The phenomenon of industrial melanism in Biston betularia demonstrates which evolutionary force most directly?
Genetic drift due to a bottleneck effect
Gene flow between moth populations
Mutation creating new melanic alleles
Natural selection driven by environmental change
Related Questions
The present concept of evolution is known as
Neo-Darwinism theory of evolution
Synthetic theory of evolution
Modern concept theory of evolution
All of the above
Mutations are considered raw materials of evolution because they
Cause death of organism
Contribute to new variations
Are stable
Random
Gradual accumulation of adaptation of changing environment leads to the origin of
New species
A genus
Old structures
All of these
Struggle for existence and survival of the fittest theories were given by
Wallace
Darwin
Lamarck
None of these
First theory of evolution was given by
Charles Darwin
Hugo de Vries
Lamarck
Wallace
The present concept of evolution is known as
Natural Selection
Modern Synthesis
Darwinism
Lamarckism
The main point of Darwin’s theory is
Variation
Natural selection
Enormous fertility
mutation
Biological concept of species was given by
E Mayer
Darwin
De Vries
Mendel
Biological concept of species was given by
E Mayer
Darwin
De Vries
Mendel
Which of the following is an evidence for Darwin’s theory of common descent?
There are patterns in the fossil record that suggest that other species have diverged from a single ancestor species
There are biogeographic patterns in the distribution of species, for instance, distinct bird species on an island tends to resemble one another, suggesting a common ancestor
There are common stages in the early embryological development of organisms, representing several distinct vertebrate groups
All of the above
