InterviewSolution
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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.
| 1001. |
Natality refers toA. Number of individuals leaving the habitatB. Birth rateC. Death rateD. Number of individuals entering a habitat |
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Answer» Correct Answer - B Natality refers to birth rate. `*` Death rate – Mortality `*` Number of individual entering a habitat is – Immigration `*` Number of individual leaving the habital– Emigration |
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| 1002. |
Select the correct matchA. Matthew Meselson and F. Stahl - Pisum sativumB. Alfred Hershey and Martha Chase - TMVC. Alec Jeffreys - Streptococcus pneumoniaeD. Francois Jacob and Jacques Monod - Lac operon |
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Answer» Correct Answer - D Francois Jacob and Jacque Monod proposed model of gene regulation known as operon model/lac operon. – Alec Jeffreys – DNA fingerprinting technique. – Matthew Meselson and F. Stahl – Semi- conservative DNA replication in E. coli. – Alfred Hershey and Martha Chase – Proved DNA as genetic material not protein |
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| 1003. |
Which of the following has proved helpful in preserving pollen of fossilsA. Oil contentB. Cellulosic intineC. PollenkittD. Sporopollenin |
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Answer» Correct Answer - D Sporopollenin cannot be degraded by enzyme, strong acids and alkali, therefore it is helpful in preserving pollen as fossil. Pollenkitt – Help in insect pollination. Cellulosic Intine – Inner sporoderm layer of pollen grain known as intine made up cellulose & pectin. Oil content – No role is pollen preservation. |
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| 1004. |
What is true about the isolated small tribal populations ?A. Wrestlers who develop strong body muscles in their life time pass their character on to their progenyB. There is no change in population size as they have a large gene poolC. There is a decline in population as boys marry girls only from their own tribeD. Hereditary disease like colour-blindness do not spread in the isolated population |
| Answer» Correct Answer - C | |
| 1005. |
In chloroplasts the chlorophyll is located inA. GranaB. PyrenoidC. StromaD. Both (1) and (3) |
| Answer» Correct Answer - A | |
| 1006. |
Edible part of mango isA. ReceptacleB. EpicarpC. MesocarpD. Endocarp |
| Answer» Correct Answer - C | |
| 1007. |
In chloroplasts, chlorophyll is present in theA. Inner membraneB. ThylakoidsC. StromaD. Outer membrane |
| Answer» Correct Answer - B | |
| 1008. |
Haploids are more suitable for mutation studies than the diploids. This is becauseA. haploids are more abundant in nature than diploidsB. all mutations, whether dominant or recessive are expressed in haploidsC. haploids are reproductively more stable than diploidsD. mutagens penetrate in haploids more effectively than in diploids |
| Answer» Correct Answer - B | |
| 1009. |
Palisade parenchyma is absent in leaves ofA. GramB. SorghumC. MustardD. Soybean |
| Answer» Correct Answer - 2 | |
| 1010. |
Reason for elimination of wild life is:-A. DeforestationB. Forest fireC. FloodsD. Less Rain fall |
| Answer» Correct Answer - A | |
| 1011. |
The electric and magnetic field of an electromagnetic wave isA. in phase and perpendicular to each otherB. in phase and parallel to each otherC. in opposite phase and perpendicular to each otherD. in opposite phase and parallel to each other |
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Answer» Correct Answer - A In EM waves ` vecE and vecB` are in same phase and perpendicular to each other . |
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| 1012. |
A particle of mass `m` moves in the `XY` plane with a velocity `v` along the straight line `AB`. If the angular momentum of the particle with respect to origin `O` is `L_(A)` when it is at A and `L_(B)` when it is at B, then A. `L_(A) lt L`B. `L_(A) gt L_(B)`C. `L_(A) = L_(B)`D. The relationship between `L_(A) and L_(B)` depends upon the slope of the line AB |
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Answer» Correct Answer - C As perpendicular distance from origin is constant so `L_(A)=L_(B)` |
