MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 25 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The process that has transformed life on earth from its earliest forms to vast diversity is |
| A. | Mutation |
| B. | Evolution |
| C. | Migration |
| D. | Genetic drift |
| Answer» C. Migration | |
| 2. |
Carolus Linnaeus was believer of |
| A. | Special creation |
| B. | Natural selection |
| C. | Catastrophism |
| D. | Inheritance of acquired characters |
| Answer» B. Natural selection | |
| 3. |
Archaebacteria can survive at |
| A. | 150?C |
| B. | 300?C |
| C. | 120?C |
| D. | 200?C |
| Answer» D. 200?C | |
| 4. |
Which scientist does not match his achievements |
| A. | Lamarck published his theory of evolution |
| B. | Lyell published principles of geology |
| C. | Malthus published essay on principle of population |
| D. | Cuvier published papers on inheritance |
| Answer» E. | |
| 5. |
What was the source of hydrogen for first photosynthetic organisms? |
| A. | Water |
| B. | Hydrogen present in soil |
| C. | Hydrogen sulphate |
| D. | Hydrogen sulphide |
| Answer» E. | |
| 6. |
Prokaryotes are considered to be evolved |
| A. | 3.5 billion years ago |
| B. | 1.5 billion years ago |
| C. | 4.5 billion years ago |
| D. | 1000 million years ago |
| Answer» B. 1.5 billion years ago | |
| 7. |
Neo-Darwinism has integrated discoveries and ideas from |
| A. | Taxonomy |
| B. | Paleontology |
| C. | Genetics |
| D. | All of these |
| Answer» E. | |
| 8. |
Flagella might have arisen through the ingestion of |
| A. | Cyano-bacteria |
| B. | Spirochetes |
| C. | Chlamydomonas |
| D. | Paramecium |
| Answer» C. Chlamydomonas | |
| 9. |
The actual remains or traces of organisms that lived in ancident geological times |
| A. | Vestigial remains |
| B. | Fossils |
| C. | Fuel |
| D. | None of these |
| Answer» C. Fuel | |
| 10. |
Most fossils are found in the |
| A. | Metamorphic rocks |
| B. | Soil |
| C. | Sedimentary rocks |
| D. | Volcanic mountains |
| Answer» D. Volcanic mountains | |
| 11. |
Analogous organs show |
| A. | Convergent evolution |
| B. | Divergent evolution |
| C. | Straight evolution |
| D. | Zig-zag evolution |
| Answer» B. Divergent evolution | |
| 12. |
In humans gill pouches have modified into |
| A. | Nose |
| B. | Ear |
| C. | Eustachian tubes |
| D. | External ear |
| Answer» D. External ear | |
| 13. |
A group of interbreeding individuals belonging to a particular species and sharing a common geopraphic area is called |
| A. | Community |
| B. | Family |
| C. | Population |
| D. | Race |
| Answer» D. Race | |
| 14. |
Natural selection can amplify or diminish variations that are |
| A. | Non heritable |
| B. | Heritable |
| C. | Both heritable and non heritable |
| D. | Acquired |
| Answer» C. Both heritable and non heritable | |
| 15. |
Adaptations that an organism acquires by its own actions are |
| A. | Heritable |
| B. | Not heritable |
| C. | Can be made heritable through some modifications |
| D. | Both heritable and not heritable |
| Answer» C. Can be made heritable through some modifications | |
| 16. |
A group of populations that have the potential to interbreed in nature is |
| A. | Genus |
| B. | Family |
| C. | Species |
| D. | Community |
| Answer» D. Community | |
| 17. |
If all members of a population are homozygous for the same allele, that allele is said to be |
| A. | Fixed in gene pool |
| B. | Mobile in gene pool |
| C. | Random in gene pool |
| D. | Stationary in gene pool |
| Answer» B. Mobile in gene pool | |
| 18. |
The ultimate source of all changes is |
| A. | Mutation |
| B. | Migration |
| C. | Genetic drift |
| D. | Selection |
| Answer» B. Migration | |
| 19. |
Disturbance in the gene pool is created by |
| A. | Emigration |
| B. | Immigration |
| C. | Both a and b |
| D. | Panmigration |
| Answer» D. Panmigration | |
| 20. |
Change in the frequency of alleles at a locus that occurs by chance is |
| A. | Multation |
| B. | Selection |
| C. | Non-random mating |
| D. | Genetic drift |
| Answer» E. | |
| 21. |
Which of the following organs serve no apparent purpose |
| A. | Vestigial organs |
| B. | Non vestigial organs |
| C. | Homologous organs |
| D. | Analogous organs |
| Answer» B. Non vestigial organs | |
| 22. |
Which of the following precesses had resulted in the production of different breeds of domestic dogs and pigeons? |
| A. | Natural selection |
| B. | Cross breeding |
| C. | Artificial selection |
| D. | Self breeding |
| Answer» D. Self breeding | |
| 23. |
Which of the following is not vestigial organ of man? |
| A. | Appendix |
| B. | Coccyx |
| C. | Nictitating membrane |
| D. | None of these |
| Answer» E. | |
| 24. |
Concept of evolution was first presented by |
| A. | Aristotle |
| B. | Lamarck |
| C. | Darwin |
| D. | Wallace |
| Answer» B. Lamarck | |
| 25. |
If we consider Hardy-Weinberg law, then following is incorrect in its sense |
| A. | Mutations cause changes in genetic frequency |
| B. | Migration changes allelic frequency |
| C. | There should not be selection |
| D. | Non-random mating will reduce chances of evolution |
| Answer» E. | |