SET 4: Evolution -
Natural Selection, Genetic Drift and Origin of Life
Introduction: This set
covers Charles Darwin's theory of evolution by natural selection, genetic
drift, acquired versus inherited traits, and the origin of life. It emphasizes
how populations change over time through various mechanisms.
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📘 SCIENCE
BIOLOGY | Genetics-D
📝 Questions: 50
⏱️ Timer: 20 min
Q1. Evolution explains:
Q2. Darwin proposed evolution by:
Q3. Survival advantage leads to:
Q4. Changes in non-reproductive tissues:
Q5. Mendel's experiments explained:
Q6. Changes that do not alter DNA of germ cells are:
Q7. Genetic drift is more effective in:
Q8. The increase of blue beetles in population was due to:
Q9. Acquired traits do not contribute to evolution because:
Q10. In the first beetle situation, green colour spread because:
Q11. Natural selection in the first situation was exerted by:
Q12. After returning to England, Darwin:
Q13. A cross between a tall pea plant (TT) and a dwarf pea plant (tt) will produce tall plants in the F1 generation because:
Q14. First organisms were:
Q15. Evolution occurs due to:
Q16. Darwin lived during the period:
Q17. Darwin is also known for studies on:
Q18. J.B.S. Haldane proposed origin of life in the year:
Q19. In the second situation, colour change gave:
Q20. The idea that acquired traits are not inherited disproves:
Q21. In humans, the sex of the child is determined by:
Q22. Darwin could not explain evolution fully because he lacked knowledge of:
Q23. Natural selection always leads to:
Q24. The combined understanding of Mendel and Darwin explains:
Q25. Large populations are less affected by:
Q26. A trait that is expressed in a hybrid even in the presence of the other trait is called:
Q27. Organic molecules necessary for life formed by:
Q28. Haldane suggested life arose from:
Q29. Removal of tail in mice does not affect progeny because:
Q30. Early earth conditions were:
Q31. Origin of life is NOT explained by:
Q32. Since genes control traits, evolution can be described as change in:
Q33. Evolution depends on:
Q34. Darwin's studies were mainly conducted in:
Q35. In the third situation, beetle weight decreased due to:
Q36. Natural selection results in:
Q37. Mendel and Darwin:
Q38. Change in frequency of inherited traits over generations is called:
Q39. Genetic drift provides:
Q40. During DNA replication, the two strands of the DNA molecule separate because of:
Q41. The scientist who proposed chemical origin of life was:
Q42. The process by which traits are passed from parents to offspring is called:
Q43. Variation alone is not sufficient for evolution; it must be:
Q44. Reduction in beetle weight due to starvation is:
Q45. Evolution requires variation that is:
Q46. Accidents affecting gene frequency in small populations lead to:
Q47. Germ cells are formed in:
Q48. Genetic drift differs from natural selection because it is:
Q49. Darwin's voyage lasted for:
Q50. After food becomes plentiful again, beetle weight will:
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