Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.

(1). Analogy, divergent
(2). Analogy, convergent
(3). Homology, divergent
(4). Homology, convergent

Number of Attempts: 2

Correct Attempts: 1

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Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action
(a) Darwin's Finches of Galapagos islands.
(b) Herbicide resistant weeds.
(c) Drug resistant eukaryotes.
(d) Man-created breeds of domesticated animals like dogs.

(1). (a) and (c)
(2). (b), (c) and (d)
(3). only (d)
(4). only (a)

Number of Attempts: 2

Correct Attempts: 1

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The flippers of the penguins and dolphins are the example of the

(1). Convergent evolution
(2). Divergent evolution
(3). Adaptive radiation
(4). Natural selection

Number of Attempts: 2

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Given below are some stages of human evolution. Arrange them in correct sequence (Past to recent)
A. Homo habilis
B. Homo sapiens
C. Homo neanderthalensis
D. Homo erectus
Choose the correct sequence of human evolution from the options given below:

(1). C-B-D-A
(2). A-D-C-B
(3). D-A-C-B
(4). B-A-D-C

Number of Attempts: 2

Correct Attempts: 1

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Match List I with List II:

Choose the correct answer from the options given below:

(1). A-I, B-II, C-IV, D-III
(2). A-III, B-I, C-IV, D-II
(3). A-II, B-I, C-III, D-IV
(4). A-III, B-I, C-II, D-IV

Number of Attempts: 2

Correct Attempts: 1

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Select the correct group/set of Australian Marsupials exhibiting adaptive radiation.

(1). Numbat, Spotted cuscus, Flying phalanger.
(2). Mole, Flying squirrel, Tasmanian tiger cat.
(3). Lemur, Anteater, Wolf.
(4). Tasmanian wolf, Bobcat, Marsupial mole.

Number of Attempts: 2

Correct Attempts: 1

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Natural selection where more individuals acquire a specific character value other than the mean character value, leads to:

(1). Stabilising change
(2). Directional change
(3). Disruptive change
(4). Random change

Number of Attempts: 2

Correct Attempts: 1

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Which of the following statements is not true?

(1). Analogous structures are a result of convergent evolution
(2). Sweet potato and potato is an example of vo analogy
(3). Homology indicates common ancestry
(4). Flippers of penguins and dolphins are a pair of homologous organs

Number of Attempts: 2

Correct Attempts: 1

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Match List-I with List-II.

Choose the correct answer from the options given below.

(1). (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
(2). (a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)
(3). (a) - (ii), (b) - (i), (c)-(iv), (d) - (iii)
(4). (a) - (i), (b) - (iv), (c) - (iii), (d) - (ii)

Number of Attempts: 2

Correct Attempts: 1

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The factor that leads to Founder effect in population is:

(1). Natural selection
(2). Genetic recombination
(3). Mutation
(4). Genetic drift

Number of Attempts: 2

Correct Attempts: 1

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Flippers of Penguins and Dolphins are examples of:

(1). Convergent evolution
(2). Industrial melanism
(3). Natural selection
(4). Adaptive radiation

Number of Attempts: 2

Correct Attempts: 1

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Embryological support for evolution was disapproved by:

(1). Alfred Wallace
(2). Charles Darwin
(3). Oparin
(4). Karl Ernst von Baer

Number of Attempts: 2

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From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask

(1). CH₃, H₂, NH₄ and water vapor at 800°C
(2). CH₄, H₂, NH₃ and water vapor at 600°C
(3). CH₃, H₂, NH₃ and water vapor at 600°C
(4). CH₄, H₂, NH₃ and water vapor at 800°C

Number of Attempts: 2

Correct Attempts: 1

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In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive where as 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place ?

(1). Stabilizing Selection
(2). Disruptive Selection
(3). Cyclical Selection
(4). Directional Selection

Number of Attempts: 2

Correct Attempts: 1

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Match the hominids with their correct brain size :


(1). (a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)
(2). (a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
(3). (a) - (iv), (b) - (iii), (c) - (i), (d) - (ii)
(4). (a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)

Number of Attempts: 2

Correct Attempts: 1

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Variations caused by mutation, as proposed by Hugo de Vries, are

(1). random and direction less.
(2). small and directional.
(3). small and direction less.
(4). random and directional.

Number of Attempts: 2

Correct Attempts: 1

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Among the following sets of examples for divergent evolution, select the incorrect option

(1). Eye of octopus , bat and man
(2). Brain of bat , man and cheetah
(3). Heart of bat , man and cheetah
(4). Forelimbs of man , bat and cheetah

Number of Attempts: 2

Correct Attempts: 1

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The similarity of bone structure in the forelimbs of many vertebrates is an example of

(1). adaptive radiation.
(2). convergent evolution.
(3). analogy.
(4). homology .

Number of Attempts: 2

Correct Attempts: 1

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Artificial selection to obtain cows yielding higher milk output represents

(1). Stabilizing ; followed by disruptive as it stabilizes the population to produce higher yielding cows .
(2). Stabilizing ; selection as it stabilizes this character in the population .
(3). Directional ; as it pushes the mean of the character in one direction .
(4). Disruptive ; as it splits the population into two , one yielding higher output and the other lower output .

Number of Attempts: 2

Correct Attempts: 1

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Analogous structures are a result of

(1). convergent evolution
(2). shared ancestry
(3). stabilising selection
(4). divergent evolution

Number of Attempts: 2

Correct Attempts: 1

Time Taken: 00:04

Average Time: 00:02