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InterviewSolution
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.
| 601. |
Consider the following statements conerning food chains (i) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation (ii) Removal of most of the carnivores resulted in an increased population of deers (iii) The length of food chains is generally limited to 3 - 4 trophic levels due to energy loss (iv) The length of food chains may vary from 2 to 8 trophic levels Which two of the above statements are correct?A. (i), (iv)B. (i), (ii)C. (ii), (iii)D. (iii), (iv) |
| Answer» Correct Answer - C | |
| 602. |
If the dimension of a physical quantity are given by `M^a L^b T^c,` then the physical quantity will beA. Force if a = 0, b = –1, c = –2B. Pressure if a = 1, b = –1, c = –2C. Velocity if a = 1, b = 0, c = –1D. Acceleration if a = 1, b = 1, c = –2 |
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Answer» Correct Answer - B `[P]=(F)/(A)=[(MLT^(-2))/(L^(2))]=[ML^(-1)T^(-2)]` |
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| 603. |
A particle starts its motion from rest under the action of a constant force. If the distance covered in first `10 s` is `s_1` and the covered in the first `20 s` is `s_2`, then.A. `S_(2)=S_(1)`B. `S_(2)=2S_(1)`C. `S_(2)=3S_(1)`D. `S_(2)=4S_(1)` |
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Answer» Correct Answer - D `s=(1)/(2)at^(2)` ltbtgt `(s_(2))/(s_(1))=((20)/(10))^(2)=4` `s_(2)=4s_(1)` |
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| 604. |
Which one of the following pairs is not correctly matchedA. Vitamin C – ScurvyB. Vitamin `B_2` – PellagraC. Vitamin `B_12` – Pernicious anaemiaD. Vitamin `B_6` – Beri-beri |
| Answer» Correct Answer - D | |
| 605. |
Lights of two different frequencies whose photons have energies 1 and 2.5 eV, respectively, successively illuminate a metal whose work function is 0.5 eV. The ratio of the maximum speeds of the emitted electronsA. `1:2`B. `1:1`C. `1:5`D. `1:4` |
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Answer» Correct Answer - A `v_("max")=sqrt((2)/(m)(KE_("max")))=sqrt((2)/(m)(E_(Ph)-W))` `(v_(1))/(v_(2))=sqrt((1-0.5)/(2.5-0.5))=sqrt((0.5)/(2))=1:2` |
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| 606. |
Two metallic spheres of radii `1 cm` and `2 cm` are given charges `10^(-2) C` and `5 xx 10^(-2) C` respectively. If they are connected by a conducting wire, the final charge on the smaller sphere isA. `3xx10^(-2)C`B. `4xx10^(-2)C`C. `1xx10^(-2)C`D. `2xx10^(-2)C` |
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Answer» Correct Answer - A `Q_("total")=4xx10^(-2)C` Charnge distribution `prop` capacitance `prop` radius `therefore Q_("small"):Q_("big")=1:3` `Q_("big")=(3)/(4)xx4xx10^(-2)=3xx10^(-2)C` |
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| 607. |
Which one is found only in RNA and not in DNA ?A. ThymineB. AdenineC. GuanineD. Cytosine |
| Answer» Correct Answer - A | |
| 608. |
Cholecystokinin and secretin are secreted byA. StomachB. IleumC. DuodenumD. Colon |
| Answer» Correct Answer - C | |
| 609. |
Dolly sheep was obtained byA. Cloning the udder cell (somatic cell) fused with unnucleated oocyteB. Cloning of gametesC. Tissue cultureD. None |
| Answer» Correct Answer - A | |
| 610. |
Which induces the development of corpus luteum :A. LHB. OestrongenC. FSHD. LTH |
| Answer» Correct Answer - A | |
| 611. |
Plant pathogenic bacteria are mostly:A. Gram + Non spore formingB. Gram – Non spore formingC. Gram + spore formingD. Gram (–) spore forming |
| Answer» Correct Answer - B | |
| 612. |
One set of a plant was grown at 12 hours day and 12 hours night period cycle and it flowered while in the other set night period cycles and it flowered while in the other set night phase was interrupted by flash of ligth and did not produce flower. Under which one of the following categories will you place this plantA. Darkness neutralB. Day neutralC. Short dayD. Long day |
| Answer» Correct Answer - C | |
| 613. |
There is no DNA inA. Hair rootB. An enucleated ovumC. Mature RBCsD. A mature spermatozoan |
| Answer» Correct Answer - 3 | |
| 614. |
During photorespiration, the oxygen consuming reaction (s) occur inA. Stroma of chloroplasts and mitochondriaB. Stroma of chloroplasts and peroxisomesC. Grana of chloroplasts and peroxisomesD. Stroma of chloroplasts |
