Prepare for NEET Biology Genetic Evolution (Evolution Of Life Forms-A Theory) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert guidance to understand Darwinian and Neo-Darwinian perspectives.
NEET Questions / Zoology / Genetic Evolution / Evolution Of Life Forms-A Theory
The concept of punctuated equilibrium challenges the traditional view of evolution by suggesting:
Evolution proceeds at a constant, gradual rate.
Long periods of stasis punctuated by rapid bursts of evolutionary change.
Evolutionary changes occur only in small, isolated populations.
Acquired characteristics are inherited and drive evolutionary change.
Which observation MOST directly challenges the idea of a universally applicable “molecular clock” for dating evolutionary divergence?
Fossil evidence sometimes contradicts molecular clock estimates.
Mutation rates can be influenced by environmental factors.
Different genes evolve at different rates, even within the same lineage.
Horizontal gene transfer can introduce new genes into a lineage.
The evolutionary significance of the Burgess Shale fossils lies primarily in:
Providing evidence for the earliest forms of life on Earth.
Demonstrating a rapid diversification of body plans during the Cambrian explosion.
Showing the transition from aquatic to terrestrial life.
Illustrating the co-evolution of plants and animals.
The concept of 'adaptive radiation' is BEST exemplified by:
The evolution of antibiotic resistance in bacteria.
The development of camouflage in a prey species.
Darwin's finches on the Galapagos Islands developing diverse beak shapes for different food sources.
The gradual increase in size of a particular species over generations.
Which scenario would MOST likely lead to allopatric speciation?
Two closely related plant species hybridizing in a shared habitat.
A mutation arising in a single individual within a population.
A river changing course and dividing a population of rodents into two isolated groups.
Seasonal variations in food availability leading to different feeding behaviors within a bird species.
Which of the following is NOT a key idea of Darwin's theory of evolution?
Organisms can change their traits during their lifetime and pass these changes to their offspring.
Natural selection favors individuals with advantageous traits.
There is variation among individuals within a population.
More offspring are produced than can survive.
What is the primary driving force behind evolution according to Darwin?
Mutation
Migration
Natural selection
Genetic drift
Which of these provides evidence for evolution?
The amount of sunlight received by a location
The temperature of the Earth's core
The fossil record
The chemical composition of rocks
What does 'survival of the fittest' mean in the context of evolution?
The strongest individuals always survive.
Individuals best adapted to their environment are more likely to survive and reproduce.
Only the fastest individuals survive.
The largest individuals in a population are the most fit.
Evolution is best described as:
A rapid change in an individual's traits during its lifetime.
A gradual change in the characteristics of a population over time.
The development of new species in a single generation.
The unchanging nature of life forms.
