InterviewSolution
Saved Bookmarks
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.
| 801. |
Which type of respiration probably arose first?A. aerobic as it releases more energyB. anaerobic as it releases more energyC. aerobic as it is more complexD. anaerobic as early atmosphere contained little or no oxygen |
| Answer» Correct Answer - D | |
| 802. |
What is abiogenesis? |
|
Answer» It is the process of the appearance of first form of life slowly from non living molecules. |
|
| 803. |
Why are analogous structures a result of convergent evolution? |
|
Answer» Analogous structures are not anatomically similar, i.e., they do not have common ancestors and evolve for similar function in the same habitat. Therefore, they are said to be a result of convergent evolution. |
|
| 804. |
Which of the type of respiration probably arose first?A. Aerobic as it releases more energyB. Anaerobic as it releases more energyC. Aerobic as it is more complexD. Anaerobic as early almosphere contained no free from of oxygen |
| Answer» Correct Answer - D | |
| 805. |
What are fossils? |
|
Answer» Fossils are the remnants or traces of ancient organism that lived in the past. Or Fossils are the organnic relies of the past which serve as evidences in tracing biological evolution. |
|
| 806. |
Which of the following is not the result of convergent evelution?A. Forelimbs of whales and batsB. Flippers of penguins and dolphinsC. Potato and sweet potatoD. Eye of the Octopus and mammals |
| Answer» Correct Answer - A | |
| 807. |
Recapitulation theory was called the law of Biogenesis ofA. HaeckelB. DarwinC. LamarckD. Hugo de Vries |
| Answer» Correct Answer - A | |
| 808. |
Abiogenetic theory of origin statesA. Spontaneous generationB. Organic evolution due to chemical reactionC. Origin of life due to pre-existing organismsD. Origin of life from blue green algae |
| Answer» Correct Answer - A | |
| 809. |
i. Forelimbs of Cheetah and mammals ii. Flippers of dolphins and penguins iii. Wings of butterflies and birds iv. Forelimbs of whales and mammals |
|
Answer» (i) and (iv) exhibit divergent evolution. There pairs have similar anatomical structure or origin but perform different functions. |
|
| 810. |
What is evolutionA. Development of DNA from nucleotidesB. Development of organism through timeC. Development of a cell from chemicalsD. None of these |
| Answer» Correct Answer - B | |
| 811. |
Radiations with successful adaptations in case of insects is a result ofA. Genetic divergenceB. Micro-evolutionC. Macro-evolutionD. Mega-evolution |
| Answer» Correct Answer - C | |
| 812. |
The principle of organic evolution envisagesA. No change in complexityB. Decreasing complexityC. Increasing complexityD. Drastic changes |
| Answer» Correct Answer - C | |
| 813. |
Which is basis of evolutionA. CellB. IndividualC. PopulationD. Species |
| Answer» Correct Answer - D | |
| 814. |
The importance of random accumulation of small genetic changes sufficient to explain evolutionA. HaeckelB. MayrC. DarwinD. Lamarck |
| Answer» Correct Answer - B | |
| 815. |
Define recapitulation theory in 3 words. |
| Answer» Correct Answer - Ontogeny repeats phylogeny | |
| 816. |
The example of recapitulation theory isA. Embryonic membranes of reptilesB. Tadpole larva of frogC. Placenta of mammalsD. Canine teeth of dog |
| Answer» Correct Answer - B | |
| 817. |
Given below is a diagrammatic representation of the experimental set-up used by S.L. Miller for his experiment:a. Write the names of different gases contained and the conditions set for the reaction in the flask ‘A’. b. State the type of organic molecule he collected in the water at ‘B’. c. Write the conclusion he arrived at. |
|
Answer» a. The gases obtained are CH4, H2, NH3 and water vapour. The closed flask, electric discharge was created at 800°C. b. Amino acids were collected in the water at ‘B’. c. He arrived at the conclusion that life came from pre-existing non-living organic molecules and that formation of life was preceded by chemical evolution. |
|
| 818. |
"Every cell of the body contributes gemmules to the germ cells and so shares in the transmission of inherited characters" This theory is known asA. Theory of inheritance of acquired characteristicB. Theory of germplasmC. Theory of pangenesisD. Theory of mutations |
|
Answer» Correct Answer - C "Every cell of the body contributes gemmules to the germ cells and so shares in the transmission of inherited charatcers" This theory is known as theory of pangenesis (given by Charles Darwin in 1868). |
|
| 819. |
Assertion:Acquired characters are noninheritable Reason:Acquired characters generally affect the somatic cells and it is the germ cells that are passed on to the next generationA. 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 - A | |
| 820. |
A bird with teeth isA. KiwiB. Ostrich/King vultureC. DodoD. Archaeopteryx |
|
Answer» Correct Answer - D A bird with teeth was Archaeopteryx. |
|
| 821. |
Correct order isA. Palaozoic...........Archeozoic........CoenozoicB. Archaeozoic........Palaeozoic...........ProterozoicC. Palaeozoic............Mesozoic..........CoenozoicD. Mesozoic.........Archaezoic..........proterozoic |
|
Answer» Correct Answer - C Geological time scale of earth is divided into 6 era : 1. Azoic - Era of no life 2. Archaezoic - Era of invisible life 3. Proterozoic - Invertebrates and microbes or iginate 4. Palaeozoic - Vertebrates appear 5. Mesozoic - Age of reptiles 6. Coenozoic - Age of mammals and birds Archaeozoic and proterozoic are together called precambrian. |
