Assertion: A bacterial colony growing in a medium is exposed to new environmental conditions and may evolve as new species in a brief of time. Reason: Rate of appearance of new forms is linked to the life span and life cycle.
40%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
20%
b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion
20%
c) Assertion is true but Reason is false.
20%
d) Both Assertion and Reason are false.
Q.2.
During the course of origin of live, what was the sequence of substances which appeared on earth?
33%
a) Water, oxygen, nucleic acids, enzymes.
33%
b) Amino acids, ammonia, phosphates, nucleic acids.
33%
c) Glucose, amino acids, nucleic acids, proteins.
0%
d) Ammonia, amino acids, proteins, nucleic acids.
Q.3.
Which one of the following is regarded as the direct ancestor of modern man?
33%
a) Homo erectus
33%
b) Ramapithecus
33%
c) Homo habilis
0%
d) Cro-Magnon man.
Q.4.
When selection acts to support both extremes from array of phenotypes, the frequency of immediate phenotypes which was more, now decreases. This type of selection is called:
50%
a) Balancing selection.
0%
b) Disruptive selection
0%
c) Directional selection.
50%
d) Stabilizing selection.
Q.5.
Which of the following statement is true regarding human evolution?
50%
a) Australopithecus probably lived in South Asia about 3 – 4mya and they hunted with stone weapons.
0%
b) Fossils of Homo erectus were discovered in Java in 1891.
0%
c) The Neanderthal man with a brain size of 1400cc lived in East Africa grass lands about 3 – 4mya.
50%
d) Homo sapiens arose in Africa between 100000 – 40000 years back.
Q.6.
What evidence convinced scientists that Archaeopteryx should be classified as a bird rather than a small dinosaur?
0%
a) Scales.
100%
b) Toothless, elongated mouth like beak.
0%
c) A tail similar to that of modern birds.
0%
d) Fused collar bone, indicating flying ability.
Q.7.
Which one of the following scientist’s names is correctly matched with the theory put forward by him?
50%
a) Pasteur – Inheritance of acquired characters.
0%
b) De Vries – Natural selection
50%
c) Mendel – Theory of pangenesis.
0%
d) Weismann – Theory of continuity of germplasm
Q.8.
Select the correct statement from the following:
100%
a) First animal cell evolved from aerobic bacteria and blue green algae.
0%
b) Coal bed formation begins about 500mya.
0%
c) Adaptive radiations of mammals started from shrews like mammals at the Jurassic period.
0%
d) About 3 – 4mya man like primates walked in Central Asia.
Q.9.
The fossil formed from harder parts of the body infiltrated by minerals and turned into stony shapes is:
0%
a) Moulds.
100%
b) Coprolites
0%
c) Petrified.
0%
d) Cast.
Q.10.
Swan – necked flask experiment proved:
0%
a) Biogenesis.
0%
b) Abiogenesis.
100%
c) Gene therapy.
0%
d) Both (a) and (b)
Q.11.
Chemical reactions could have converted simple organic compounds into ____ for origin of life:
100%
a) Macromolecules.
0%
b) Cells.
0%
c) Nitrogen
0%
d) Micromolecules.
Q.12.
Theory of natural selection dwells on:
100%
a) Role of environment in evolution.
0%
b) Natural selection acting on favourable variations.
0%
c) Changes in gene complex resulting in heritable variations.
0%
d) None of the above.
Q.13.
Jurassic period of the Mesozoic era is characterised by:
100%
a) Flowering plants and first dinosaurs appear.
0%
b) Gymnosperms are dominant plants and first birds appear.
0%
c) Radiation of reptiles and origin of mammal like reptiles.
0%
d) Dinosaurs become extinct and angiosperms appear.
Q.14.
Identify the true statement:
100%
a) Mutations are adaptive and occur according to the changes in the environment.
0%
b) Genetic drift is the random fluctuations in the allele frequencies in large population.
0%
c) Natural selection is the difference in reproduction that causes difference in the contribution of alleles of next generation.
0%
d) Mutations are directional and occurs in the individuals of a population.
Q.15.
Type of selection operating in: (i) Average weight of the new born – X. (ii) Industrial melanism – Y. (iii) Sunflower population in Sacramento valley of California – Z. Here if X, Y and Z are representing the types of natural selection, then X, Y and Z will be:
100%
a) X – Directional selection, Y – Balancing selection, Z – Diversifying selection.
0%
b) X – Balancing selection, Y – Directional selection, Z – Diversifying selection.
0%
c) X – Diversifying selection, Y – Balancing selection, Z – Directional selection.
0%
d) X – Diversifying selection, Y – Directional selection, Z – Balancing selection.
Q.16.
Which of the following statement is false?
100%
a) Mutations are random and directionless while Darwinian variations are small and directional.
0%
b) The skull of baby chimpanzee is more like adult human skull than adult chimpanzee.
0%
c) Neanderthal man with brain size of 1400cc first used hides to protect their body and buried their dead.
0%
d) After industrialization there were more dark winged moths in the same area, they became dark due to industrial smoke and soot.
