extinct human ancestor who ate only fruits and hunted with ... · forelimbs of cat, lizard used in...

01

Extinct human ancestor who ate only fruits and

hunted with stone weapons was

(A) Australopithecus

(B) Dryopithecus

(C) Ramapithecus

(D) Homo erectus.

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02

Flowering plants might have originated from

(A) Chlorophyte ancestors

(B) Tracheophyte ancestors

(C) Rhynia type plants

(D) Psilophytes.

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03

According to Darwin, the organic evolution is due

to

(A) Competition within closely related species.

(B) Reduced feeding efficiency in one species due to

the presence of interfering species.

(C) Intraspecific competition.

(D) Interspecific competition.

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04

Variation in gene frequencies within populations can

occur by chance rather than by natural selection. This

is referred to as

(A) Random mating

(B) Genetic load

(C) Genetic flow

(D) Genetic drift.

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05

Artificial selection to obtain cows yielding higher milk output

represents

(A) Directional as it pushes the mean of the character in one

direction

(B) Disruptive as it splits the population into two, one yielding

higher output and the other lower output

(C) Stabilizing followed by disruptive as it stabilizes the population

to produce higher yielding cows

(D) Stabilizing selection as it stabilizes this character in the

population.

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06

Which among these is the correct combination of

aquatic mammals?

(A) Dolphins, Seals, Trygon

(B) Whales, Dolphins, Seals

(C) Trygon, Whales, Seals

(D) Seals, Dolphins, Sharks.

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07

The similarity of bone structure in the forelimbs of

many vertebrates is an example of

(A) Homology

(B) Analogy

(C) Convergent evolution

(D) Adaptive radiation.

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08

Among the following sets of examples for divergent

evolution, select the incorrect option

(A) Forelimbs of man, bat and cheetah

(B) Heart of bat, man and cheetah

(C) Brain of bat, man and cheetah

(D) Eye of octopus, bat and man.

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09

Which of the following cannot be explained by

Lamarckism?

(A) Absence of lips in snakes

(B) Long neck of giraffe

(C) Degeneration of visual apparatus in cave dwellers

(D) Dull progeny of noble laureate.

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10

Thorn of Bougainvillea and tendril of Cucurbita are

example of

(A) Analogous organs

(B) Homologous organs

(C) Vestigial organs

(D) Retrogressive evolution.

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11

Which of the following characteristics is mainly

responsible for diversification of insects on land

(A) Exoskeleton

(B) Eyes

(C) Segmentation

(D) Bilateral symmetry.

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12

Which of the following had the smallest brain

capacity

(A) Homo neanderthalensis

(B) Homo habilis

(C) Homo erectus

(D) Homo sapiens

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13

Forelimbs of cat, lizard used in walking; forelimbs

of whale used in swimming and forelimbs of bats

used in flying are an example of

(A) Analogous organs

(B) Adaptive radiation

(C) Homologous organs

(D) Convergent evolution.

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14

Which one of the following is reptilian ancestor of

birds?

(A) Hesperornis

(B) Ichthyornis

(C) Archaeopteryx

(D) Lycaenops.

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15

A high density elephant population in an area will

result in

(A) Mutualism

(B) Predation on one another

(C) Interspecific competition

(D) Intraspecific competition.

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16

Among human ancestors, brain size was more than

1000 cc in

(A) Homo erectus

(B) Home habilius

(C) Homo neanderthalensis

(D) Ramapithecus.

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17

Finches of Galapogos provide evidence for

(A) Retrogressive evolution

(B) Special creation

(C) Biogeographical evolution

(D) Evolution due to mutation.

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18

What is common to Whale, Seal and Shark

(A) Homoiothermy

(B) Seasonal migration

(C) Thick subcutaneous fat


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19

Evolution of different species starting from a point

spreading to other area is

(A) Adaptive radiation

(B) Natural selection

(C) Migration

(D) Divergent evolution.

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20

Concept of mutations was put forth by

(A) Charles Darwin who found a wide variety of organisms

during sea voyage

(B) Hugo de Vries who worked on Evening Primrose

(C) Gregor Mendel who worked an Pisum sativum

(D) Hardy Weinberg who worked on allele frequencies in

population.

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21

An evolutionary pattern characterised by increase

in number and kind of closely related species is

(A) Convergent evolution

(B) Parallel evolution

(C) Adaptive radiation

(D) Divergent evolution.

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22

Extinct human who lived 1,000,000-40,000 years ago in

Europe, Asia and parts of Africa having short stature,

heavy eye brows, retreating forehead, large jaws with

heavy teeth, stocky body, lumbering gait and stooped

posture was

(A) Homo habilius (B) Ramapithecus

(C) Neanderthal Man (D) Cro-Magnon Man.

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23

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

Of the above statements which one of the following options is

correct

(A) Both (a) and (b) are correct

(B) Both (a) and (b) are false

(C) (a) is correct but (b) is false

(D) (b) is correct but (a) is false.

