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CBSE
Class 12
Biology
Biology
Evolution

Question Bank

Question Bank: Evolution

This chapter explores the concept of evolution, detailing the origins of life and the diversity of species on Earth. Understanding evolution is crucial for comprehending biological diversity and adaptation over time.

Question Bank - Evolution

View all (132)
Q1.

What theory suggests that life on Earth may have originated from microorganisms from outer space?

Single Answer MCQ
Q-00084346
Q2.

Who provided experimental evidence against the theory of spontaneous generation?

Single Answer MCQ
Q-00084347
Q3.

What process is believed to have preceded the appearance of life on Earth, involving the formation of complex organic compounds?

Single Answer MCQ
Q-00084348
Q4.

What key conditions were present on early Earth that facilitated chemical evolution?

Single Answer MCQ
Q-00084349
Q5.

In what year did S.L. Miller conduct his famous experiment simulating early Earth conditions?

Single Answer MCQ
Q-00084350
Q6.

What molecules are thought to be the first forms of genetic material?

Single Answer MCQ
Q-00084351
Q7.

What does the term 'abiogenesis' refer to in the context of the origins of life?

Single Answer MCQ
Q-00084352
Q8.

Which of the following is NOT a condition proposed by Oparin and Haldane for the origin of life?

Single Answer MCQ
Q-00084353
Q9.

What is the significance of the Miller-Urey experiment?

Single Answer MCQ
Q-00084354
Q10.

Which hypothesis posits that the first life forms were self-replicating molecules?

Single Answer MCQ
Q-00084355
Q11.

What role did the formation of the ozone layer play in the origin of life?

Single Answer MCQ
Q-00084356
Q12.

What type of molecules are hypothesized to have been the building blocks of the first cells?

Single Answer MCQ
Q-00084357
Q13.

What is a primary characteristic of a self-replicating molecule?

Single Answer MCQ
Q-00084358
Q14.

Which element is considered the backbone of life due to its bonding properties?

Single Answer MCQ
Q-00084359
Q15.

What hypothesis suggests that mitochondria and chloroplasts originated from symbiotic bacteria?

Single Answer MCQ
Q-00084360
Q16.

What type of evidence for evolution is primarily provided by fossils?

Single Answer MCQ
Q-00084361
Q17.

Which of the following concepts describes structures in different species that have a similar anatomical structure but different functions?

Single Answer MCQ
Q-00084362
Q18.

What did Ernst Haeckel propose about embryonic development in vertebrates?

Single Answer MCQ
Q-00084363
Q19.

Which mechanism did Darwin propose as the primary driver of evolution?

Single Answer MCQ
Q-00084364
Q20.

How do paleontologists determine the age of fossils?

Single Answer MCQ
Q-00084365
Q21.

Which of the following is an example of vestigial structures in vertebrates?

Single Answer MCQ
Q-00084366
Q22.

Which type of evolution involves species developing similar traits due to similar environments, despite being from different evolutionary backgrounds?

Single Answer MCQ
Q-00084367
Q23.

What kind of anatomical evidence supports the idea of common ancestry among different species?

Single Answer MCQ
Q-00084368
Q24.

Which factor contributes most to genetic variability in a population?

Single Answer MCQ
Q-00084369
Q25.

The study of similar embryos in different vertebrates is intended to support which evolutionary concept?

Single Answer MCQ
Q-00084370
Q26.

Which of the following is true about homologous structures?

Single Answer MCQ
Q-00084371
Q27.

Which concept is illustrated by the different beak shapes of Darwin's finches?

Single Answer MCQ
Q-00084372
Q28.

What is the primary conclusion that can be drawn from the fossil record?

Single Answer MCQ
Q-00084373
Q29.

What does the theory of spontaneous generation propose?

Single Answer MCQ
Q-00084374
Q30.

Which of the following experiments is famously associated with the origin of life?

Single Answer MCQ
Q-00084375
Q31.

