Q. No.At a particular locus, frequency of 'A' allele is 0.6 and that of 'a' is 0.4. What would be the frequency of heterozygotes in a randomly mating population of equilibrium ?
(1) 0.16
(2) 0.36
(3) 0.48
(4) 0.24
Speciation of sympatric species is due to
| 1. | geographic isolation |
| 2. | reproductive isolation |
| 3. | isolation/separation |
| 4. | migration |
Flame cells and Malpighian tubules are the analogous organ in
| 1. | insects and arthropods respectively |
| 2. | arthropods and echinodermates respectively |
| 3. | helminths and arthropods with other insect respectively |
| 4. | arthropds and other insect with helminths respectively |
Tendrils in plants are an exapmle of
1. Convergent evolution
2. Radiation
3. Divergent evolution
4. Co-evolution
Theory of 'Saltations' was given by
| 1. | G Mendel | 2. | Hugo de Vries |
| 3. | J B S Haldane | 4. | H J Miller |
The animal group which does not exist in Galapagos island is
| 1. | Insects | 2. | Protozoa |
| 3. | Crustacea | 4. | Amphibia |
Appearence of dark-coloured pepper moths among the light-coloured ones as a result of increased industrial pollution is an example of
| 1. | Disruptive selection |
| 2. | Stabilizing selection |
| 3. | Directional selection |
| 4. | None of the above |
Match the columns
|
|
Column I |
Column II | |
|
A.
B.
C. |
Hugo de Vries
Julian Huxley
Jean Baptiste |
1.
2.
3. |
Inheritance of acquired characters Multiplication of individual species in geographical proportion Mutation theory of evolution |
Codes:
A B C
(1) 1 2 3
(2) 2 3 1
(3) 3 1 2
(4) 3 2 1
Hardy-Weinberg's principle of 'zero evolution' is based on
| 1. | genetic equilibrium | 2. | random mating |
| 3. | no migrations | 4. | All of the above |
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