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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Prototherians are the most primitive mammals. They are confined to the oriental realm.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - C | |
| 202. |
Which one of the following is the most primitive ancestor of man?A. Homo habilisB. AustralopithecusC. Ramapithecus punjabicusD. Homo neanderthalensis |
| Answer» Correct Answer - C | |
| 203. |
Stanley Miller performed an experiment to prove the origin of life. He took gases ammonia and hydrogen along with nitrogen.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - C | |
| 204. |
Which of the following primitive man built up dwelling huts and buried the bodies after death?A. Neanderthal manB. Java manC. Cro-Magnon manD. Peking man |
| Answer» Correct Answer - A | |
| 205. |
Which of the following is the most primitive ancestor of man?A. Java manB. Homo habilisC. Neanderthal manD. Australopithecus |
| Answer» Correct Answer - D | |
| 206. |
DNA fingerprinting is also known as genetic fingerprinting. It was developed by James Watson, the first director of human genome project.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - C | |
| 207. |
The primitive atmosphere was reducing in nature. Free oxygen was absent in the primitive atmosphere.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - A | |
| 208. |
Human male is sex chromatin positive. Barr body is formed by the genetic inactivation of one of the Y -chromosomes.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - D | |
| 209. |
A Turner syndrome individual would be expected to have no Barr body. Her sex chromosome consitution is XO.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - A | |
| 210. |
Fossil if Neanderthal Man was first discovered inA. 1856B. 1868C. 1924D. 1994 |
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Answer» Correct Answer - A Birth and Death of stars. A cloud of gas (Hydrogen , Helium) and dust is formed. Initially the temperature is low (`-173^(@)C` to `-263^(@)C`). Gravitational attraction brings about contractoin of the cloud. The dense ball of gas and dust is now called protstar. the core part of protostar begins to become hot due to collision of particles. Ultimately the temperature reaches `10^(7).^(@)C` when nuclear fusion converts hydrogen into helium releasing a lot of energy. Protostar new begins to glow and changes into star. In star a delicate balance is maintained between gravitational and internal pressure due to release of energy. Sun is a balanced star. As most of core hydrogen is changed into helium, nuclear fusions stop in the central core part. The core shrinks and its density increase numerous fold converting helium into carbon and oxygen. Hydrogen continuous to undergo nuclear fusion onthe outside of the occure but at a much faster rate that increases expnasion of the outer mass which begins to glow red. The star is now called red giant. Star Mia is present in the red giant stage. Its mass is equal to that of our sun but is at present so big that it can accomodate 100 million star. If the mass of red gaint star is about equal to or less than that of sun,the outer gaseous part disapeares slowly while the core condenses further into very heavy hot ball called white dwarf. Ultimately it will cool down. A piece of white dwarf equal to size of sugar cube may weight 1 tonne or 1000 kg on earth. However, if red giant start has mass much higher than that of sun, different events occur. The core comes to have carbon, oxygen, neon, silicon and iron. Energy librated outside the core is enormous. It explodes the outer mass. The exploding star is called supernova. It emits light billion times bright than sun because it liberates energy per second equal to energy radiated by sun in 100 years. Consequently, the sky will remain lighted up for several days, will remains lighted up for several days. Supernova has been recorded by our prodecessors in `185` A.D. 386, 393, 1006, 1181, 1572 and 1604 A.D., A supernova from an adjacent galaxy was recorded on 24 Feb. 1987. The iron of supernova continuous to contract whereby electrons and protons of the atoms combine to form neutrons. The core is now changed into neutrons star which is only 20-20 km across but very heavy with a pinhead of its matter weighing `10^(6)` tonnes. A neutrons star rotates very fast and emits electric signals or pulse. it is therefore,also called plusar. |
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| 211. |
The first human fossil discovered in 1856 was:A. Java manB. Peking manC. Neanderthal manD. Australopithecus |
| Answer» Correct Answer - C | |
| 212. |
Fossil of Neanderthal man was discovered by:A. C. FuhlrottB. Mac GregorC. Raymond DartD. Eugene Dubois |
| Answer» Correct Answer - A | |
| 213. |
Homo erectus eretus is scientific name ofA. Java ManB. Peking Man.C. Cro-Magnon ManD. Neanderthal Man. |
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Answer» Correct Answer - A Radioactivity in Our Body. A very small quantity of Carbon-14 and Potassium-40 occurs in our body. Every second some 1200 atoms of Carbon-14 and 38000 atoms of Potassium-40 explode in our body. |
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| 214. |
