- 1(current)
Q. No.Homologous organs are:
1. Wings of cockroach and wings of bats
2. Wings of insects and wings of birds
3. Air bladder of fishes and lungs of frog
4. Pectoral fins of fishes and forelimbs of horse
Which one of the following describes correctly the homologous structures:
| 1. | Organs with anatomical similarities, but performing different functions |
| 2. | Organs with anatomical dissimilarities but performing the same function |
| 3. | Organs that have no function now, but had an important function in ancestors |
| 4. | Organs appear only in the embryonic stage and disappear later in the adult |
Similarities in organisms with different genotypes indicate:
1. Microevolution
2. Macroevolution
3. Convergent evolution
4. Divergent evolution
Which of the following are homologous organs:
1. Wings of Birds & Locust
2. Wings of birds (Sparrow) & Pectoral fins of fish
3. Wings of Bat & Butterfly
4. Legs of frog & Cockroach
On Galapagos island, Darwin observed variation in beaks of birds (Darwin's finches) and he concluded:
1. Inter species variation
2. Intraspecies variation
3. Natural selection according to food
4. Inheritance of acquired characters
Which evidence of evolution related to Darwin's finches:
1. Evidence from biogeographical distribution
2. Evidence from comparative anatomy
3. Evidence from embryology
4. Evidence from palaeontological
Palaeontological evidences for evolution refer to the
1. development of embryo
2. homologous organs
3. fossils
4. analogous organs
Fossils are generally found in
1. sedimentary rocks
2. igneous rocks
3. metamorphic rocks
4. any type of rock
Match List-I with List-II:
| List-I | List-II | ||
| (a) | Adaptive radiation | (i) | Selection of resistant varieties due to excessive use of herbicides and pesticides |
| (b) | Convergent evolution | (ii) | Bones of forelimbs in Man and Whale |
| (c) | Divergent evolution | (iii) | Wings of Butterfly and Bird |
| (d) | Evolution by anthropogenic action | (iv) | Darwin Finches |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (i) | (iv) | (iii) |
| 2. | (i) | (iv) | (iii) | (ii) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (iii) | (ii) | (i) | (iv) |
- 1(current)
Q. No.
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