What does Charles Darwin’s concept of natural selection emphasize?

Single Answer MCQ
Q-00084376
Q32.

Which statement describes the concept of 'fitness' in evolutionary biology?

Single Answer MCQ
Q-00084377
Q33.

What primarily distinguishes the theory of special creation from evolutionary theory?

Single Answer MCQ
Q-00084378
Q34.

What type of evidence for evolution do fossils provide?

Single Answer MCQ
Q-00084379
Q35.

Which hypothesis suggests that life may have been brought to Earth from outer space?

Single Answer MCQ
Q-00084380
Q36.

What does the term 'chemical evolution' imply?

Single Answer MCQ
Q-00084381
Q37.

Which concept refutes the theory of spontaneous generation?

Single Answer MCQ
Q-00084382
Q38.

Which of the following best describes adaptive radiation?

Single Answer MCQ
Q-00084383
Q39.

Who independently contributed to the theory of natural selection alongside Charles Darwin?

Single Answer MCQ
Q-00084384
Q40.

Which piece of evidence is often used to illustrate the age of Earth and the evolution of life?

Single Answer MCQ
Q-00084385
Q41.

Which of the following best describes the idea of biogenesis?

Single Answer MCQ
Q-00084386
Q42.

Which scientist's experimentation supported the concept that life does not arise from non-living matter?

Single Answer MCQ
Q-00084387
Q43.

What is a primary limitation of the fossil record as evidence for evolution?

Single Answer MCQ
Q-00084388
Q44.

Which mechanism of evolution involves changes in allele frequencies over time due to chance events?

Single Answer MCQ
Q-00084389
Q45.

Which of the following statements about biogeography supports evolution?

Single Answer MCQ
Q-00084390
Q46.

What is the primary mechanism described by Darwin for the process of evolution?

Single Answer MCQ
Q-00084391
Q47.

Which experiment by S.L. Miller supported the idea of chemical evolution?

Single Answer MCQ
Q-00084392
Q48.

What does adaptive radiation refer to in evolutionary biology?

Single Answer MCQ
Q-00084393
Q49.

Which of the following best describes the theory of 'Panspermia'?

Single Answer MCQ
Q-00084394
Q50.

Which of the following factors is NOT a condition of the Hardy-Weinberg equilibrium?

Single Answer MCQ
Q-00084395
Q51.

What is the significance of Lamarck's theory in contrast to Darwin's theory?

Single Answer MCQ
Q-00084396
Q52.

Which process involves the gradual adaptation of a species to its environment over time?

Single Answer MCQ
Q-00084397
Q53.

What type of evolution involves unrelated species developing similar adaptations due to similar environmental pressures?

Single Answer MCQ
Q-00084398
Q54.

What is adaptive radiation?

Single Answer MCQ
Q-00084399
Q55.

Which of the following processes can lead to speciation?

Single Answer MCQ
Q-00084400
Q56.

Which of the following is a classic example of adaptive radiation observed by Charles Darwin?

Single Answer MCQ
Q-00084401
Q57.

Which of the following adaptations is an example of adaptive evolution?

Single Answer MCQ
Q-00084402
Q58.

What drives the process of adaptive radiation?

Single Answer MCQ
Q-00084403
Q59.

How can mutations affect evolution?

Single Answer MCQ
Q-00084404
Q60.

How does adaptive radiation differ from convergent evolution?

Single Answer MCQ
Q-00084405
Q61.

Which event does NOT support the theory of evolution by natural selection?

Single Answer MCQ
Q-00084406
Q62.

Which situation would most likely lead to adaptive radiation occurring?

Single Answer MCQ
Q-00084407
Q63.

In the context of evolution, what is speciation?

Single Answer MCQ
Q-00084408
Q64.

What role do ecological niches play in adaptive radiation?

Single Answer MCQ
Q-00084409
Q65.

What is an example of directional selection?

Single Answer MCQ
Q-00084410
Q66.

