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1.

Which of the following organometallic compound is `sigma` and `pi`-bonded?A. `[Fe(eta^(5)-C_(5)H_(5))_(2)]`B. `K[PtCl_(3)(eta^(2)-C_(2)H_(4))]`C. `[Co(CO)_(5)NH_(3)]^(+2)`D. `Fe(CH_(3))_(3)`

Answer» Correct Answer - C
2.

Here is the figure depicting annual variations in temperature and precipitation for different biomes. Fit in the correct match from the list :- Temperate forest (2) Tropical forest (3) Taiga forest (4) Grassland (5) Desert (6) Arctic and alpine tundraA. A-5,B-4, C-2, D-3, E-6, F-1B. A-4, B-5, C-2, D-3,E-6 ,F-1C. A-5,B_4,C-2,D-1,E-6,F-3D. A-4,B-5,C-2,D-1,E-6,F-3

Answer» Correct Answer - B
3.

A thalidomide drug was prescribed during pregnancy to ease morning sickness but it may eros the placenta and on reaching into foetus may cause deformity in foetus. Which of the following abnormality mainly occurs :-A. PhocomaliaB. Liver chirrhosisC. OrchitisD. Cleff palate

Answer» Correct Answer - A
4.

How many structures in the list given below are haploid? Spermatid, secondary oocyte, primary spermatocyte, ovum, sperm, oogonia, spermatogonia, polar bodyA. SixB. fourC. twoD. five

Answer» Correct Answer - D
5.

Earth is an open system for:A. MineralsB. EnergyC. GasesD. Water

Answer» Correct Answer - B
6.

Sum total of all the ecosystems present on earth, is called as :-A. BiomeB. BiosphereC. Global ecosystemD. Both 2 and 3 given above

Answer» Correct Answer - D
7.

FOAM, are concerned with :A. EutrophicationB. Integrated waste water treatmentC. BiomagnificationD. Remedy for solid waste

Answer» Correct Answer - B
8.

Full form of IUCN :-A. International union for conservation of nature & natural resourcesB. Indian union for conservation of nature & Natural resourcesC. International union for conservation environmentD. Indian union for conservation nature

Answer» Correct Answer - A
9.

Find out the correct match from the following match:- A. i and iiB. ii onlyC. ii and iiiD. i only

Answer» Correct Answer - B
10.

Which of the following drug is not a opioid ?A. SmackB. HeroinC. HashishD. Morphine

Answer» Correct Answer - C
11.

Identify the incorrect statement :-A. A population has built-in variations in characteristics.B. Mutations are discontinuous source of variations.C. Fitness is the end result of the ability to adapt and get selected by nature.D. Evolution is not a stochastic process.

Answer» Correct Answer - D
12.

Which statement is/are correct ? (a) Ecology is a subject which studies the interaction among organisms and between the organisms with its physical (abiotic) environment. (b) Ecology is a subject which studies the interaction between physical factors (abiotic) environment. Ecology is a subject which studies the interaction between the organism with its biotic environment only (d) Ecology is a subject which studies the interaction between organisms and its biotic and physical (abiotic) environmentA. Only d are correctB. Only a are correctC. a and d are correctD. a, b, c, d are correct

Answer» Correct Answer - C
13.

Which of the following is correctly matched :-A. Mendelism - Genetics of haploidB. Polydactyly - X-linked dominantC. Blood group - More than two forms of a geneD. Lethal gene - 1 : 2 : 1 Correct

Answer» Correct Answer - C
14.

Mango tree do not and cannot grow in Canada and Germany because, they are :-A. EurythermalB. StenothermalC. ThermoregulatorsD. Both 1 and 3

Answer» Correct Answer - B
15.

Given below, is a typical agarose gel in which electrophoresis had occurred. In this agarose gel:A. Lane–1 shows migration of digested DNA fragmentsB. Only Lane–4 shows migration of digested DNA fragmentsC. Lane–2 to 4 shows migration of digested set of DNA fragmentsD. Wells are always placed towards positive electrode during electrophoresis

Answer» Correct Answer - C
16.

If hybrids are made into apomicts, then :-A. Characters may be segregate in the hybrid progeny.B. Hybrid will show inferior characters only.C. There is no segregation of characters in the hybrid progeny.D. Hybrid seeds will not develop into hybrid plants.

Answer» Correct Answer - C
17.

