1. Forelimbs of man, bat and cheetah
2. Heart of bat, man and cheetah
3. Brain of bat, man and cheetah
4. Eye of octopus, bat and man
| 1. | Multiple-step mutations | 2. | Saltation |
| 3. | Phenotypic variations | 4. | Minor mutations |
Artificial selection to obtain cows yielding higher milk output represents:
| 1. | Directional, as it pushes the mean of the character in one direction |
| 2. | Disruptive, as it splits the population into two, one yielding higher output and the other lower output |
| 3. | Stabilizing followed by disruptive, as it stabilizes the population to produce higher-yielding cows |
| 4. | Stabilizing selection, as it stabilizes this character in the population |
In Hardy- Weinberg equation, the frequency of heterozygous individual is represented by
(1) P2
(2) 2pq
(3) pq
(4) q2
Analogous structures are a result of
| 1. | Convergent evolution |
| 2. | shared ancestry |
| 3. | stabilising selection |
| 4. | divergent evolution |
Genetic drift operates in:
| 1. | small isolated population |
| 2. | large isolated population |
| 3. | non-reproductive population |
| 4. | slow reproductive population |
The chronological order of human evolution from early to the recent is?
| 1. | Australopithecus→Ramapithecus→Homo habilis→Homo erectus |
| 2. | Ramapithecus→Australopithecus→ Homo habilis→Homo erectus |
| 3. | Ramapithecus→Homo habilis→ Australopithecus →Homo erectus |
| 4. | Australopithecus→Homo habilis→Ramapithecus →Homo erectus |
Which of the following is the correct sequence of events in the origin of life?
| I: | Formation of protobionts. |
| II: | Synthesis of organic monomers. |
| III: | Synthesis of organic polymers. |
| IV: | Formation of DNA-based genetic systems. |
| 1. | I, II, III, IV | 2. | I, III, II, IV |
| 3. | II, III, I, IV | 4. | II, III, IV, I |
| 1. | convergent evolution | 2. | shared ancestry |
| 3. | stabilizing selection | 4. | divergent evolution |