MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which scientist called water of primitive sea as pre biotic soup? |
| A. | Haldane |
| B. | Oparin |
| C. | Mendel |
| D. | Stevens |
| Answer» B. Oparin | |
| 2. |
Absence of oxygen in earth, made the atmosphere reducing. But it later became oxidizing in nature due to the emergence of ________ |
| A. | Angiosperms |
| B. | Gymnosperms |
| C. | Eukaryotic algae |
| D. | Cyanobacteria |
| Answer» E. | |
| 3. |
Which among the biologists, gave the most acceptable biochemical theory _____ |
| A. | Oparin |
| B. | Urey |
| C. | Darwin |
| D. | Lamarck |
| Answer» B. Urey | |
| 4. |
The primitive atmosphere was reducing since ______ |
| A. | Hydrogen atoms are very few |
| B. | Hydrogen atoms were active and many in number |
| C. | Helium atoms were more |
| D. | Oxygen atoms were more |
| Answer» C. Helium atoms were more | |
| 5. |
What is the time gap in between formation of Earth and origin of life? |
| A. | 1 billion years |
| B. | 0.5 billion years |
| C. | 4 billion years |
| D. | 4.5 billion years |
| Answer» C. 4 billion years | |
| 6. |
The organic compounds were the basis of life were proved by? |
| A. | Lamarck |
| B. | Darwin |
| C. | Mendel |
| D. | Stanley Miller and Harold C. Urey |
| Answer» E. | |
| 7. |
During the origin of life, which of the following was absent in the atmosphere? |
| A. | Methane |
| B. | Oxygen |
| C. | Hydrogen |
| D. | Ammonia |
| Answer» C. Hydrogen | |
| 8. |
During which period, life didn t exist? |
| A. | Mesozoic |
| B. | Cambrian period |
| C. | Paleozoic period |
| D. | Azoic period |
| Answer» E. | |
| 9. |
During which period, origin of life took place? |
| A. | Devonian |
| B. | Cenozoic |
| C. | Precambrian |
| D. | Mesozoic |
| Answer» D. Mesozoic | |
| 10. |
The first living form named protocell originated in the primitive oceans. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
During the time of evolution, the possible energy sources were ______ |
| A. | Chlorophyll |
| B. | Green plants |
| C. | Bacteria |
| D. | U.V rays and lightening |
| Answer» E. | |