| Answer» Correct Answer - B | |
| 615. |
Which one is a hot spot of biodiversityA. Western GhatsB. Indo-Gangetic PlainC. Eastern GhatsD. Aravalli Hills |
| Answer» Correct Answer - A | |
| 616. |
The evolutionary history of an organism is known asA. PhylogenyB. AncestryC. PaleontologyD. Ontogeny |
| Answer» Correct Answer - A | |
| 617. |
One gene - one enzyme relationship was established for the first time onA. Diplococus pneumoniaeB. Neurospora crassiaC. Salmonella typhimuriumD. Escherichia Coli |
| Answer» Correct Answer - B | |
| 618. |
Male gametes in angiosperms are formed by the division ofA. Microspore mother cellB. MicrosporeC. Generative cellD. Vegetative cell |
| Answer» Correct Answer - C | |
| 619. |
Which one of the following generally acts as an antagonist to gibberellinsA. EthyleneB. ABAC. IAAD. Zeatin |
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Answer» Correct Answer - B ABA is generally antagonistic to Gibberellin specifically in maintaining seed dormancy while Gibberellin breaks seed dormancy |
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| 620. |
What is the function of germ poreA. Absorption of water for seed germinationB. Initiation of pollen tubeC. Release of male gametesD. Emergence of radicle |
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Answer» Correct Answer - B Germ pore is the place on pollen grains exine where the sporopollen is absent. It helps in formation of pollen tube by intine. |
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| 621. |
For its action, nitrogenase requiresA. LightB. `Mn^(2+)`C. Super oxygen radicalsD. High input of energy |
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Answer» Correct Answer - D Enzyme nitrogenase requires high input of energy to carryout biological nitrogen fixation. `N_(2)+8H^(+)+8e^(-)+16 ATPoverset("Nitrogenase")rarr 2NH_(3)+H_(2)+"16 ADP"` |
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| 622. |
A fall in glomerular filtration rate (GFR) activatesA. Adrenal cortex to release aldosteroneB. Adrenal medulla to release adrenalineC. Posterior pituitary to release vasopressinD. Juxta glomerular cells to release renin |
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Answer» Correct Answer - D Fall in BP leading to fall in GFR causes activation of Renin – Angiotensin Aldosterone system RAAS due to which JG apparatus releases Renin. |
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| 623. |
Vernalization stimulates flowering inA. TurmericB. CarrotC. GingerD. Zamikand Ans |
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Answer» Correct Answer - B Carrot is a biennial plant requires stimuli of low temperature i.e. vernalization for flowering. |
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| 624. |
Which one of the following paris of chemical substances, is correctly categorised ?A. Pepsin and prolactin - Two digestive enzymes secreted in stomachB. Troponin and myosin - Complex proteins in striated musclesC. Secretin and rhodopsin - Polypeptide hormonesD. Calcitonin and thymosin - Thyroid hormones |
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Answer» Correct Answer - B A complex protein Troponin is distributed at regular intervals on the tropomyosin. |
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| 625. |
Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells):A. A particular hormoneB. An antifeedantC. A toxic proteinD. Both sense and anti-sense RNA |
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Answer» Correct Answer - D Nematode or pest resistant tobacco were developed by RNA interference technology, which involve formation of sense and antisense RNA both. |
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| 626. |
Read the following five statements (A-E) and answer as asked next to them (A) In Equisetum the female gametophyte is retained on the parent sporphyte (A) In Equisetum the female gametophyte is retained on the parent sporophyte (B) In ginkgo male gametophyte is not independent (C) Sexual reproduction in Volvox is isogamous (E) The spores of slime moulds lack cell walls How many of the above statements are correctA. ThreeB. FourC. OneD. Two |
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Answer» Correct Answer - C Ginkgo male gamete is motile free swimming but male gametophyte is not independent and not of free existence |
