Q. No.Which of the following would lead to deviation from Hardy-Weinberg equilibrium?
1. Random mating
2. Lack of mutations
3. No gene flow or gene migration
4. Natural selection
The now extinct reptile group that evolved into mammals was:
1. Therapsids
2. Dinosaurs
3. Thecodants
4. Sauropsids
Identify the correct statement:
| 1. | Dryopithecus was more man like than Ramapithecus |
| 2. | Homo Habilis probably did not eat meat |
| 3. | Homo Erectus had a cranial capacity of around 800 cc |
| 4. | Agriculture came around 18000 years ago |
Darwin believed that certain parts of the body get larger and more complex through the generations because they :
1. are used more extensively than other parts
2. contribute to greater reproductive success
3. are pre-determined to do so
4. are most similar to God's perfection
The wings of a bird and that of an insect are:
1. Analogous structures
2. Homologous structure
3. Vestigial structures
4. Useless structures
Directional selection favours:
| 1. | Both extremes of a trait |
| 2. | Intermediate form of a trait |
| 3. | Environmental differences |
| 4. | One extreme form over the other extreme form and over intermediate forms of the trait |
Most often the factor that initiates the speciation of two populations is:
(1) Geographic isolation
(2) Inability of the gametes to fuse
(3) Different courtship behaviours
(4) Different copulatory organs
The oldest fossils resemble:
1. Amoeba
2. Red algae
3. Heterotrophic bacteria
4. Autotrophic bacteria
Reptilian ancestors of the mammals were the :-
1. Therapsids
2. Thecodonts
3. Pterosaurs
4. Plesiosaurs
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