Homo erectus evolved during

(1) pleistocene           

(2) miocene

(3) pliocene                 

(4) holocene

Subtopic:  Evolution Prior to Ape Man: 2 | Evolution Prior to Ape Man |
 57%
AIIMS - 2009
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Which of the following postulates is related with Neo-Darwinism?

(1) Mutations are believed to help form new species.

(2) It incorporates isolation as an essential component of evolution.

(3) It can explain the occurrence of unchanged forms over millions of years.

(4) All of the above.

 74%
AIIMS - 2009
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Which of the following statements is correct?

(1) Lion and leopard show convergent evolution

(2) Cryptic camouflage is seen in Biston betularia.

(3) Natural selection is responsible for the extinction of dinosaurs

(4) Homo habilis and Homo erectus are closely related.

Subtopic:  Genetic Basis of Adaptation |
AIIMS - 2011
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Which one the following evidences does not favour the Lamarckian concept of inheritance of acquired characters?

(1) Absence of limbs in snakes

(2) Melanization in peppered moth

(3) Presence of webbed toes in aquatic birds

(4) Lack of pigment in cave-dwelling animals 

 66%
AIIMS - 2011
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The extinct human ancestor, who ate only fruits and hunted with stone weapons was

(1) Ramapithecus

(2) Australopithecus

(3) Dryopithecus

(4) Homo erectus

 70%
From NCERT
AIIMS - 2012
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In Miller's experiment, he used a mixture of CH4, NH3, H2 and water vapour in a closed flask to mimic early earth conditions. What was the temperature at which this flask was kept?

(a) 800°C

(b) 1200°C

(c) 200°C

(d) 400°C

Subtopic:  Urey & Miller Experiment |
 94%
From NCERT
AIIMS - 2013
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Which of the following is reptilian ancestor of birds?

(1) Hesperornis

(2) Ichthyornis

(3) Archaeopteryx

(4) Lycaenops

Subtopic:  Palentological Evidences of Evolution |
 85%
AIIMS - 2015
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The correct sequence of stages in the evolution of modern man (Homo sapiens), is

(1) Homo erectus, Australopithecus, neanderthal man, cro-magnon man, modern man

(2) Australopithecus, Homo erectus, neanderthal man, cro-magnon man, modern man

(3) neanderthal man, Australopithecus, cro-magnon man, Homo erectus, modern man

(4) Australopithecus, neanderthal man, cro-magnon, Homo erectus, modern man

Subtopic:  Evolution of Homo Sapiens |
 85%
From NCERT
AIIMS - 2016
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Documented microfossils have been found that are as old as

(1) 2.5 billion years

(2) 3.5 billion years

(3) 1.5 billion years

(4) 2.5 billion years

Subtopic:  Biochemical Evidences |
AIIMS - 2017
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From the statements given below, which one most likely represents an example of disruptive selection.

I. Industrial melanism in peppered moth.

II. Population of butterflies that are either all yellow or all blue.

III. Population of rabits that evolves more body fat in response to a cold climate.

IV. Population of wrens that evolves to be smaller at sexual maturity in response to predation pressure.

V. Very tall and very short pine trees being removed from a population by herbivorey.

(1) Only II                             

(2) II and III

(3) Only IV                             

(4) III and IV        

Subtopic:  Natural Selection |
 51%
AIIMS - 2017
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