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| 627. |
Supportive skeletal structures in the human external ears and nose tip are ofA. Areolar tissueB. BoneC. CartilageD. Ligament |
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Answer» Correct Answer - C Ear pinna and tip nose are example of yellow elastin cartilage. (Chapter - Structural organization in Animals) |
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| 628. |
Cuscuta is an example ofA. Brood parasitismB. PredationC. EndoparasitismD. Ectoparasitism |
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Answer» Correct Answer - D Cuscuta is a total shoot parasite of many plants lives on body of plant, so a ectoparasite |
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| 629. |
Where do certain symboitic microorganisms normally occur in human bodyA. Oral lining and tongue surfaceB. Vermiform appendix and rectumC. DuodenumD. Caecum |
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Answer» Correct Answer - D Caecum is a small blind sac which hosts some symbiotic micro organism |
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| 630. |
Identify the meiotic sage in which the homologous chromosomes separate while the sister chromatids remain associated at their centrometres. Or In which stage of meiosis homologous chromosomes are segregatedA. Metaphase-IIB. Anaphase-IC. Anaphase-IID. Metaphase-I |
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Answer» Correct Answer - B Separation of homologous chromosome occur in anaphase I of meiosis I. |
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| 631. |
Which one of the following cellular parts is correctly describedA. Centrioles - sites for active RNA synthesisB. Ribosomes - those on chloroplasts are larger (80s) while those in the cytoplasm are smaller (70s)C. Lysosomes - optimally active at a pH of about 8.5D. Thylakoids - flattened membranous sacs forming the grana of chloroplasts |
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Answer» Correct Answer - D Thylakoids form granum in chloroplast. |
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| 632. |
What is the term used for colour blindness in which all colours are perceived gray |
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Answer» We call it, Monochromacy (achromatopsia) |
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| 633. |
Geometric representation of age structure is a characteristic of :A. EcosystemB. Biotic communityC. PopulationD. Landscape |
| Answer» Correct Answer - C | |
| 634. |
Which one of the following statement is incorrect about menstruation ?A. At menopause in the female, there is especially abrupt increase in gonadotropic hormonesB. The beginning of the cycle of menstruation is called menarcheC. During normal menstruation about 40 ml blood is lostD. The menstrual fluid can easily clot |
| Answer» Correct Answer - D | |
| 635. |
In the given figure, a diode `D` is connected to an external resistance `R=100 Omega` and an emf of `3.5 V`. If the barrier potential developed across the diode is `0.5 V`, the current in the circuit will be : A. 35 mAB. 30 mAC. 40 mAD. 20 mA |
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Answer» Correct Answer - B `i=(V_("net"))/(R_("net"))=(3.5-0.5)/(100)` `=(3)/(100)`Amp. =30mA. |
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| 636. |
The position vector of a particle `vec(R )` as a funtion of time is given by: `vec(R )= 4sin(2pit)hat(i)+4cos(2pit)hat(j)` Where `R` is in meters, `t` is in seconds and `hat(i)` and `hat(j)` denote until vectors along x-and y- directions, respectively Which one of the following statements is wrong for the motion of particle ?A. Path of the particle is a circle of radius 4 meterB. Acceleration vector is along `-vecR`C. Magnitude of acceleration vector is `(v^(2))/(R)` where v is the velocity of particleD. Magnitude of the velocity of particle is 8 meter/second |
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Answer» Correct Answer - D `vecR=4sin(2pit)hati+4cos(2pit)hatj` `x=4sin2pit` . . . (1) `y=4cos2pit` . . . (2) (1) `x^(2)+y^(2)=4(sin^(2)2pit+cos^(2)2pit)` `x^(2)+y^(2)=4^(2)` equation of circle and radius 4m (2) `veca=(V^(2))/(R)(-hatR)` (3) `a=(V^(2))/(R)` (4) `V_(x)=+4(cos2pit)(2pi)` and `V_(y)=-4(sin2pit)(2pi)` `V=sqrt(V_(x)^(2)+V_(x)^(2))` `=sqrt((8pi)^(2)(cos^(2)2pit+sin^(2)2pit))` `V=8pi` so `4^(th)` option is incorrect. |