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| 1013. |
Two satellites of earth `S_(1)` and `S_(2)` are moving in the same orbit. The mass of `S_(1)` is four times the mass of `S_(2)`. Which one of the following statements is true?A. The kinetic energies of the two satellites are equalB. The time period of `S_(1)` is four times that of `S_(2)`C. The potential energies of earth and satellite in the two cases are equalD. `S_(1) and S_(2)` are moving with the same speed |
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Answer» Correct Answer - D `K.E.=(GMm)/(2r) implies` Kinetic energies are unequal `T=(2pir^(3//2))/(sqrt(GM))implies`Time period are equal `P.E.=-(GMm)/(r)implies` Potential energies are unequal `v=sqrt((Gm)/(r))implies ` Orbital speeds are equal |
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| 1014. |
Animals of desert are :A. ArborealB. FossorialC. CrepuscularD. Nocturnal |
| Answer» Correct Answer - B | |
| 1015. |
Which part not have only involuntary muscles :A. UrethraB. IrishC. Heart musclesD. Blood vessels |
| Answer» Correct Answer - A | |
| 1016. |
Solenocytes occur in :A. PlatyhelminthesB. ArthropodaC. AnnelidaD. Aschelminthes |
| Answer» Correct Answer - A | |
| 1017. |
For life cycle of Obelia, most appropriate term used isA. MetagenesisB. MorphogenesisC. ApolysisD. Pedogeny |
| Answer» Correct Answer - A | |
| 1018. |
In angiosperm, characters of flowers are used in classification because :A. Characters of flowers are conservativeB. Flowers are largeC. Flowers are attractiveD. None of the above |
| Answer» Correct Answer - A | |
| 1019. |
Oral contraceptives contain :-A. ProgesteroneB. LHC. OxytocinD. Steroles |
| Answer» Correct Answer - A | |
| 1020. |
Adrenalin direct affect on : -A. S.A. NodeB. `beta`-cells of LangerhansC. Dorsal root of spinal cordD. Epithelial cells of stomach |
| Answer» Correct Answer - A | |
| 1021. |
The pH of a solution of AgCI(s) with solubility product `1.6 xx 10^(-10)` in 0.1 M Nacl solution would be :A. `1.26xx10^(-5)M`B. `1.6xx10^(-9)M`C. `1.6xx10^(-11)M`D. zero |
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Answer» Correct Answer - B `{:(,underset((s))(AgCl),hArr,Ag^(+),+,Cl^(-)),("Initial",-,,0,0),(Eq^(m),-,,S^(1),S^(1)):}` `{:(,NaCl,to,Na^(+),+,Cl^(-)),("Initial",C,,0,,0),("Final",0,,C,,C):}` So Ionic product `Q=K_(sp)=[Ag^(+)][Cl^(-)]` `" "K_(sp)=(S^(1))" "(C)` `becalseCl^(-)` ion due to common ion obtained from NaCl `S^(1)=(K_(sp))/(C)=(1.6xx10^(-10))/(0.1)=1.6xx10^(-9)` |
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| 1022. |
Concentration of DDT is highest in:-A. Primary consumerB. ProducersC. Top consumerD. Decomposer |
| Answer» Correct Answer - C | |
| 1023. |
Which of the following statement is true for bryophyta?A. Along with water absorption roots also provide anchorment to plantsB. Sporophyte is dominantC. Gametophyte is dominant and sporophyte is mostly parasiticD. Gametophyte is parasitic |
| Answer» Correct Answer - C | |
| 1024. |
How many organism in the list given below are autotrophs Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomuces, Sacharomyces, Trypanosoma, Porphyra WolfiaA. FiveB. SixC. ThreeD. Four |
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Answer» Correct Answer - B 4- Photoautotroph Nostoc, Chara, Porphyra, Wolfia 2-chemo-autotroph Nitrosomonas and nitrobacter `" total autotrophs = 6 "` |
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| 1025. |
How many plants in the list given below have marginal placentation : Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Chochicine, onion, Moong, Pea, Tobacco, LupinA. FiveB. SixC. ThreeD. Four |
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Answer» Correct Answer - B Marginal placentation is present in Fabaceae family |
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| 1026. |
as compared to a dicot root, a monocot root hasA. Many xylem bundlesB. Inconspicuous annual ringsC. Relatively thicker peridermD. More abundant secondary xylem |
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Answer» Correct Answer - A Dicot root is diarch to hexarch while in monocot polyarch condition is present |
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| 1027. |