Which of the following scenarios best exemplifies adaptive radiation?

Single Answer MCQ
Q-00084411
Q67.

Which of the following statements about evolution is false?

Single Answer MCQ
Q-00084412
Q68.

Which statement about adaptive radiation and speciation is true?

Single Answer MCQ
Q-00084413
Q69.

In which type of environments would you expect to find adaptive radiation occurring?

Single Answer MCQ
Q-00084414
Q70.

What is one consequence of adaptive radiation on biodiversity?

Single Answer MCQ
Q-00084415
Q71.

What distinguishes adaptive radiation from gradualism in evolutionary theory?

Single Answer MCQ
Q-00084416
Q72.

Which of the following best describes the adaptive radiation of Australian marsupials?

Single Answer MCQ
Q-00084417
Q73.

Which situation would least facilitate adaptive radiation?

Single Answer MCQ
Q-00084418
Q74.

What are the implications of adaptive radiation for conservation biology?

Single Answer MCQ
Q-00084419
Q75.

What does the Hardy-Weinberg principle primarily describe?

Single Answer MCQ
Q-00084420
Q76.

In the Hardy-Weinberg equation p² + 2pq + q² = 1, what does p² represent?

Single Answer MCQ
Q-00084421
Q77.

Which condition is NOT necessary for a population to be in Hardy-Weinberg equilibrium?

Single Answer MCQ
Q-00084422
Q78.

If the frequency of allele A (p) is 0.7, what is the frequency of allele a (q)?

Single Answer MCQ
Q-00084423
Q79.

Which factor can lead to a change in allele frequencies, disrupting Hardy-Weinberg equilibrium?

Single Answer MCQ
Q-00084424
Q80.

What is the result of genetic drift in small populations?

Single Answer MCQ
Q-00084425
Q81.

Natural selection can affect Hardy-Weinberg equilibrium by:

Single Answer MCQ
Q-00084426
Q82.

Which of the following describes 'genetic drift'?

Single Answer MCQ
Q-00084427
Q83.

What does the term 'founder effect' refer to?

Single Answer MCQ
Q-00084428
Q84.

In a population where the allele frequencies are not in Hardy-Weinberg equilibrium, what can be inferred?

Single Answer MCQ
Q-00084429
Q85.

Which of the following factors does NOT affect genetic equilibrium in a population?

Single Answer MCQ
Q-00084430
Q86.

In which scenario would you expect alleles to remain stable according to Hardy-Weinberg?

Single Answer MCQ
Q-00084431
Q87.

What role does mutation play in Hardy-Weinberg equilibrium?

Single Answer MCQ
Q-00084432
Q88.

The Hardy-Weinberg equation is based on which assumption?

Single Answer MCQ
Q-00084433
Q89.

Stabilizing selection tends to:

Single Answer MCQ
Q-00084434
Q90.

What is the primary mechanism of evolution proposed by Charles Darwin?

Single Answer MCQ
Q-00084435
Q91.

Which of the following best describes 'fitness' in the context of evolution?

Single Answer MCQ
Q-00084436
Q92.

What is 'genetic drift'?

Single Answer MCQ
Q-00084437
Q93.

Which scientist is known for introducing the concept of mutations as a mechanism of evolution?

Single Answer MCQ
Q-00084438
Q94.

The Hardy-Weinberg principle is used to describe conditions under which evolution does NOT occur. Which of the following is NOT a condition for this principle?

Single Answer MCQ
Q-00084439
Q95.

According to Darwinian evolution, variations that are inherited occur due to which of the following?

Single Answer MCQ
Q-00084440
Q96.

What is meant by 'adaptive radiation'?

Single Answer MCQ
Q-00084441
Q97.

What is the role of mutations in evolution?

Single Answer MCQ
Q-00084442
Q98.

The concept that genetic variations that improve survival and reproduction become more common over generations is known as what?

Single Answer MCQ
Q-00084443
Q99.

