The eye of an octopus and the eye of a cat show different patterns of structure, yet they perform similar functions. This is an example of:
1. | Homologous organs that have evolved due to convergent evolution. |
2. | Homologous organs that have evolved due to divergent evolution. |
3. | Analogous organs that have evolved due to convergent evolution. |
4. | Analogous organs that have evolved due to divergent evolution. |
Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as
1. Genetic flow
2. Genetic drift
3. Random mating
4. Genetic load
The tendency of population to remain in genetic equilibrium may be disturbed by
1. Random mating
2. Lack of migration
3. Lack of mutations
4. Lack of random mating
Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of
1. Analogous organs
2. Adaptive radiation
3. Homologous organs
4. Convergent evolution
Which one of the following are analogous structures?
1. Wings of Bat and Wings of Pigeon
2. Gills of Prawn and Lungs of Man
3. Thorns of Bougainvillea and Tendrils of Cucrbita
4. Flippers of Dolphin and Legs of Horse
Which is the most common mechanism of genetic variation in the population of a sexually reproduction organism?
1. Transduction
2. Chromosomal aberrations
3. Genetic drift
4. Recombination
A population will not exist in Hardy-Weinberg equilibrium if:
1. Individuals mate selectively
2. There are no mutations
3. There is no migration
4. The population is large
Which of the following had the smallest brain capacity?
1. Homo erectus
2. Homo sapiens
3. Homo neanderthalensis
4. Homo habilis
The wings of a bird and the wings of an insect are:
1. | Homologous structures that represent convergent evolution. |
2. | Homologous structures that represent divergent evolution. |
3. | Analogous structures that represent convergent evolution. |
4. | Phylogenetic structures that represent divergent evolution. |
Industrial melanism is an example of
1. Neo Lamarckism
2. Neo Darwinism
3. Natural selection
4. Mutation