|
| 822. |
Which era is dubbed as the age of prokaryotic microbesA. PhanerozoicB. ProterozoicC. PrecambrianD. Archean |
| Answer» Correct Answer - C | |
| 823. |
Which of the following features is closely realted with the evolution of humans?A. Loss of tailB. Shortening of jawsC. Binocular visionD. Flat nails |
|
Answer» Correct Answer - B Evolution of modern man is accompaied by the reduction in length of jaw bones and teeth lines becoming semi-circular instead of U-shaped. |
|
| 824. |
Who is directly related to manA. GorillaB. RhesusC. GibbonD. Orangutan |
| Answer» Correct Answer - A | |
| 825. |
What was sealed in the spark chamber in famous Miller and Urey simulation experiment ? |
| Answer» Mixture of methane `(CH_4)`, Ammonia `(NH_3)`, Hydrogen `(H_2)` gas and water `(H_2O)` vapours | |
| 826. |
Dianosaurs dominated the world in which of the following geological era?A. DevonionB. CoenozoicC. Jurassic periodD. Mesozoic. |
| Answer» Correct Answer - D | |
| 827. |
Genetic driftA. Is random change in gene frequencyB. Has nothing in common with inbreedingC. Is appearance of recessive genesD. Produces greatest fluctuation in large populations |
| Answer» Correct Answer - A | |
| 828. |
Which is not a concept of Lamarckism?A. Rate and survival of orgenisms are different due to variationsB. Environmental pressure produces variationsC. An organ in constant use will grow in sizeD. Inheritance of acquired characters |
| Answer» Correct Answer - A | |
| 829. |
Which of the following are necessary for evolution by natural selection to take place? (i) Offspring resemble their parents more than other individuals in the population. (ii) Differences among individuals exist and lead to different numbers of successful offspring being produced. (iii) Individuals adjust their development depending on the enviorment (iv) Every individual possess enormous fertillity.A. i and iiB. ii and ivC. i,iii and ivD. iii only |
| Answer» Correct Answer - B | |
| 830. |
The theory that living organisms on the earth came from outer space is based on the study ofA. Igneous rocksB. Sedimentary rocksC. MeteoritesD. Moon soil |
| Answer» Correct Answer - C | |
| 831. |
According to cosmozoic theory, life coines on earth from other planets in space in the form ofA. SporesB. SeedsC. GametesD. All of these |
| Answer» Correct Answer - D | |
| 832. |
Cosmozoic theory was proposed byA. OparinB. RichterC. ArrheniusD. Pasteur |
| Answer» Correct Answer - B | |
| 833. |
Animal husbandry and plant breeding programmers are the examples ofA. reverse evolutionB. artificial selectionC. mutationD. natural selection |
| Answer» Correct Answer - b | |
| 834. |
The theory of spontaneous generation stated thatA. life arose from living forms onlyB. life can arise from both living and non- livingC. Life can arise from non-living things onlyD. Life arises spontaneously, neither from living nor from the non-living. |
| Answer» Correct Answer - c | |
| 835. |
The theory of spontaneous generation stated thatA. Life arose from living forms onlyB. Life can arise from both living and non-livingC. Life can arise from non-living things onlyD. Life arises spontaneously, neither from living nor from the non-living |
| Answer» Correct Answer - C | |
| 836. |
Animal husbandry and plant breeding programmes are the examples ofA. Reverse evolutionB. Artificial selectionC. MutationD. Natural selection |
| Answer» Correct Answer - B | |
| 837. |
The theory of spontaneous generation stated thatA. life arose from living forms onlyB. life cn arise from both living and non-livingC. life can arise from non-living things onlyD. life arises spontaneously, neither from living nor from the non-living. |
|
Answer» Correct Answer - C The theory of spontaneous generation states that life originated from non-living things in a spontaneous manner. |
|
| 838. |
Explain “founder effect”. |
|
Answer» Sometimes the change in allele frequency is so different in the new sample of population that they become a different species. The original drifted population becomes founder and the effect is called founder effect. |
|
| 839. |
Another term for adaptive evolution isA. Clinal changeB. MicroevolutionC. Macro-evolutionD. Speciation |
| Answer» Correct Answer - B | |
| 840. |
Which is incorrect about protobionts in abiogenic origin of life?A. They were partially isolated from surroundingsB. They could maintain an internal environmentC. They were able to reproduceD. They could separate combination of molecules from the surroundings |
| Answer» Correct Answer - C | |
| 841. |
Study of human evolution is calledA. archaeologyB. anthropologyC. pedigree analysisD. chronobiology. |
|
Answer» Correct Answer - B Archaeology is the study of human history through the excavation of sites. Pedigree analysis is the study of an inherited trait in a group of related individuals to determine the pattern of the trait. Chronoiology is the branch of biology concerned with cyclical physiological phenomena. |
|
| 842. |
Study the charactristics of a population represented in the graphs below. Mark the correct graph that represents the type of selection that this population is likely to undergo A. B. C. D. |
|
