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151.

Which of the following pianets is called "twin of the Earth"?A. MarsB. PlutoC. VenusD. Mercury

Answer» Correct Answer - C
152.

Which of the following planets is supposed to have life?A. MarsB. JupiterC. MecuryD. Neptune

Answer» Correct Answer - A
According to John Connerney (1999) Mars and Earth were like freternal twins created 4.5 billion years ago. Plate tectonics on the surface of the Red Planet supports the presence of water and ancient life.
153.

Which of the following planets is supposed to have life?A. MarsB. MercuryC. UranusD. Pluto

Answer» Correct Answer - A
154.

A. I. Oparin was a:A. Polish biologistB. Russian biochemistC. Belgian nutritionistD. Swedish consmologist

Answer» Correct Answer - B
155.

The sum and planets formed from :A. aggregate of uraniumB. collision of meteoritesC. division of pre-existing starsD. cloud of cosmic dust and gases

Answer» Correct Answer - D
156.

What did Miller obtain from his experiment simulating conditions of early earth?A. Amino acidsB. Organic acidsC. PeptidesD. All the above

Answer» Correct Answer - D
157.

Who performed an experiment to prove that organic compounds were the basis of life?A. CalvinB. MillerC. OparinD. Melvin

Answer» Correct Answer - B
158.

Earth originated in the past period of aboutA. 4.5 billion yearsB. 8.0 billion yearsC. 3 billion yearsD. 1 billion years

Answer» Correct Answer - A
159.

Experimental to prove that synthesis of organic compounds formed the basis of origin of life was performed byA. OparinB. HaldaneC. MillerD. Fox

Answer» Correct Answer - C
160.

In the ancient atmosphere, free nitrogen, exygen and carbon dioxide were not present becauseA. of the large amount of hydrogen and high temperatureB. carbon would have combined with hydrogen to form methaneC. any free oxygen would have combined with iron, silicon,D. All of the above

Answer» Correct Answer - D
161.

Temperature in the interior of the sun is `200000000^(@) C`, the reason for this high temperature isA. Various ex othermic reactions are taking placeB. Fusion reactions converting hydrogen of sun to heliumC. Collision of particles releasing energyD. None of the above

Answer» Correct Answer - B
162.

Mark the correct statement.A. L Spallanzani stated that air carried microorganismsB. Father Saurez discarded the view of special creationC. L Pasteur did his experiments on fleshD. F Reddi put forward the theory of special creation

Answer» Correct Answer - A
163.

Mark the correct statement:A. L. Pasteur did his experiments on flesh.B. F. Redi proposed the theory of special creation.C. Father Suarez discarded the view of special creation.D. L. Spallanzani stated that air carried microorganisms.

Answer» Correct Answer - D
164.

Assertion (A) : Coacervates are belives to bethe precursors of life. Reason (R ) Coacervates were selt-duplicating aggregates of proteins surrounded by liquid molecules.A. Both (A) and ( R) are true and (R ) is the correct explanations of (A)B. Both (A) and ( R) are true but (R ) is the correct explanations of (A)C. (A) is true statement but (R )is falseD. Both (A) and (R ) are false

Answer» Correct Answer - C
165.

Microspheres possessed a membrane ofA. Lipid and proteinB. LipidC. CabohydratesD. Fats

Answer» Correct Answer - B
166.

Coacervates were experimentally produced byA. Uery and millerB. Jacob and MonodC. Fischer and HuxleyD. Sidney Fox and Oparin

Answer» Correct Answer - D
167.

Conacervates containing nucleprotein, surrounded by several nutritive substance and covered by a surface membrane represent :A. pre-cellsB. liposomesC. post-cellsD. microspheres

Answer» Correct Answer - A
168.

The expanse of Akash Ganga isA. 1 light yearB. 100 light yearsC. 10,000 light yearsD. 100,000 light years.

Answer» Correct Answer - D
169.

Assertion:After the appearance of oxygen in the atmosphere, methane and ammonia began to disappear.Oxygen is involved in forming ozone layer.A. Both Assertion and Reason are true and Reason is the correct explanation of AssertionB. Both Assertion and Reason are true, but Reason is not the correct explanation of AssertionC. Assertion is true, but Reason is falseD. Assertion is false, but Reason is true

Answer» Correct Answer - B
(b) With the addition of oxygen into the atmosphere, methane and ammonia began to disappear as they got oxidised forming carbond dioxide and nitrogen, respectively. These events ultimately transformed the ancient reducing, oxygen free atmosphere into the modern oxidising atmosphere with plenty of free oxygen. As more oxygen accumulated in the atmosphere. Ozone began to appear in the top layers. It developed in the presence of high energy radiations.
170.

Universe originated about 15 billion year ago byA. A thermonuclear explosionB. FusionC. GravityD. Destruction of atmosphere

Answer» Correct Answer - A
171.

Earth completes one orbit around the sun isA. 365 days 5 hrs 48 min and 46 secB. 365 days 1 hrs 22 min and 3 secC. 364 days 22 hrs 58 min and 39 secD. 364 days 23 hrs 48 min and 51 sec

Answer» Correct Answer - A
172.

Planet nearest to sun isA. EarthB. MoonC. MercuryD. Mars

Answer» Correct Answer - C
173.

