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.
| 251. |
Forelmbs of cat, lizard used in walking, forelimbs of whale used in swimming and forelimbs of bats used in flying are an example ofA. Analogous organsB. adaptive radiationC. Homologous organsD. convergent evolution |
| Answer» Correct Answer - C | |
| 252. |
Mesozoic era is the age of `:`A. birdsB. fishes were amphibious in the pastC. reptiles gas rise to birds during Jurassic periodD. mammals |
| Answer» Correct Answer - C | |
| 253. |
Which of the following deals with the ancient Indian thought on evolution ?A. Manu SamhitaB. Susruta SamhitaC. Charaka SamhitaD. Taittiriya Upanishad |
| Answer» Correct Answer - a | |
| 254. |
Fossil are studied forA. tracing evolutionary history of organismsB. studying extinct organismsC. providing jobs to scientistD. both (a) and (b) |
| Answer» Correct Answer - d | |
| 255. |
The cause of the extinction of Mesozoic reptiles were `:`A. loss of tropical and subtropical vegetationB. decline of herbiborous stockC. climatic changesD. all of the above |
| Answer» Correct Answer - D | |
| 256. |
Birbal Sahni Institute of Palaeobotany is situated in `:`A. KolkataB. KanpurC. New DelhiD. Lucknow |
| Answer» Correct Answer - d | |
| 257. |
Study of palaeontology is associated with `:`A. fossils evidencesB. birds and mammalsC. primatesD. bones |
| Answer» Correct Answer - a | |
| 258. |
Palaeontology is the science that deals with `:`A. extinct lifeB. developing embryoC. evolution of lifeD. pollen development |
| Answer» Correct Answer - A | |
| 259. |
The extreme specialization and extinction of great reptiles occurred in `:`A. permianB. triassicC. jurassicD. cretaceous |
| Answer» Correct Answer - d | |
| 260. |
Eyes of an Octopus and mammals appear quite similar, but these are different in their basic structure and origin, hence they are `:`A. ancestral organsB. analogous organsC. homologous organsD. both homologous and analogous organ |
| Answer» Correct Answer - b | |
| 261. |
Founder of modern palaeontology is `:`A. Th. DobzhanskyB. Julian HuxleyC. Georges CuvierD. Ernst Haeckel |
| Answer» Correct Answer - c | |
| 262. |
In terms of gene frequencies, founder effect result in `:`A. polyploidyB. hybridizationC. large, rapid changesD. mechanical incompatibility |
| Answer» Correct Answer - C | |
| 263. |
Which of the following is a living fossil ?A. NautilusB. CheetahC. TrilobitesD. Archaeopteryx |
| Answer» Correct Answer - a | |
| 264. |
Which is a living fossil ?A. LimulusB. SphenodonC. CoelacanthD. All of these |
|
Answer» Correct Answer - d Latimeria chalumnae is a surviving member of Crossopterygii, the probable ancestor of the first amphibians. |
|
| 265. |
The unit of natural selection is `:`A. familyB. speciesC. individualD. population |
| Answer» Correct Answer - c | |
| 266. |
Which of the following is a living fossil ?A. FrogB. RabbitC. SphenodondD. Heloderma |
| Answer» Correct Answer - C | |
| 267. |
Origin of first mammals occurred `:`A. 200 million years agoB. 1000 million years agoC. over 500 million years agoD. over 1600 milion years ago |
| Answer» Correct Answer - A | |
| 268. |
Survival of fittest is possible due to `:`A. overproductionB. favourable variationsC. environmental changesD. inheritance of acquired characters |
| Answer» Correct Answer - B | |
| 269. |
In natural selection `:`A. new mutations are generated over timeB. the genetic composition of the population changes at random over timeC. all individuals in a population particular are equally likely to contribute offspring to the next generationD. individuals that possess particular heritable characteristics survive and reproduce at a higher rate than other individuals |
| Answer» Correct Answer - D | |
| 270. |
Prototherians have evolved fromA. birdsB. reptilesC. eutheriansD. all of these |
| Answer» Correct Answer - b | |
| 271. |
During the course of evolution the prototherians have evolved from `:`A. birdsB. reptilesC. eutheriansD. amphibians |
| Answer» Correct Answer - B | |
| 272. |
Darwin finches are found in `:`A. TahitiB. TundraC. Galapagos IslandsD. None of these |
| Answer» Correct Answer - c | |
| 273. |
Which of the following would stop evolution by natural selection from occuring ?A. If humans became extinct because of a disease epidemicB. If ozone depletion led to increased ultraviolet radiation which caused the environment drasticallyC. If genetic recombination, sexual reproduction and mutation stopped so that all offspring of all organisms were exact copies of their parentsD. |
| Answer» Correct Answer - d | |
| 274. |
The factors involved in the formation of new species areA. competition and variationB. isolation and competitionC. competition and mutationD. isolation and mutation |
| Answer» Correct Answer - a | |
| 275. |
Prototherians are connecting link between `:`A. amphibian and avesB. reptiles and mammalsC. fishes and amphibiansD. reptiles and amphibians |
| Answer» Correct Answer - b | |
| 276. |
In a population of frogs which would be considered the fittest ?A. The biggest frogB. The stongest which can eat maximumC. The frog that leaves the most descendantsD. The frog having largest number of mutations |
| Answer» Correct Answer - c | |
| 277. |
