Q. No.A Hominid fossil discovered in Java in 1891, now extinct, having a cranial capacity of about 900 cc was:
1.
Homo erectus
2.
Neanderthal man
3.
Homo sapiens
4.
Australopithecus
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The most apparent changes during the evolutionary history of Homo sapiens is traced in:
1. Walking upright
2. Shortening of the jaws
3. Remarkable increase in brain size
4. Loss of body hair
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Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements
Statements:
| (A) | Wings of butterflies and birds look alike and are the results of , evolution |
| (B) | Miller showed that CH4, H2, NH3, and , when exposed to electric discharge in a flask resulted in the formation of . |
| (C) | Vermiform appendix is a organ and an evidence pf evolution. |
| (D) | According to Darwin evolution took place due to and of the fittest. |
Options:
| 1. | (A) - (i) convergent, (B) - (ii) oxygen, (ii) nucleosides |
| 2. | (B) - (i) water vapour, (ii) amino acids, (C) - (i) rudimentary (ii) anatomical |
| 3. | (C) - (i) vestigial, (ii) anatomical, (D) - (i) mutations, (ii) multiplication |
| 4. | (D) - (i) small variations, (ii) survival, (A) - (i) convergent |
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The phenomenon of the evolution of different species in a given geographical area starting from a point and spreading to other habitats is called:
| 1. | Saltation | 2. | Co-evolution |
| 3. | Natural selection | 4. | Adaptive radiation |
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Embryological support for evolution was proposed by:
| 1. | Ernst Heckel | 2. | Karl Ernst von Baer |
| 3. | Charles Darwin | 4. | Alfred Wallace |
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What kind of evidence suggested that man is more closely related to chimpanzees than to other hominoid apes?
| 1. | Comparison of chromosome morphology only |
| 2. | Evidence from fossil remains and the fossil mitochondrial DNA alone |
| 3. | Evidence from DNA extracted from sex chromosomes, autosomes & mitochondria |
| 4. | Evidence from DNA from sex chromosomes only |
The presence of gills in the tadpole of a frog indicates that:
| 1. | Fishes evolved from frog-like ancestors |
| 2. | Frogs will have gills in future |
| 3. | Frogs evolved from gilled ancestors |
| 4. | Fishes were amphibious in the past |
Industrial melanism is an example of:
| 1. | Natural selection | 2. | Mutation |
| 3. | Racial difference | 4. | Predation |
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The sequence of which of the following is used to know the phylogeny?
| 1. | m-RNA | 2. | r-RNA |
| 3. | t-RNA | 4. | DNA |
The occurrence of endemic species in South America and Australia is because:
| 1. | these species have been extinct in other regions |
| 2. | of continental separation |
| 3. | there is no terrestrial route to these places |
| 4. | of retrogressive evolution |
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