Identify the correct match from column-I and column A. I -b, ii -a, iii -d, iv -cB. i -c, ii -a, iii -d, iv -bC. i -c, ii -d, iii -a, iv -bD. i -c, ii -b, iii -d, iv -a

Answer» Correct Answer - B
18.

The flowchart given below represent the process of recombinant technology. Identify A to D. A. A-restriction endonuclease, B-restriction exonuclease, C-RNA ligase, D-TransformationB. A-restriction endonuclease B-restriction endonuclease, C-DNA ligase, D-transformationC. A-Restriction exonuclease B-restriction endonuclease, C-DNA polymerase, D-transductionD. A-restrictionendonuclease, B-restriction endonuclease, C-DNA polymerase, D-Transformation

Answer» Correct Answer - B
19.

What is the ploidy of primary endosperm nucleus in Capsella :-A. TetraploidB. DiploidC. TriploidD. Pentaploid

Answer» Correct Answer - C
20.

The part of fallopian tube, closer to the ovary is the funnel shaped called :-A. FimbriaeB. InfundibulumC. IsthmusD. Interstitial part

Answer» Correct Answer - B
21.

Competitive exclusion principle was given byA. GauseB. TansleyC. Robert MayD. Edward Wilson

Answer» Correct Answer - A
22.

If decomposers are completely removed from ecosystem the ecosystem functioning is badly affected becasue:-A. Herbivores will not receive Solar energyB. Rate of decomposition of other components will be very highC. Mineral movement will be blockedD. Energy flow will be blocked

Answer» Correct Answer - C
23.

Tapetum isA. Inner nutritive layer that degenerates at maturity of antherB. Inner nutritive layer that persists at maturity of antherC. Outer nutritive layer that persists at maturity of antherD. Outer nutritive layer that degenerates at maturity of anther

Answer» Correct Answer - A
24.

Developmental history of a species is also known as :-A. OntogenyB. PhylogenyC. NeotanyD. Atavism

Answer» Correct Answer - B
25.

Select the intermediate in the following reaction mechansim : `O_(3(g)) hArr O_(2(g)) + O(g)` `O_((g)) +O_(3(g)) to 2O_(2(g))`A. `O_(3(g))`B. `O_((g))`C. `O_(2(g))`D. None of these

Answer» Correct Answer - B
26.

Natural selection operates atA. OrganismB. PopulationC. CommunityD. Ecosystem

Answer» Correct Answer - B
27.

The four (A, B, C and D) given about the Indian map find out the reserved area and conserved animal : A. A-c-iv-Q, B-d-i-R, C-a-iii-P, D-b-ii-SB. A-c-iv-Q, B-b-i-P, C-d-ii-R, D-a-iii-SC. A-d-i-S, B-c-ii-Q, C-b-iii-R, D-a-iv-PD. A-a-i-S, B-b-ii-R, C-c-iii-Q, D-d-iv-P

Answer» Correct Answer - B
28.

The first mammals were like a :-A. ShrewB. CrocodileC. MonkeyD. Seal

Answer» Correct Answer - A
29.

In given ECG, end of T-wave marks A. End of ventricular diastoleB. End of ventricular systoleC. Contraction of both atriaD. Pulse

Answer» Correct Answer - B
30.

Which one of the following is not used to increase soil fertility ?A. Bacillus thuringiensisB. Vigna sinensisC. RhizobiumD. Azotobacter

Answer» Correct Answer - A
31.

What is the function of methylase enzyme in E.coli-A. Added methyl group to bacteriophage DNAB. Added methyl group to bacterial DNAC. Added ethyl group to bacterial DNAD. Cutting of bacterial DNA

Answer» Correct Answer - B
32.

A and B indicate :A. `A-BOD , B-DO `B. `A-DO , B-BOD `C. `A-DO , B-CO​_(2)`D. `A-CO​_(2)​ , B-BOD `

Answer» Correct Answer - B
33.

Which of the following is not true regarding the use of transgenic animals ?A. In study of normal physiology and developmentB. Understanding of development of diseasesC. `alpha`-1 antitrypsin can be synthesised using themD. Toxicity testing in such animals is possible but it takes much time

Answer» Correct Answer - D
34.

Why predators in nature are prudent ?A. They keep prey populations under control.B. They maintain species diversity.C. Act as a conduitsD. Predator is too efficient but never over exploits its prey.

Answer» Correct Answer - D
35.

When we are looking at star into a clear night sky, we are actually peeping into past, Above sentence indicates thatA. we can go into the past,B. Distance between earth and stars is very largeC. In past earth was also a gaseous cloudD. In future earth will become star

Answer» Correct Answer - B
36.