What is the main difference between Darwinian evolution and De Vries's concept of evolution?

Single Answer MCQ
Q-00084444
Q100.

In divergent evolution, organisms share a common ancestor but exhibit different adaptations. Which of the following is an example?

Single Answer MCQ
Q-00084445
Q101.

Which of the following statements is TRUE regarding the mechanism of evolution?

Single Answer MCQ
Q-00084446
Q102.

Which of the following is an example of convergent evolution?

Single Answer MCQ
Q-00084447
Q103.

The research conducted by S.L. Miller in 1953 was significant because it provided evidence for which concept?

Single Answer MCQ
Q-00084448
Q104.

Which of the following describes the concept of 'gene flow'?

Single Answer MCQ
Q-00084449
Q105.

What is the primary theory explaining the origin of the universe?

Single Answer MCQ
Q-00084450
Q106.

Who proposed the theory of spontaneous generation, which was later debunked by experimentation?

Single Answer MCQ
Q-00084451
Q107.

What was the main result of Miller's 1953 experiment simulating early Earth conditions?

Single Answer MCQ
Q-00084452
Q108.

Which gas was NOT prevalent in the Earth's early atmosphere according to scientific theories?

Single Answer MCQ
Q-00084453
Q109.

The concept of 'panspermia' suggests that life may have originated from what source?

Single Answer MCQ
Q-00084454
Q110.

During which period did life first appear on Earth according to scientific estimates?

Single Answer MCQ
Q-00084455
Q111.

Which scientist demonstrated that life comes only from pre-existing life using sterilized flasks?

Single Answer MCQ
Q-00084456
Q112.

What term is used to describe the rapid diversification of species from a common ancestor?

Single Answer MCQ
Q-00084457
Q113.

The first self-replicating molecules are thought to be what type?

Single Answer MCQ
Q-00084458
Q114.

Which of the following best explains the theory of chemical evolution?

Single Answer MCQ
Q-00084459
Q115.

What is a common misconception about the origin of life?

Single Answer MCQ
Q-00084460
Q116.

Which factor played a significant role in the formation of the early Earth's oceans?

Single Answer MCQ
Q-00084461
Q117.

The primary gases released during Earth's early formation included which of the following?

Single Answer MCQ
Q-00084462
Q118.

What is the significance of the 'Out of Africa' theory in human evolution?

Single Answer MCQ
Q-00084463
Q119.

Which of the following organisms is considered a direct ancestor of modern humans?

Single Answer MCQ
Q-00084464
Q120.

What characteristic distinguished Australopithecines from other early primates?

Single Answer MCQ
Q-00084465
Q121.

Which hominid is known for having a brain size comparable to modern humans?

Single Answer MCQ
Q-00084466
Q122.

What adaptation significantly aided early hominids in hunting and gathering?

Single Answer MCQ
Q-00084467
Q123.

What evidence supports the theory of the evolution of humans from common ancestors with apes?

Single Answer MCQ
Q-00084468
Q124.

Which of the following statements is true regarding the evolutionary lineage of modern humans?

Single Answer MCQ
Q-00084469
Q125.

What fossil is considered the first known hominid?

Single Answer MCQ
Q-00084470
Q126.

What role did the use of fire play in human evolution?

Single Answer MCQ
Q-00084471
Q127.

Which factor contributed to the success of Homo sapiens in their environment?

Single Answer MCQ
Q-00084472
Q128.

What evidence suggests Neanderthals may have engaged in cultural practices?

Single Answer MCQ
Q-00084473
Q129.

Which species is believed to have used the first stone tools?

Single Answer MCQ
Q-00084474
Q130.

What characterized the Neolithic period in human evolution?

Single Answer MCQ
Q-00084475
Q131.

Which adaptation allowed early humans to migrate into colder regions?

Single Answer MCQ
Q-00084476
Q132.

What is one major consequence of the agricultural revolution on human societies?

Single Answer MCQ
Q-00084477

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