Which of the following is NOT a crucial assumption of Hardy-Weinberg equilibrium?
No mutation
Random mating
No gene flow
No natural selection
Related Questions
Anthropogenic actions that leads to evolution is the use of
Herbicides
Pesticides
Antibiotics
All of these
Arrange the following events in a sequential order to describe the phenomenon of speciation
I. Over production rapid multiplication
II. Limited food and space
III. Struggle for existence
IV. Speciation
V. Inheritance of useful variation
VI. Natural selection/survival of the fittest
VII. Appearance of variation
The correct sequence is
I, II, III, V, VI, VII, IV
I, IV, II, III, VI, VII, V
I, II, IV, VI, III, VII, V
I, II, III, VII, VI, V, IV
Variations in a progeny takes place due to
Mutation
Recombination by gametogenesis
Gene flow or genetic drift
All of the above
A population of fish exhibits variation in tail fin size. Fish with medium-sized tail fins (5-7 cm) have the highest reproductive success, while fish with very small (<3 cm) or very large (>9 cm) tail fins experience lower reproductive rates. This is an example of:
Directional selection
Disruptive selection
Stabilizing selection
Artificial selection
A change in the relative abundance of an allele (the allelic frquency) within a population, over a succession of generations is called
Micro-evolution
Macro-evolution
Co-evolution
Phylog-enetic evolution
Which is not most common mechanism of genetic variation in the population of sexually reproducing organism?
Independent assortment
Crossing over
Random fertilization
Mutation
Fossil X is older than fossil Y if
X was found deeper in sediment than Y
Y was found deeper in sediment than X
Y had less vestigial organs
Fossil Y had a homologous and analogous organs of X
Select the examples which favours the mutational theory of evolution
I. Ancon sheep II. Hornless cattle
III. Cicer gigas IV. Novel oranges
V. Hairless cat VI. Double toed cat
The correct combination is
I, II, III, IV, V
I, II, IV, V, VI
II, III, IV, V, VI
I, III, IV, V, VI
Resistant varieties evolved in much lesser time because of
Natural selection
Faster rate of mutation
Anthropogenic (human) activities
Random selection
Which is a unit of evolution?
Cell
Individual
Population
Species