Human evolution is related toA. Development of brainB. Migratory habitC. Omnivorous dietD. All of the above. |
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Answer» Correct Answer - A Stratigraphy. Branch of geology connected with study of stratified or sedimentry rocks. |
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| 215. |
Cromagnon Man differs from Neanderthal Man in havingA. BrachiasmB. Smaller jawsC. Larger jawsD. Cannibalism. |
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Answer» Correct Answer - B Netural Radioactivity. Elements from Polonium (atomic number 84) to Uranium (atomic number 92) are naturally radioactive. Radiosotopes occur of some lighter elements as wel, e.g., `.^(14)C, .^(40)K`. |
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| 216. |
Study the diagrams given below. These indicate: A. analogyB. homologyC. adaptive radiationD. convergent evolution |
| Answer» Correct Answer - C | |
| 217. |
The drama of human evolution was dramatised inA. Asia and JavaB. China and AsiaC. Africa and JavaD. Asia and Africa. |
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Answer» Correct Answer - D Polumerase Chain Reaction (PCR). Reation of 1989. Discovered by Karry Mullis (Nobel Prize in 1993). Useful for selective amplification of specific DNA sogement. |
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| 218. |
Neanderthal man differs from modern man inA. Receding jawsB. Protruding jawsC. Could make good toolsD. Could make good pictures. |
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Answer» Correct Answer - B Gene Amlification. (Polymerase chain Reaction or PCR). It is a technique of in vitro repeated duplication of selected intact or broken DNA. Million of copies of selected DNA can be made within or few hours. It requires sample DNA, primers, nucleotides and polymerases. Thermostable DNA polymerase or Taq polymerase of thermophilic bacterium Thermus aquaticus is used. The mixture is heated (for separation of two DNA starands ) and cooled (for DNA replication) alternatively. The whole cycle takes 30 minutes. The process is repeacted a few times. By using this technique, DNA of a dead man was amplified and analysed to find HIV in his cells. |
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| 219. |
Identify the figures of the skull A to C: A. A. Modern human being, B. Adult chimpanzee, C. Baby chimpanzee.B. A. Baby chimpanzee, B. Modern human being, C. Adult chimpanzee.C. A. Modern human being, B. Baby chimpanzee, C. Adult chimpanzee.D. A. Adult chimpanzee, B. Baby chimpanzee, C. Modern human being. |
| Answer» Correct Answer - C | |
| 220. |
The skull of Pitecanthropus was found inA. AfricaB. JavaC. AmericaD. All. |
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Answer» Correct Answer - B Repeated Genes. Genes occurring in multiple copies or having variant repetition are called repeated genes, e.g., histone genes, tRNA, 5SRNA genes , actin genes, snRNA genes, heat shock protein genes. |
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| 221. |
Which change is irrelevant in connection with evolution of man?A. Increase in ability to communicate with others and develop community behaviourB. Change of diet from hard nuts and hard roots to soft foodC. Perfection of hands for tool makingD. Loss of tail |
| Answer» Correct Answer - B | |
| 222. |
Which one is irrelevant to evolution of man?A. Perfection of hand for tool makingB. Change of diet from hard nuts/roots to soft foodC. Increased ability to communicate or develop community behaviourD. Loss of tail. |
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Answer» Correct Answer - D Ethnography. Study of living cultures using anthropological techniques. |
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| 223. |
Cranial capacity of Modern Man isA. `450-650 c c`B. `600-1000 c c `C. `900-1100 c c`D. `1200-1600 c c` |
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Answer» Correct Answer - D Ethnoarchaeology. Study of human hebaviour and material culture of different societies for evaluating archaeological record. |
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| 224. |
Which of the fossil man had cranial capacity near to modern man ?A. AustralopithecusB. NeanderthalC. Homo erectusD. Sinanthropus |
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Answer» Correct Answer - B Pseudogenes. They are genes which exhibit a lot of homology with functional genes but are unable to produce due to numerous changes. For example, snRNA determining DNA regions have 10 times more pseudogenes tha the functional genes. |
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| 225. |
There has been much controversy over human evolution The fossil evidence of human evolution is patchy.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - A | |
| 226. |
A baby has been born with a small tail. It is a case exhibiting retrogressive evolution.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - C | |
| 227. |
The age of fossil of Dryopithecus on the geological time scale is:A. `75xx10^(6)`B. `50xx10^(6)`C. `25xx10^(6)`D. `2.5xx10^(6)` |
| Answer» Correct Answer - C | |
| 228. |
