oxygen was available. It was transformed into an oxidising atmosphere due to the emergence of cyanobacteria. They used water to get hydrogen and released oxygen into the atmosphere. |
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| 1089. |
The idea of 'survival of the fittest' was given byA. DarwinB. Herbert SpencerC. MalthusD. Lyell |
| Answer» Correct Answer - B | |
| 1090. |
Assertion:Man mainly differs from the primates in his large brain and high intelligence . Reason:Lumbar curve is lacking in humans but present in apes .A. If both Assertion and Reason are true and Reason is the correct explanation of AssertionB. If both Assertion and Reason are true and Reason is not the correct explanation of AssertionC. If Assertion is true but Reason is false.D. If both Assertion and Reason are false |
| Answer» Correct Answer - C | |
| 1091. |
What advantages man got over other primates by having erect posture and large brain |
| Answer» Erect posture increased height which provided greater range of vision for life in open savannath. Large brain increased intelligence and provided proper coordination of movements . | |
| 1092. |
Arrange them in chronological order.Homo sapiens, Dryopithecus, Australopithecus Homo habilis Homo erectus |
Answer»
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| 1093. |
Which type of selection is industrial melansim observed in month, Biston betularia?A. StabilisingB. DirectionalC. Disruptive selectionD. Artificial |
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Answer» Correct Answer - B In directional selection, the population changes towards one particualr direction. It means this type of selection favours small or large sized indiviudals and more individuals of that type will be present in next generation. The mean size of the population changes. Examples are evolution of DDT resistant mosquitoes, industrial melansim in peppered moth and evolution of giraffle. |
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| 1094. |
For the MN-blood group system. The frequencies of M and N alleles are 0.7 and 0.3, respectively. The expected frequency of MN-blood group bearing organisms is likely to beA. 0.42B. 0.49C. 0.09D. 0.58 |
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Answer» Correct Answer - A According to Hardy-Weinberg principle, the expected frequency of MN-blood group bearing organism is likely to be `p^(2)+2pq+q^(2)=1` `0.43+0.09+2x=1` 2x=1-0.58 =42% |
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| 1095. |
For the MN-blood group system, the frequencies of M and N alleles are 0.7 m and 0.3, respectively . The expected frequency of MN-blood group bearing organisms in likely to beA. `42%`B. `49%`C. `9%`D. `58%` |
| Answer» Correct Answer - A | |
| 1096. |
The most accepted line of descent in human evolution is:a. Australopithecus → Ramapithecus → Homo sapiens → homo habilisb. Homo erectus → Homo habilis → Homo sapiensc. Ramapithecus → Homo habilis → Homo erectus → Homo sapiensd. Australopithecus → Ramapithecus → Homo erectus → Homo habilis → Homo sapiens. |
| Answer» c. Ramapithecus → Homo habilis → Homo erectus → Homo sapiens | |
| 1097. |
Which type of selection explains industrial melanism observed in moth, Biston bitulariaA. StabilisingB. DirectionalC. DisruptiveD. Artificial |
| Answer» Correct Answer - B | |
| 1098. |
Which type of selection is industrial melanism observed in moth, Biston bitularia:a. Stabilisingb. Directionalc. Disruptived. Artificial |
| Answer» b. Directional is correct. | |
| 1099. |
Industrial melanism as observed in peppered moth proves thatA. Melanism is a pollution-generated featureB. The true black melanic forms arise by a recurring random mutationC. The melanic form of the moth has no selective advantage over lighter form in industrial areaD. The lighter form moth has no selective advantage either in polluted industrial area or non-polluted area. |
| Answer» Correct Answer - B | |
| 1100. |
Industrial melanism as observed in peppered moth proves thatA. the melanic form of the moth has no selective advantage over lighter form in industrial area.B. the higher form moth has no selective advantage either in polluted industrial area or non-polluted area.C. melanism is a pollution- generated feature.D. the true black melanic form arise by recurring random random mutation. |
| Answer» Correct Answer - D | |