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24

In Hardy-Weinberg equation, the frequency of

heterozygous individual is represented by

(A) pq

(B) q2

(C) p2

(D) 2pq.

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25

The chronological order of human evolution from early to the

recent is

(A) Ramapithecus Homo habilis Australopithecus

Homo erectus

(B) Australopithecus Homo habilis Ramapithecus

Homo erectus

(C) Australopithecus Ramapithecus Homo habilis

Homo erectus

(D) Ramapithecus Australopithecus Homo habilis

Homo erectus.

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26

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

(A) II, III, I, IV (B) II, III, IV, I

(C) I, II, III, IV (D) I, III, II, IV.

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27

“Homo sapiens” implies

(A) Human race

(B) Human beings

(C) Modern man

(D) None of these.

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28

Wings of pigeon, mosquito and bat show

(A) Divergent evolution

(B) Atavism

(C) Convergent evolution

(D) All of the above.

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29

The study of homologous structures in mature organisms

provides evidence for the evolutionary relationships among

certain groups of organisms. Which field of study includes

this evidence of evolution?

(A) Comparative cytology

(B) Biochemistry

(C) Geology

(D) Comparative anatomy.

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30

Darwin’s finches were a good example of



(C) Mutation

(D) None of the above.

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31

Highest cranial capacity has been in

(A) Peking Man

(B) Java Man

(C) Modern Man

(D) Handy Man.

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32

Which of the following was formed in S. Miller’s

experiment

(A) Microspheres

(B) Nucleic acids

(C) Amino acids

(D) Lipids.

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33

"Struggle for existence and survival of the fittest" is

associated with

(A) Lamarckism

(B) Mendelism

(C) Darwinism

(D) Neo Lamarckism.

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34

The wings of a bird and the wings of an insect are

(A) Analogous structures and represent convergent evolution

(B) Phylogenetic structures and represent divergent evolution

(C) Homologous structures and represent convergent evolution

(D) Homologous structures and represent divergent evolution.

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35

Tendrils of Cucurbita and thorns of Bougainvillea

are

(A) Homologous organs

(B) Analogous organs

(C) Vestigeal organs

(D) Atavistic divergence.

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36

Which one of the following is closest relative of Man

(A) Sinanthropus/Chimpanzee

(B) Orang Utan

(C) Gorilla

(D) Gibbon.

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37

Which of the following best explains the origin of life on

earth

(A) Formation of diverse organic molecules from

inorganic constituents

(B) Unit of life called spores were transferred to different

planets including earth

(C) Organic matter was present in the atmosphere

(D) Life came out of decaying and rotting matter.

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38

Saltation is

(A) Minor heritable variation

(B) Directional random mutation

(C) Single step large mutation

(D) Small directional variation.

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39

Machanism of organic evolution proposed by Hugo

deVries is based upon

(A) Oenothera lamarckiana

(B) Pisum sativum

(C) Drosophila

(D) Lathyrus.

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40

Analogous structures are a result of

(A) Shared ancestry

(B) Stabilizing selection

(C) Divergent evolution


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41

The cranial capacity was largest among the

(A) Peking man

(B) African man

(C) Java Ape man

(D) Neanderthal man.

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42

A baby has been born with a small tail. It is the case

exhibiting

(A) Retrogressive evolution

(B) Mutation

(C) Atavism

(D) Metamorphosis.

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43

Primary source of allelic variation is

(A) Independent assortment

(B) Recombination

(C) Mutation

(D) Polyploidy.

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44

Which ones are not analogous organs

(A) Wings of birds and wings of butterfly

(B) Eye of Octopus and eye of mammals

(C) Flippers of penguins and flippers of Dolphin

(D) Thorns of Bougainvillea and tendril of Cucurbita.

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45

Single step large mutation leading to speciation is

(A) Founder effect


(C) Saltation

(D) Natural selection.

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46

Occurrence of non-beneficial alleles in heterozygous

genotype is

(A) Genetic load

(B) Genetic drift

(C) Gene flow

(D) Selection.

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47

The process by which organisms with different evolutionary

history evolve similar phenotypic adaptations in response to

a common environmental challenge, is called

(A) Non-random evolution


(C) Natural selection


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48

Which one of the following are analogous structures

(A) Flippers of Dolphin and Legs of Horse

(B) Wings of Bat and Wings of Pigeon

(C) Gills of Prawn and Lungs of Man

(D) Thorns of Bougainvillea and Tendrils of Cucurbita.

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49

Forelimbs of cat, lizard used in walking; forelimbs

of whale used in swimming and forelimbs of bats

used in flying are an example of


(B) Analogous organs

(C) Adaptive radiation

(D) Homologous organs.

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50

Biogenetic law was proposed by

(A) Von Baer

(B) Haeckel

(C) Swammerdam

(D) de Vries.

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extinct human ancestor who ate only fruits and hunted with ... · forelimbs of cat, lizard used in...

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