Q. No.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
Statements:
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
The idea of mutations was brought forth by:
| 1. | Gregor Mendel, who worked on Pisum sativum |
| 2. | Hardy Weinberg, who worked on allele frequencies in a population |
| 3. | Charles Darwin, who observed a wide variety of organisms during sea voyages |
| 4. | Hugo do Vries, who worked on evening primrose |
| 1. | Migration | 2. | Natural selection |
| 3. | Genetic drift | 4. | Mutation |
1. Coenozoic
2. Jurassic
3. Mesozoic
4. Devonion
| 1. | Carrion | 2. | Insects |
| 3. | Tree buds | 4. | Seeds |
Jurassic period of the Mesozoic era is characterised by:
| 1. | gymnosperms, adminant plants, and first birds appear |
| 2. | radiation of reptiles and the origin of mammal-like reptiles |
| 3. | Dinosaurs become extinct and angiosperms appear |
| 4. | flowering plants and the first dinosaurs appear |
Which one of the following is not a living fossil?
1. King crab
2. Sphenodon
3. Archaeopteryx
4. Peripatus
An important evidence in favour of organic evolution is the occurrence of:
1. homologous and vestigial organs
2. analogous and vestigial organs
3. homologous organ only
4. analogous organ only
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