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Which of the following theory is related to transfer of life from one planet to another?
1. Theory of special creation 
2. Theory of biogenesis
3. Theory of spontaneous generation 
4. Cosmozoic theory

Stanley Miller had put the Oparin-Haldane theory to test in 1953 by creating in the laboratory, the probable conditions on the primitive earth. In the experiment simple aminoacids were synthesized from which of the following mixtures, as observed after eighteen days?
1. H₂, O₂, N₂ and H₂O 
2. CH₄, CN, H₂ and O₂
3. H₂, NH₃, CH₄ and water vapour 
4. NH₃, CH₄ and O₂

According to cosmozoic theory, life comes on earth from other planets in space in the form of
1. Spores 
2. Seeds 
3. Gametes 
4. All of these

A.I. Oparin wrote
1. Origin of Species 
2. Origin of Life 
3. Philosophie Zoologique 
4. The Planet

What did S.L. Miller observe in his experimental set-up?
1. Formation of sugars and nitrogenous bases 
2. Formation of amino acids
3. Formation of pigments 
4. Formation of fats

Which of the following breakup water into hydrogen and oxygen on early earth?
1. Visible light 
2. Infrared radiations 
3. Sunlight 
4. UV radiations

Simple one-celled cyanobacteria like organisms appeared on earth
1. 5600 million years ago 
2. 5000 million years ago
3. 4600 million years ago 
4. 3.3 to 3.5 billion years ago

Eukaryotes developed around
1. 1,600 million years ago 
2. 459 million years ago
3. 3,800 million years ago 
4. 4,200 million years ago

Which ones are the most essential for origin of life?
1. Enzymes 
2. Proteins 
3. Carbohydrates 
4. Nucleic acid

Branching descent is one of the key concepts of
1. Lamarckian theory 
2. Miller’s theory 
3. The Big Bang theory 
4. Darwinian theory

Which of the following is incorrect match?
1. Devonian period – Age of fishes
2. Carboniferous period – Age of amphibians
3. Ordovician period – Age of invertebrates 
4. Cretaceous period – Age of reptiles

First mammals appeared around
1. 459 million years back 
2. 220 million years back
3. 1600 million years back 
4. 3800 million years back

Replacement of original hard parts or even the soft tissues of the organisms by minerals is known as
1. Compression 
2. Petrification 
3. Moulds 
4. Amber

All the following are examples of homologous organs, except
1. Arm of man and flipper of whale 
2. Thorn of Bougainvillaea and tendril of Cucurbita
3. Eye of an octopus and eye of a mammal 
4. Brain of frog and man

Which of the following is not vestigeal organ in human beings?
1. Rudimentary ear muscles and third molars (wisdom teeth), body hair
2. Coccygeal tail vertebrae and scalp muscles
3. Vermiform appendix and nictitating membrane of the eye
4. Ear pinna, patella, olecranon process

The ‘Recapitulation Theory’ was put forth by
1. Haeckel 
2. Cuvier 
3. Wallace 
4. Lamarck

Presence of tail and coarse hair in human baby is
1. Radiation 
2. Atavism 
3. Mutation 
4. Crossing over

Which of the following is not the result of convergent evolution?
1. Forelimbs of whales and bats 
2. Flippers of penguins and dolphins
3. Potato and sweet potato 
4. Eye of the octopus and mammals

If gene migration happens multiple times, it would lead to
1. Mutation
2. Gene flow 
3. Chemical evolution 
4. Genetic drift

Natural selection in which more individuals acquire peripheral character value at both the ends of the distribution curve is
1. Stabilising natural selection
2. Disruptive natural selection
3. Directional natural selection 
4. The curve never shows the formation of two peaks

In 1938, a coelacanth was found in
1. South America 
2. South Africa 
3. Australia 
4. England

Fossils discovered in Java in 1891 belonged to
1. Homo habilis 
2. Neanderthal man 
3. Homo erectus 
4. Ramapithecus

According to Hugo de Vries, the mechanism of evolution is 
1. Multiple step mutations 
2. Saltation
3. Minor mutations 
4. Phenotypic variations

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

Genetic drift operates in 
1. Small isolated population 
2. Large isolated population
3. Non-reproductive population 
4. Slow reproductive population

The chronological order of human evolution from early to the recent is 
1. Australopithecus $\to$ Ramapithecus $\to$ Homo habilis $\to$ Homo erectus
2. Ramapithecus $\to$ Australopithecus $\to$ Homo habilis $\to$ Homo erectus
3. Ramapithecus $\to$ Homo habilis $\to$ Australopithecus $\to$ Homo erectus
4. Australopithecus $\to$ Homo habilis $\to$ Ramapithecus $\to$ Homo erectus

Which of the following is the correct sequence of events in the origin of life? 
(i) Formation of protobionts
(ii) Synthesis of organic monomers
(iii) Synthesis of organic polymers
(iv) Formation of DNA-based genetic systems
1. (i) (ii) (iii) (iv)
2. (i) (iii) (ii) (iv)
3. (ii) (iii) (i) (iv)
4. (ii) (iii) (iv) (i)