Answer» Correct Answer - B It is observed that the individuals with larger body size, in the given population, are lesser in prroportion as compared to individuals with smaller or moderate body size. Also. Large bodied individuals have low fitness, when natural slection acts on such a population, it would favour smaller or moderate sized individuals, hence shifting the body size vs. frequency graph to the left. |
|
| 843. |
In order to build a longitudianl dataest, data of adult finches Geospiza fortis living on one of the Galapagos islands were collected. The beak shape data collected between 1971-2001 are shown in the graph. Study the graph and select the correct statement.A. The fluctuating direction in the beak shape is most probable due to change in the enviorment.B. The graph as a whole does not indicate evolutionary change in the beak shape as the time interval is too small and evolution requires thousands of years to occur.C. The graph indicates that the beak shape may lead to convergent evolutin in the finches of Galapagos inslands.D. The change in any phenotypic character requires selection to alter the expression of large number of geries in coordinated fashion. Henc,e it is unlikely that change in the beak shape depicted in the graph is a result of evolution. |
|
Answer» Correct Answer - A The diversity in beak shape is most probable due to changes in environment which lead to natural selection and gene flow among species. The graph does indicate evolutionary change. It has been shown that evolution can occur with surprising speed, as fast as those resulting from artifical selection. The selection in case of finches was strong and the populations evolved in a matter or generations. The Galapagos finches afford an excellent example of adaptive radiation. It is assumed taht a stock of ancestral finches reached the islands from the mainland and then in the absence of much competition, evolved to fill many of the empty ecological niches. There a change in a phenotypic character can be attributed to alteration in the expression of one to several genes. Thus the change in beak shape can be atributed to evolution. |
|
| 844. |
The following summaries describe some published research resutls. Research 1. Wu and Li (1985): The comparative analysis of homologous genes between human and mouse genomens suggests that the evolutionary rate of homologous genes was higher in the mouse lineage than in the human lineage. Research 2. Smith and Donohe (2008) : The plant families Caprifoliacease, Asclepiadeceae and Lamiaceae are compsed of both herbaceous and arborescent speciers. The comparative analysis of homologous genes between the herbaceous and arborescent species within a single plant family suggests that the evolutionary rate of homologous genes in herbaceous lineages were faster than of arborescent lineages in all three plant familes. Research 3. Gilman et al. (2009): The comparative analysis of 130 homologous mitochondrial genes between a sister species pari of vertebrates from the temperate region and from the tropical region indicate that the base substituion rates of homologous genes from the tropical region are 1.7 times faster than that of the temperate region. Based on these studies which of the following statements best describes the common evolutionary processes in plant and animal genes?A. The evolutionary rates of genes are accelerated in shot-lived animals and plants.B. The evolutionary rates of genes are accelerated in higher animals and plants.C. The evolutionary rates of genes are accelerated in animals and plants which lived in higher temperature regions.D. Direct comparisons of homologous genes between animals and plants show that the plants evolve faster than animals. |
|
Answer» Correct Answer - A Shor-lived species with quick generation replacement usually evolve at a faster rate than do large, long-lived species. This is because new genetic variations. Normally appear in each generatin as a consequency of mutations in sex cells. Those variations may be selected for or against depending on the environment at the time. As a consequence, quicker reproductive cycles generally result in speeded up sepcies divergence. Speciation is genrally a functionof time, unlike temperate regions which were subjected to frequent glaciations in the past, tropical latitudes have remained relatively undisturbed for millions of years and thus, have a long evolutionary time for species diversification. |
|
| 845. |
Tachyglossus is a connecting link betweenA. Reptiles and mammalsB. Reptiles and birdsC. Amphibians and reptilesD. Birds and mammals |
| Answer» Correct Answer - A | |
| 846. |
The finch species of Galapagos island are grouped according to their food sources. Which of the following is not a finch foodA. SeedsB. CarrionC. InsectsD. Tree buds. |
| Answer» Correct Answer - B | |
| 847. |
Which period was called “Age of fishes”? (a) Permian (b) Triassic (c) Devonian (d) Ordovician |
|
Answer» (c) Devonian |
|
| 848. |
Modem man belongs to which period? (a) Quaternary (b) Cretaceous (c) Silurian (d) Cambrian |
|
Answer» (a) Quaternary |
|
| 849. |
The same structure developed along different directions due to adaptions to different needs |
| Answer» Correct Answer - Homologous structure | |
| 850. |
Analogous structure are a result of |
| Answer» Correct Answer - Convergent evolution | |