Q.17.
Assertion: Evolution is not occurring at present. Reason: Evolution is a very quick process.
100%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
0%
b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
0%
c) Assertion is true but Reason is false.
0%
d) Both Assertion and Reason are false.
Q.18.
Find out the true/false statements: (i) During the ice age between 85000 – 10000 years ago modern Homo sapiens arose. (ii) Agriculture came around 10000 years back and human settlement started. (iii) Homo erectus used hides to protect their body and buried their dead. (iv) The skull of baby chimpanzee is more like adult human skull than adult chimpanzee skull. (v) Australopithecus hunted with stone weapons.
100%
a) (i) and (iv) are false while (ii), (iii) and (v) are true.
0%
b) (ii), (iv) and (v) are true while (i) and (iii) are false.
0%
c) (i), (iii) and (v) are true while (ii) and (iv) are false.
0%
d) (ii) and (iv) are true while (i), (iii) and (v) are false.
Q.19.
Few fossils of man like bones have been discovered in Ethiopia and Tanzania about 2 – 4mya, they were probably not taller than 4 feet but walked up right. It is related with:
100%
a) Ramapithecus.
0%
b) Australopithecus.
0%
c)Dryopithecus
0%
d) Homo habilis.
Q.20.
Given below are four statements (i) – (iv) regarding geological time sale. Read them carefully: (i) Palaeozoic era is the era of ancient life. (ii) Ordovician period is the age of vertebrates. (iii) Giant ferns fall into coal deposits at the Triassic period. (iv) Ichthyosaursare evolved during Triassic period. Which of the following statements are correct?
100%
a) (i) and (iv).
0%
b) (ii) and (iii).
0%
c) (ii) and (iv).
0%
d) (i) and (iii).
Q.21.
Which one of the following phenomena supports Darwin’s concept of natural selection in organic evolution?
100%
a) Development of transgenic animals.
0%
b) Production of ‘Dolly’, the sheep by cloning.
0%
c) Prevalence of pesticide resistant insects.
0%
d) Development of organs from ‘stem cells’ for organ transplantation.
Q.22.
Which of the following feature is not of Ramapithecus?
100%
a) Hairy, walked like gorillas and chimpanzees.
0%
b) Existed 15mya.
0%
c) Ramapithecus was more man like.
0%
d) After its extinction Dryopithecus came into picture
Q.23.
Bryophytes evolved from:
100%
a) Psilophyton.
0%
b) Rhynia type plants.
0%
c) Tracheophyta ancestors.
0%
d) Chlorophyte ancestors.
Q.24.
Which of the following statements is not true if we consider postulates of Darwinian Theory of evolution?
100%
a) Evolution by natural selection would have started when cellular forms of life with similarities in metabolic capabilities originated on Earth.
0%
b) The rate of appearance of new forms is linked to the life cycle or the life span.
0%
c) Fitness is based on characteristics which are inherited.
0%
d) Adaptive ability is inherited.
Q.25.
Adaptive radiation does not follow which of the following statements?
100%
a) Black bird on Galapagos Islands observed by Darwin as an amazing example of Adaptive Radiation.
0%
b) All the varieties of Finches evolved on the same planet from original seed feeding feature to insectivorous and vegetarian finches.
0%
c) Australian marsupials, which are similar to each other evolved from an ancestral stock but all within the Australian island continent.
0%
d) More than one adaptive radiation appeared to have occurred in an isolated geographical area representing different habitats, Known as convergent evolution.
Q.26.
Which of the following conclusions is from industrial melanism? (
100%
a) Camouflage causes the white moths to get caught by predators more even in rural areas during industrialisation.
0%
b) During industrialisation, white variant of moths got wiped out completely in urban areas.
0%
c) During industrialisation, lichen will increase in number.
0%
d) In a mixed population, those that can better adapt, survive and increase in population size.
Q.27.
Triangular plates on the back were the morphological character of which of the following dinosaurs?
100%
a) Triceratops.
0%
b) Tyrannosaurus.
0%
c) Brachiosaurus.
0%
d) Stegosaurus
Q.28.
Which of the following conclusions is of paleontological evidences for evolution?
100%
a) A study of fossils in different sedimentary layers indicates the geological period in which they existed.
0%
b) The new life forms have arisen at same time in the history of Earth.
0%
c) Fossils are remains of hard parts of rocks showing the presence of carbon in life forms.
0%
d) Both B and C.
Q.29.
If Darwin's theory of pangenesis shows similarity with theory of inheritance of acquired characters then what shall be correct according to it?
100%
a) Useful organs become strong and developed while useless organs become extinct. These organs help in struggle for survival
0%
b) Size of organs increase with ageing
0%
c) Development of organs is due to will power
0%
d) There should be some physical basis of inheritance.
Q.30.
Homo erectus evolved during:
100%
a) Pleistocene.
0%
b) Miocene
0%
c) Pliocene.
0%
d) Holocene.
Q.31.
Which of the following is the relatively most accurate method for dating fossils?