Consider the following statements. A. The geological history of Earth has no relation with the biological history of Earth. B. Theoretically population size will grow exponentially if everybody reproduced maximally. C. Hugo de Vries based on his work on evening primrose brought forth the idea of mutations. D. The essence of Lamarckian theory about evolution is natural selection. Of the above statements:A. B and C are correctB. B and D are correctC. A and B are correctD. A and D are correct |
| Answer» Correct Answer - A | |
| 229. |
No two members of a population are exactly identical. Individuals inherit different combinations of alleles and genotypes.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - A | |
| 230. |
As per geological time scale, hominids evolved during:A. MioceneB. PlioceneC. OligoceneD. Pleistocene |
| Answer» Correct Answer - B | |
| 231. |
Latimeria (Coelocanth fish) is an example of living fossil. It underwent little change during long geological period.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - A | |
| 232. |
Man mainly differs from other anthropoids in large cranial capacity and high intelligence. Man has erect posture and free hands.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - B | |
| 233. |
For the MN-blood group system. The frequencies of M and N alleles are 0.7 and 0.3, respectively. The expected frequency of MN-blood group bearing organisms is likely to beA. `49%`B. `42%`C. `9%`D. `58%` |
| Answer» Correct Answer - B | |
| 234. |
Variations during mutations of meiotic recombinations areA. random and smallB. random and directionalC. random and directionlessD. random, small and directional |
| Answer» Correct Answer - C | |
| 235. |
Appearance of antibiotic-resistant bacteria is an example ofA. transductionB. adaptive radiationC. divergent evolutionD. pre-existing variation in the population |
| Answer» Correct Answer - D | |
| 236. |
In common Turtles the females predominant atA. Below `28^(@)C`B. Above `33^(@)C`C. Between `28^(@)-33^(@)C`D. Sex is genetically determined. |
| Answer» Correct Answer - B | |
| 237. |
Colour blindness is a well known sex linked disease. It is caused by a mutant gene on Y -chromosome.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - C | |
| 238. |
Human X -chromosome is small and acrocentric. It is present in females as well as males.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - B | |
| 239. |
Frequency of Down syndrome increases when maternal age is above 35 years. In aged mother nondisjunction of 21st chromosome during oogenesis occurs more frequently.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - A | |
| 240. |
Deletion is a chromosomal mutation involving the loss of a segment of a chromosome. Drown syndrome results from the deletion of a part of human chromosome 21.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - C | |
| 241. |
Somatic mutation is not heritable. It occurs in nonreproductive cells.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - A | |
| 242. |
Assertion: Among the primates, chimpanzee is is the closest relative of the present day humans. Reason : The banding pattern in the autosome numbers 3 and 6 of man and chimpanzee is remarkably similar.A. Both (A) and (R ) are true and the (R ) is the correct explanation of the (A)B. Both (A) and (R ) are true but the (R ) is not the correct explanation of the (A)C. (A) is true statement but (R ) is falseD. Both (A) and (R ) are false |
| Answer» Correct Answer - A | |
| 243. |
Proconsuls are ancestore ofA. Apes onlyB. man onlyC. Both A and BD. All primates. |
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Answer» Correct Answer - C Interoparity. It is repeated reproduction at intervals in the life cycle like polycarpy in plants (trees, shrubs), e.g., most vertebrates. |
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| 244. |
Wings of insects and birds are analogous organs. These organs illustrates divergent evolution.A. If both (A) and (R ) are true and (R ) is the correct explanation of (A).B. If both (A) and (R ) are true but (R ) is not the correct explanation of (A).C. If (A) is true but (R ) is false.D. If both (A) and (R ) are false. |
| Answer» Correct Answer - C | |
| 245. |
Which of the following is used an atomospheric pollution indicator?A. LichensB. LepidopteraC. LycopersiconD. Lycopodium |
| Answer» Correct Answer - A | |
| 246. |
The theory of spontaneous generation stated thatA. life arose from living forms only.B. life can arise from non-living things only.C. life can arise from both living and non-living.D. life arises spontaneously, neither from living nor from the non-living. |
| Answer» Correct Answer - B | |
| 247. |
Carbon dating was inverted byA. Kamen et alB. LibbyC. Ruben and KamenD. Calvin. |
| Answer» Correct Answer - B | |
| 248. |
An instrument which measures concentration of `C-14` directly isA. Accelerator mass spectometerB. SpectroscopyC. Geiger counterD. All the above. |
| Answer» Correct Answer - A | |
| 249. |
Prefoetal globin isA. `zeta_(2)epsi_(2), alpha_(2)beta_(2), zeta_(2)gamma_(2)`B. `zeta_(2)epsi_(2), zeta_(2)gamma_(2), alpha_(2)beta_(2)`C. `zeta_(2)epsi_(2), zeta_(2)gamma_(2), alpha_(2)gamma_(2)`D. `alpha_(2)beta_(2), alpha_(2)del_(2), alpha_(2)gamma_(2)` |
| Answer» Correct Answer - B | |
| 250. |
Every second, human body converts carbon-14 atoms into `C-12` atomsA. 10B. 100C. 1200D. 3800 |
| Answer» Correct Answer - C | |