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
Most fossils are found in:
1. Granite
2. Sedimentary rocks
3. Lava flows
4. Black soil
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