Which planet is farthest to Sun ?A. UranusB. SaturnC. JupiterD. Neptune

Answer» Correct Answer - D
174.

Red Planet isA. MarsB. JupiterC. VenusD. Uranus

Answer» Correct Answer - A
175.

Which of the following type of sugar was present in turbid red liquid?A. Straight chain sugarsB. PentosesC. HexosesD. All of these

Answer» Correct Answer - D
176.

Apart from miller and Urey, who produced complex compounds from simpler compounds to prove theory of physico-chemical evolution?A. FoxB. DobzhanskyC. CalvinD. Both (a) and (c)

Answer» Correct Answer - D
177.

The basic components of atomsphere of primitive Earth were:A. ammonia, methane and waterB. methane, ozone,nitrogen and waterC. hydrogen,nitrogen ,methane and warerD. ammonia, methane hydrogen and water

Answer» Correct Answer - D
178.

Which was not present in primitive atomsphere?A. `CH_(4)`B. `NH_(3)`C. WaterD. None of these

Answer» Correct Answer - D
179.

According to Oparin, which one of the following was not present in the primitive atomsphere of the Earh?A. OxygenB. MethaneC. HydrogenD. Water vapour

Answer» Correct Answer - A
180.

Most advanced theory of origin of life is that ofA. CatastrophicB. Haldane and OparinC. CosmozoicD. Spontaneous.

Answer» Correct Answer - B
181.

Chemical theory of origin of life was given by:A. SpallananzaniB. Louis PasteurC. Stanley MillerD. Oparin and Haldane

Answer» Correct Answer - D
182.

The theory which explains the origin of life and is based upon experiments is :A. biogenesisB. catastrophismC. abiogenesisD. chemical theory

Answer» Correct Answer - D
183.

The process of destroying all living orfanisms is called:A. sanitationB. immumnizationC. sterilizationD. pasteurization

Answer» Correct Answer - C
Sterilization is a techinque for destroying microorganisms using heat, water , chemicals or gases.
184.

The principle of sterilization is based on experiments carried out by :A. L. pasteurB. S.L. MillerC. Van HelmoutD. A.I. Oparin

Answer» Correct Answer - A
185.

A compound important in prebiotic evolution wasA. `SO_(2)`B. `CH_(4)`C. NOD. `SO_(3)`

Answer» Correct Answer - B
186.

The oldest fossil cells reseble:A. AmoebaB. Red algaeC. Autotrophic bacteriaD. Heterotrophic becteria

Answer» Correct Answer - D
187.

Who said "abiogenesis first but biogenesis ever since"?A. HaldaneB. PasteurC. FoxD. Oparin

Answer» Correct Answer - D
188.

The oldest known fossil cells are about the size of :A. RibosomesB. Modern prokaryotesC. Human skin cellsD. Amoeba

Answer» Correct Answer - B
189.

The oldest fossil cells reseble:A. Heterotrophic bacteriaB. Autotrophic bacteriaC. green algaeD. red algae

Answer» Correct Answer - A
190.

The oldest eukaryotic fossil is :A. 3.5 billion years oldB. 2.5 billion years oldC. 1.5 billion years oldD. 0.5 billion years old

Answer» Correct Answer - C
191.

The oldest eukaryotic fossil is :A. 1.5 billion years oldB. 3.5 billion years oldC. 2.5 billion yearsoldD. 600 million year old

Answer» Correct Answer - A
192.

Louis Pasteur provided proof in support of biogenesis inA. 1862B. 1872C. 1882D. 1892

Answer» Correct Answer - A
193.

Oparin and Haldane proposed:A. Theory of natural selectionB. That mutation caused speciationC. That migration affects genetic equillibriumD. That the first form of life could have come molecules or (E) That evolution of life forms had been driven by use and disuse of organs.

Answer» Correct Answer - D
194.

Oparin and Haldane proposed:A. (a) theory of natural selectionB. (b) that mutation caused speciationC. that migration affects genetic equilibriumD. (d) that the first form of life could have come from pre-existing non-living organic molecules(e) that evolution of life forms had been driven by use and disuse of organs

Answer» Correct Answer - D
195.

The prebiotic atomsphere of the Earth was of a reducing nature. It was transformed into an oxidixing atomsphere of present day due to the emergence of :A. angiospermsB. cyanobacteriaC. eukaryotic algaeD. photosynthetic bacteria

Answer» Correct Answer - B
196.

According to Oparin, which one of the following was not present in the primitive atmospehre of the earth?A. only IB. only IVC. II and IVD. II and III

Answer» Correct Answer - D
197.

The oldest fossil record of blue-green algae is 2.9 billion years old. It isA. StromatolitesB. ArchaeopteryxC. ArchaeoshpheroidesD. Chlamydomonas

Answer» Correct Answer - C
198.

The oldest known fossibls are from rock that is :A. 3.5 billion years oldB. 4.5 billion years oldC. 2.7 billion years oldD. 2.3 billion years old

Answer» Correct Answer - A
199.

Which of the folowing is known as oldest living fossil?A. EubacteriaB. ArchaebacteriaC. ProtozoaD. Eukaryotes

Answer» Correct Answer - B
200.

By shaking protein and carbohydrate mixture in water Oparin obtainedA. CoacervatesB. MicrospheresC. VesiclesD. Both A and B

Answer» Correct Answer - A