Gene flow is the transfer of genes `:`A. from sperms to eggsB. from outside to chromosomesC. from females to males of an organismsD. between genetically distinct but inbreeding population |
| Answer» Correct Answer - D | |
| 278. |
Missing like in evolution is `:`A. LimulusB. PeripatusC. PheretimaD. Archaeopteryx |
| Answer» Correct Answer - D | |
| 279. |
Archaeopteryx is a connecting link between `:`A. reptiles and birdsB. fish and amphibianC. birds and mammalsD. amphibians and birds |
|
Answer» Correct Answer - A A Jurassic fossil bird having characters of reptiles. |
|
| 280. |
Which of the following changes in the gene pool results in adaptation to the environment ?A. MutationB. Gene flowC. Natural selectionD. Genetic drift |
| Answer» Correct Answer - c | |
| 281. |
Fossil remains of Archaeopteryx indicates that `:`A. it was a flying reptile from Permian periodB. it was a flying reptile from Triassic periodC. reptiles gas rise to birds during Jurassic periodD. reptiles gave rise to birds during Permian period |
| Answer» Correct Answer - C | |
| 282. |
A potential danger to a population that has been greatly reduced in number is theA. reduced gene flowB. Hardy-Winberg disequlibriumC. tendency towards assortative matingD. loss of genetic variability |
| Answer» Correct Answer - d | |
| 283. |
In which condition the gene ratio remains constant for any species ?A. MutationB. Gene flowC. Sexual selectionD. Random mating |
| Answer» Correct Answer - D | |
| 284. |
Initiating force of evolution is `:`A. variationB. adaptationC. competitionD. Natural selection |
| Answer» Correct Answer - A | |
| 285. |
The modern synthetic theory of evolution is based on `:`A. genetic and chromosomal mutationB. genetic recombination and natural selectionC. reproductive isolationD. all of the above |
| Answer» Correct Answer - d | |
| 286. |
Discovery of which of the following in 1980 predicted the existence of RNA world during early stage in evolution ?A. RNA is not found in all cellsB. RNA has enzymatic propertiesC. In some viruses RNA is genetic materialD. m-RNA, t-RNA and r-RNA synthesize proteins |
| Answer» Correct Answer - B | |
| 287. |
Specific diversification represents `:`A. mutationB. megaevolutionC. microevolutionD. macroevolution is greatly influenced by mass extinctions and evolutionary radiations |
| Answer» Correct Answer - C | |
| 288. |
Goldschmidt has classfied evolution into micro, macro, and mega evolution. Which one of the following is referred to as micro-evolutionA. Evoltuion at family levelB. Evolution at variety levelC. Evolution at subspecies levelD. Evolution at species and genus level |
| Answer» Correct Answer - D | |
| 289. |
An important evidence in favour of organic evolution is the occurrence of `:`A. Homologous and analogous organsB. Homologous and vestigial organsC. Analogous and vestigial organsD. homologous organs only |
| Answer» Correct Answer - B | |
| 290. |
The organs of different species that are related to each other through common descent through becomes functionally different are called `:`A. vestigialB. analogousC. homologousD. none of these |
| Answer» Correct Answer - c | |
| 291. |
Structures of various animals which are similar in basic plan and development are referred to as `:`A. analogousB. homologousC. homoplasticD. homozygous |
| Answer» Correct Answer - B | |
| 292. |
Which fo the following is a set of homologous organs ?A. Wings of grasshopper, flippers of whaleB. Wings of birds , front feet of horseC. Wings of housefly, wings of birdsD. None of the above |
| Answer» Correct Answer - b | |
| 293. |
Two organs which are similar in structure and origin, but not necessarily in function are called Or The organs of different species that are related to each other through common descent though becomes functionally different are calledA. apocrineB. analogousC. homologousD. none of these |
| Answer» Correct Answer - C | |
| 294. |
The organs which look different but have the same basic structure and origin are known as `:`A. homologousB. vestigialC. hterologousD. analogous |
| Answer» Correct Answer - A | |
| 295. |
Which is incorrect gt?A. Wings of insects and bats are analogousB. Wings of bats and birds are homologousC. Wings of insects and birds are analogousD. Wings of insects and birds are homologous |
| Answer» Correct Answer - d | |
| 296. |
Organs which have the same fundamental structure but different in functions are called `:`A. vestigial organsB. analogous organsC. homoplastic organsD. homologous organs |
| Answer» Correct Answer - d | |
| 297. |
Homology does not refer to `:`A. divergent evolutionB. common descentC. convergent evolutionD. adaptive radiation |
| Answer» Correct Answer - c | |
| 298. |
Homologous organs are `:`A. similar in origin with similar or dissimilar functionsB. similar in origin which are dissimilar in structuresC. dissimilar in origin and dissimilar in structuresD. dissimilar in origin but similar in functions |
| Answer» Correct Answer - A | |
| 299. |
Which of the following are not homologous ?A. Insect mouthpartsB. Insect legsC. Vertebrate forelimbsD. Bird and insect wings |
|
Answer» Correct Answer - d Wings of birds and insects are analogous organs. |
|
| 300. |
The homologous organs are wings of `:`A. pigeon and batB. butterfly and batC. sparrow and honeybeeD. parrot and hands of man |
| Answer» Correct Answer - D | |