Evolution

Forelimbs of cat, lizard used in walking, forelimbs of whale used in swimming and forelimbs
of bats used in flying are an example of:

In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining
160 to aa. Based on this data, the frequency of allele A in the population is :

Genetic variation in a population arises due to :

Random undirectional change in allele frequencies
that occur by chance in all populations and especially
in small populations is known as :-

The finch species of Galapagos Islands are grouped
according to their food sources. Which of the
following is not a finch food ?

Dinosaurs dominated the World in which of the
following geological era ?

According to Darwin, the organic evolution is due to -

The tendency of population to remain in genetic equilibrium may be disturbed by :

Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is
referred to as :

The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function, This
is an example of :

The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in
response to a common environmental challenge is called :

Which one of the following options gives one correct example each of convergent evolution and
divergent evolution ?

Evolution of different species in a given area starting from a point and spreading to other
geographical areas is known as

The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with
short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a
lumbering gait and stooped posture was ...

What was the most significant trend in the evolution of modern man (Homo sapiens) from his
ancestors ?

The idea of mutations was brought forth by :

What was the most significant trend in the evolution of modern man (Homo sapiens) from his
ancestors ?

Darwin's finches are a good example of –

Given below are four statements (A-D) each with
one or two blanks. Select the option which
correctly fills up the blanks in two statements –
Statements :
(A) Wings of butterfly and birds look alike and
are the results of (i) , evolution
...

The most apparent changes during the
evolutionary history of Homo sapiens is traced
in

In the case of peppered moth (Biston betularia)
the black-coloured from became dominant over
the light-coloured form in England during
industrial revolution. This is an example of -

Peripatus is a connecting link between :

Darwin's finches are a good example of –

Which one of the following is incorrect about
the characteristics of protobionts (coacervates
and microspheres) as envisaged in the abiogenic
origin of life?

Which one of the following scientist's name is
correctly matched with the theory put fourth by
him?

Thorn of Bougainvillea and tendril of Cucurbita
are examples of:

The finches of Galapogas islands provide an
evidence in favour of-

When two species of different genealogy come
to resemble each other as a result of adaptation,
the phenomenon is termed:-

Adaptive radiation refers to:-

The concept of chemical evolution is based on-

Which one of the following statements is correct?

An important evidence in favour of organic
evolution is the occurrence of-

Jurassic period of the Mesozoic era
characterized by-

Which one of the following amino-acids was not
found to be synthesized in Miller's experiment ?

Praying mantis is a good example of-

Which of the following is the relatively most
accurate method for dating of fossils ?

There are two opposing views about origin of
modern man. According to one view Homo
erectus in Asia were the ancestors of modern
man. A study of variation of DNA however
suggested African origin of modern man. What
kind of observation of DN...

Which one of the following phenomena supports
Darwin's concept of natural selection in organic
evolution ?

Which of the following is not true for a species ?

Which one of the following experiments
suggests that simplest living organisms could
not have originated spontaneously from non-living matter ?

At a particular locus, frequency of 'A' allele is
0.6 and that of 'a' is 0.4. What would be the
frequency of heterozygotes in a random mating
population at equilibrium ?

De Vries gave his mutation theory on organic
evolution while working on -

According to oparin, which one of the following
was not present in the primitive atmosphere of
the earth ?

Age of fossils in the past was generally
determined by radio-carbon method and other
methods involving radioactive elements found in
the rocks. More precise methods, which were
used recently and led to the revision of the
evolutionary perio...

Which one of the following is living fossil ?

What kind of evidence suggested that man is
more closely related with chimpanzee than with
other hominoid apes ?

Diversification in plant life appeared

Convergent evolution is illustrated by : -

Which one of the following describes correctly
the homologous structures ?

Which one of the following sequences was
proposed by Darwin and Wallace for organic
evolution ?