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| 637. |
A circular disc of radius `0.2 m` is placed in a uniform magnetic fied of induction `(1)/(pi) ((Wb)/(m^(2)))` in such a way that its axis makes an angle of `60^(@)` with The magnetic flux linked with the disc isA. 0.08 WbB. 0.01 WbC. 0.02 WbD. 0.06 Wb |
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Answer» Correct Answer - C `A=pir^(2)=0.04pi` `phi=BA cos theta` `=(1)/(pi)xx0.04pixxcos 60^(@)=0.02Wb` |
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| 638. |
Study the pedigree chart given below :- What does it show :-A. Inheritance of a recessive sex-linked disease like haemophiliaB. Inheritance of a sex-linked inborn error of metabolism like phenylketonuriaC. Inheritance of a condition like phenylketonuria as an autosomal recessive traitD. The pedigree chart is wrong as this is not possible |
| Answer» Correct Answer - 3 | |
| 639. |
One of the followings is a very unique feature of the mammalian bodyA. Presence of diaphragmB. Four chambered heartC. Rib cageD. Homeothermy |
| Answer» Correct Answer - A | |
| 640. |
Which one of the following pairs is not correctly matchedA. Vitamin `B_6` – Loss of appetiteB. Vitamin `B_1` – Beri-beriC. Vitamin `B_2` – PellagraD. Vitamin `B_12` – Pernicious annemia |
| Answer» Correct Answer - A | |
| 641. |
When `CO_(2)` concentration in blood increases breathing becomesA. There is no effect on breathingB. Slow and deepC. Faster and deeperD. Shallower and slow |
| Answer» Correct Answer - C | |
| 642. |
The domestic sewage in large citiesA. is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plant (STPs)B. When treated in STPs does not really require the aeration step as the sewage contains adequate oxygenC. has very high amounts of suspended solids and dissolved saltsD. has a high BOD as it contains both aerobic and anaerobic bacteria. |
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Answer» Correct Answer - A In waste water treatment plant, the secondary treatment includes the biological treatment where the aerobic bacteria and anaerobic bacteria fungi are involed |
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| 643. |
What is correct for blood grops O?A. No antegens but both a and b antibodies are presentB. A antegen and b antibodyC. Antigen and Antibody both absentD. A and B antigens and a, b, antibodies |
| Answer» Correct Answer - A | |
| 644. |
Which one of the following is closest relative of Man?A. ChimpanzeeB. GorillaC. OrangutanD. Gibbon |
| Answer» Correct Answer - A | |
| 645. |
chromosomes in a bacterial cell can be 1-3 in number and :A. Are always circularB. Are always linearC. Can be either circular or linear, but never both within the same cellD. Can be circular as well as linear within the same cell |
| Answer» Correct Answer - A | |
| 646. |
Plasmodesmata areA. Connection between adjacent cellsB. Lignified cemented layers between cellsC. Locomotory structuresD. Membranes connecting the nucleus with plasmalemma |
| Answer» Correct Answer - 1 | |
| 647. |
The wheat grain/maize grain has an embryo with one, large, shield shaped cotyledon known as:A. ColeoptileB. EpiblastC. ColeorrhizaD. Scutellum |
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Answer» Correct Answer - D Scutellum is the single cotyledon present in monocot. |
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| 648. |
Acid rain is caused by increase in the atmospheric concentration of :A. `O_(3)` and dustB. `SO_(2) and NO_(2)`C. `SO_(3) and CO`D. `CO_(2) and CO` |
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Answer» Correct Answer - B Acid rain have `H_(2)SO_(4)` and `HNO_(3)` in the ratio of 7:3 due to high concentration of oxides of sulphur & nitrogen. |
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| 649. |
Filifom apparatus is characteristic feature of :A. synergidsB. Generative cellsC. Nucellar embryoD. Aleurone cell |
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Answer» Correct Answer - A Synergid of embryo sac consist of filiform apparatus. |
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| 650. |
Unit of contraction :A. SarcomereB. Muscle fiberC. ActinD. None |
| Answer» Correct Answer - A | |