100%
a) Potassium-argon method.
0%
b) Uranium-lead method.
0%
c) Electron-spin resonance method.
0%
d) Radio-carbon method.
Q.32.
Which of the following are analogous organs?
100%
a) Wings of bat and wings of pigeon.
0%
b) Green glands of prawn and lungs of man.
0%
c) Thorns of bougainvillea and tendrils of Cucurbita.
0%
d) Flippers of dolphin and legs of horse.
Q.33.
The calendar of earth’s past history indicating the evolution of life through time recorded in the sequence of rocks. This is called;
100%
a) Paleontological calendar.
0%
b) Geological time scale.
0%
c) Fossilisation time scale.
0%
d) Evolution.
Q.34.
Identify the primate using the following hints: He arose during the ice age, started agriculture 10, 000 years ago and his brain capacity is 1450cc.
100%
a) Homo sapiens sapiens.
0%
b) Homo sapiens fossilis.
0%
c) Homo sapiens futuralis.
0%
d) Homo sapiens neanderthalensis.
Q.35.
Among the land reptiles, which is the biggest one?
0%
a) Ichthyosaurus.
100%
b) Brontosaurus.
0%
c) Tyrannosaurus.
0%
d) Stegosaurus
Q.36.
There are some existing animals which represent an intermediate position between the two groups. Such animals are called:
100%
a) Cannibals.
0%
b) Connecting fossils
0%
c) Connecting links.
0%
d) Fossils
Q.37.
Philosophic zoologique was published in the year:
0%
c) 1809.
100%
d) 1875
0%
a) 1872.
0%
b) 1908.
Q.38.
It is argued that similarities in proteins and genes performing a given function among diverse organisms give clues to common ancestry. This type of evidence for evolution is called:
100%
a) Paleontological evidence
0%
b) Convergent evolution.
0%
c) Biochemical evidence.
0%
d) Divergent evolution.
Q.39.
The eyes of octopus and eyes of cat show different patterns of structure, yet they perform the similar function. This is an example of:
100%
a) Homologous organs that has evolved due to convergent evolution.
0%
b) Homologous organs that has evolved due to divergent evolution.
0%
c) Analogous organs that has evolved due to convergent evolution.
0%
d) Analogous organs that has evolved due to divergent evolution.
Q.40.
Living descendents of dinosaurs were:
0%
a) Crocodiles.
100%
b) Snakes.
0%
c) Mammals.
0%
d) Birds.
Q.41.
The first organisms to colonise land were:
0%
a) Ferns.
100%
b) Insects.
0%
c) Bryophytes.
0%
d) Ginkgos
Q.42.
Big bang theory was put forward by:
0%
a) Kant.
100%
b) Lemaitre
0%
c) Miller.
0%
d) Haldane.
Q.43.
The carboniferous period belongs to the era:
0%
a) Precambrian.
100%
b) Palaeozoic
0%
c) Cenozoic.
0%
d) Archaeozoic.
Q.44.
Over the time, some bones like humerus, radius, ulna, carpels, metacarpals and phalanges in the forelimbs in different groups of vertebrates were put to different uses. This falls under the category of:
0%
a) Missing links.
100%
b) Vestigial structures.
0%
c) Convergent evolution and analogous organs.
0%
d) Divergent evolution and homologous structures.
Q.45.
In which condition, the allele frequency remains constant for any species population?
0%
a) Sexual selection.
100%
b) Random mating.
0%
c) Mutation.
0%
d) Gene flow.
Q.46.
Which of the following is the correct group of vestigial organs in man?
100%
a) Nictitating membrane, ear muscles, eyelids and coccyx.
0%
b) Appendix, coccyx, ear muscles and elbow joints.
0%
c) Wisdom tooth, coccyx, plicasemilunaris and ear muscles
0%
d) Wisdom tooth, body hairs, nictitating membrane and vermiform appendix.
Q.47.
According to Darwin, evolution is:
100%
a) A small, directional and continuous process.
0%
b) A sudden but discontinuous process.
0%
c) A small and discontinuous process.
0%
d) None of the above.
Q.48.
Theory of Saltation was given by:
100%
a) Gregor Mendel.
0%
b) Hugo De Vries.
0%
c) J. B. S Haldane
0%
d) H. J. Miller.
Q.49.
Assertion: Populations of a species inhabiting different geographical areas are in a continuous process of adaptation to their surrounding environment and this lead to the evolution of new species. Reason: Geographical barriers obstruct the interbreeding of populations of a species leading to reproductive isolation and evolution of new species.
100%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
0%
b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
0%
c) Assertion is true but Reason is false.
0%
d) Both Assertion and Reason are false.
Q.50.
From the given data characteristics identify the correct pre – historic man: (i) They were about 1.8m tall with well built body. (ii) Broad and arched forehead and also well developed chin. (iii) They could walk and run faster. (iv) They made excellent tools and cave paintings.
100%
a) Cro-Magnon man.
0%
b) Tuang baby and Lucy.
0%
c) Pithecanthropus erectus.
0%
d) Tool maker.
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