A molecule that can act as a genetic material must fulfill the traits given below, except
1. It should be able to express itself in the form of 'Mendelian characters'
2. It should be able to generate its replica
3. It should be unstable structurally and chemically
4. It should provide the scope for slow changes that are required for evolution

Following are the two statements regarding the origin of life 
(a) The earliest organisms that appeared on the earth were non-green and presumably anaerobes.
(b) The first autotrophic organisms were the chemoautotrophs that never released oxygen.
On the above statements which one of the following options is correct?
1. Both (a) & (b) are false 
2. (a) is correct but (b) is false
3. (b) is correct but (a) is false 
4. Both (a) & (b) are correct

Industrial melanism is an example of
1. Neo Lamarckism 
2. Neo Darwinism 
3. Natural selection 
4. Mutation

Which of the following had the smallest brain capacity?
1. Homo habilis 
2. Homo erectus
3. Homo sapiens 
4. Homo neanderthalensis

A population will not exist in Hardy-Weinberg equilibrium if 
1. The population is large 
2. Individuals mate selectively
3. There are no mutations 
4. There is no migration

Which one of the following scientist’s name is correctly matched with the theory put forth by him?
1. Mendel – Theory of Pangenesis
2. Weismann – Theory of continuity of Germplasm
3. Pasteur – Inheritance of acquired characters
4. de Vries – Natural selection

One of the important consequences of geographical isolation is 
1. Random creation of new species 
2. No change in the isolation faunax
3. Preventing speciation 
4. Speciation through reproductive isolation

What is common to whale, seal and shark? 
1. Homoiothermy 
2. Seasonal migration
3. Thick subcutaneous fat 
4. Convergent evolution

An important evidence in favour of organic evolution is the occurrence of 
1. Homologous and vestigial organs 
2. Analogous and vestigial organs
3. Homologous organs only 
4. Homologous and analogous organs

Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters?
1. Lack of pigment in cave-dwelling animals 
2. Melanization in peppered moth
3. Absence of limbs in snakes 
4. Presence of webbed toes in aquatic birds

The concept that ‘Population tends to increase geometrically while food supply increases arithmetically’ was put forward by
1. Thomas Malthus 
2. Charles Darwin 
3. Stuart Mill 
4. Adam Smith

The change of the lighter-coloured variety of peppered moth (Biston betularia) to its darker variety (Biston carbonaria) is due to
1. Mutation 
2. Regeneration 
3. Genetic isolation 
4. Temporal isolation

The presence of gill slits, in the embryos of all vertebrates, supports the theory of
1. Metamorphosis 
2. Biogenesis 
3. Organic evolution 
4. Recapitulation

The animals of cold countries have relatively shorter and poorly developed ears, eyes, hairs and other phenotypic characters. This is known by which law?
1. Cope’s Law 
2. Dollo’s Law 
3. Allen’s Law 
4. Bergmann’s Law

Which of the following changes for man in the course of evolution is probably useless?
1. Development of being erect 
2. Development of cranial capacity
3. Loss of tail 
4. Development of opposable thumb

Which of the following is the direct ancestor of Homo sapiens?
1. Australopithecus 
2. H. sapiens neanderthalis
3. Homo erectus 
4. Ramapithecus

Which of the following is the correct group of vestigial organs in man?
1. Nictitating membrane, ear muscles, eyelids and coccyx
2. Appendix, coccyx, ear muscles and elbow joint
3. Wisdom tooth, coccyx, body hair and ear pinna
4. Wisdom tooth, body hair, nictitating membrane and vermiform appendix

Improvement of human race by controlled selective breeding between individual with desirable characteristics is called
1. Inbreeding 
2. Euthenics 
3. Eugenics 
4. None of these

Which of the following statements is correct regarding evolution of mankind?
1. Homo erectus is preceded by Homo habilis
2. Neanderthal man and Cro-magnon man were living at the same time
3. Australopithecus was living in Australia
4. None of these

Common origin of man and chimpanzee is best shown by
1. Binocular vision 
2. Homology in chromosomes
3. Dental formula 
4. Cranial capacity

In the developmental history of mammalian heart, it is observed that it passes through a two chambered fish like heart, three chambered frog like heart and finally four chambered stage. To which hypothesis can this above cited statement be approximated?
1. Lamarck’s principle 
2. Mendelian principles 
3. Biogenetic law 
4. Hardy Weinberg law

Character which is closely related to human evolution
1. Disappearance of tail 
2. Reduction in size of jaws
3. Binocular vision 
4. Flat nails

Due to discovery of which of the following in 1980, the evolution was termed as RNA world?
1. m-RNA, t-RNA, r-RNA synthesise proteins 
2. In some virus RNA is genetic material
3. RNA have enzymatic property 
4. RNA is not found in all cells

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?
1. 0.36 
2. 0.16 
3. 0.24 
4. 0.48