The process of converting hydrated Alumina into anhydrous Alumina is calledA. CalcinationB. RoastingC. SmeltingD. Concentration

Answer» Correct Answer - A
37.

Which is most reactive acid derivatives?A. `R-COCl`B. `(RCO)_(2)O`C. `RCOOR`D. `RCONH_(2)`

Answer» Correct Answer - A
38.

How many moles of AgCl is precipitated, when excess of `AgNO_(3)` is added to the one mole of `CoCl_(3) .4NH_(3)` (green) :A. 1B. 3C. 2D. 4

Answer» Correct Answer - A
39.

The hybrid states of central atom in diborane, diamond and graphite are respectively :-A. `sp^(2),sp^(3),sp^(2)`B. `sp^(3),sp^(3),sp^(2)`C. `sp^(3),sp^(3),sp^(2)`D. `sp,sp^(2),sp^(3)`

Answer» Correct Answer - B
40.

The bonds present in borazole are:A. `12 sigma, 3 pi`B. `9 sigma, 6 pi`C. `6 sigma , 6 pi`D. `9 sigma , 9 pi`

Answer» Correct Answer - A
41.

How many coulombs are required for the oxidation of 1 mol of `H_(2)O_(2)` ?A. `9.65xx10^(4)` CB. 9300 CC. `193xx10^(5)C`D. `19.3xx10^(2) C`

Answer» Correct Answer - C
42.

How many P-O-P bonds are present in `P_(4)O_(10)` ?A. 4B. 2C. 6D. 10

Answer» Correct Answer - C
43.

Correct order of oxidising strength isA. `HClO_(4) gt HClO_(3) gt HClO_(2) gt HOCl`B. `HOCl gt HClO_(2) gt HClO_(3) gt HClO_(4)`C. `HClO_(2) gt HOCl gt HCLO_(3) gt HClO_(4)`D. `HClO_(3) gt HClO_(4) gt HOCl gt HClO_(2)`

Answer» Correct Answer - B
44.

In the Iso-electronic series of metal carbonyls, the C-O bond strength is expected to increase in the order:-A. `[Mn(CO)_(6)]^(+1) lt [Cr(CO)_(6)] lt [V(CO)_(6)]^(-1)`B. `[V(CO)_(6)]^(-1) lt [Cr(CO)_(6) ] lt [Mn(CO)_(6)]^(+1)`C. `[V(CO)6]^(-1) lt [Mn(CO)_(6)]^(+1) lt [Cr(CO)_(6)]`D. `[Cr(CO)_(6)] lt [Mn(CO)_(6)]^(+1) lt [V(CO)_(6)]^(-1)`

Answer» Correct Answer - B
45.

AIDS is caused by HIV. Among the following, which one in not a mode of transmission of HIV ?A. Transfusion of contaminated bloodB. Sharing the infected needlesC. Shaking hands with infected prersonsD. Sexual contact with infected persons

Answer» Correct Answer - C
46.

When DNA is transcribed into mRNA, usually the mRNA remained single stranded, but in some cases a RNA can be made that is complementary to the mRNA. This is called ......... and its main function is to ......:-A. Antisense RNA, block gene expressionB. Antisense RNA, amplify mRNAC. Antisense RNA, enhance translationD. Reverse transcription, enhance translation

Answer» Correct Answer - A
47.

In Drosophila, the yellow body colour gene (y) and white eye colour gene (w) showed 1.3% recombination while white eye colour gene (w) and miniature wing gene (m) showed 37.2% recombinations. This indicates that :-A. w and m are on different chromosomesB. w and m are tightly linked than w and yC. w and y are on the same chromosome while m is on a diffferent chromosomeD. w and y are tightly linked than w and m Correct

Answer» Correct Answer - D
48.

Which of the following leads to points mutation?A. InsertionB. DeletionC. SubstitutionD. All of the above

Answer» Correct Answer - D
49.

Consider area A, B and C. If x, y and z are the bird species and1, 2 and 3 are mammal species. Read the statement (a-d) :- (a) The area C contain highest species diversity. (b) The area B have less species diversity than area A (c) The area B have highest species diversity (d) The area B have more species diversity than area A. How many statements is/are correct?A. FourB. ThreeC. TwoD. One

Answer» Correct Answer - C
50.

Which of the following is an example of mutation breeding ?A. Sonora-64B. JayaC. Pusa lermaD. Oryza nivara

Answer» Correct Answer - C