Which one of the following categories of animals, is correctly described with no single exception in it ?A. All bony fishes have four pairs of gills and an operculum on each sideB. All sponges are marine and have collared cellsC. All mammals are viviparous and possess diaphragm for breathingD. All reptiles possess scales, have a three chambered heart and are cold blood (poikilothermal) |
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Answer» Correct Answer - A (Chapter - Animal Kingdom, Class - Osteichthyes) |
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| 1028. |
The rate of formation of new organic matter by rabbit in a grassland, is called.A. Secondary productivityB. Net primary productivityC. Gross primary productivityD. Net productivity |
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Answer» Correct Answer - A The rate of accumulation of biomass at primary consumer level is secondary productivity |
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| 1029. |
In genetic engineering, the antibiotics are usedA. To select healthy vectorsB. As sequences from where replication startsC. To keep the cultures free of infectionD. As selectable markers |
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Answer» Correct Answer - D Antibiotics medium are used to mark or select transformant & Recombinant bacteria so we can say antibiotics used as a selectable markers with marker gene (Antibiotics resistant gene). |
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| 1030. |
In gobar gas, the maximum amount is that ofA. MethaneB. PropaneC. Carbon dioxideD. Butane |
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Answer» Correct Answer - A The major component of Bio/Gobar gas is `60%` to `70%` methane. |
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| 1031. |
The secretory phase in the human menstrual cycle is also called:A. Follicular phase lasting for about 6 daysB. Luteal phase and lasts for about 13 daysC. Follicular phase and lasts for about 13 daysD. Luteal phase and lasts for about 6 days |
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Answer» Correct Answer - B Secretory phase is the phase under corpus luteum which last for 13-14 days in case of absence of pregnancy |
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| 1032. |
The particle executing simple harmonic motion has a kinetic energy `K_(0) cos^(2) omega t`. The maximum values of the potential energy and the energy are respectivelyA. `K_(0) and K_(0)`B. `0 and 2K_(0)`C. `(K_(0))/(2) and K_(0)`D. `K_(0) and 2K_(0)` |
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Answer» Correct Answer - A `:. K.E. =K_(0) cos^(2) omegat` ltbtgt `:.` Maximum P.E.= Maximum K.E. = Total energy =`K_(0)` |
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| 1033. |
The rate of reaction between two `A` and `B` decreases by factor `4` if the concentration of reactant `B` is doubled. The order of this reaction with respect to `B` isA. 2B. `-1`C. `1`D. `-2` |
| Answer» Correct Answer - D | |
| 1034. |
A solution has `1:4` mole ratio of pentane to hexane . The vapour pressure of pure hydrocarbons at `20^@C`are `440` mmHgfor pentane and `120`mmHg for hexane .The moleA. `0.200`B. `0.478`C. `0.549`D. `0.786` |
| Answer» Correct Answer - B | |
| 1035. |
In the nuclear reaction : `X (n, alpha)_3 Li^7` the term `X` will be `3`A. `._5^10B`B. `._5^9B`C. `._4^11Be`D. `._2^4He` |
| Answer» Correct Answer - A | |
| 1036. |
Half life of a radioactive elemets is 12.5 hour and its quantity is 256 gm. After how much time is quantity will remain 1 gm ?A. 50 HrsB. 100 HrsC. 150 HrsD. 200 Hrs |
| Answer» Correct Answer - B | |
| 1037. |
Which of the following muscular disorders is inherited?A. BotulismB. TetanyC. Muscular dystrophyD. Myasthenia gravis |
| Answer» Correct Answer - C | |
| 1038. |
Consider following features: (a) Organ system level of organisation (b) Bilateral symmetry (c) True coelomates with segmentabon of body Select the correct option of animal groups which possess all the above characteristics.A. Annelida, Mollusca and ChordataB. Annelida, Arthropoda and ChordataC. Annelida, Arthropoda and MolluscaD. Arthropoda, Mollusca and Chordata |
| Answer» Correct Answer - B | |
| 1039. |
Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by :A. PhosphofructokinaseB. AldolaseC. HexokinaseD. Enolase |
| Answer» Correct Answer - C | |
| 1040. |
Expressed Sequence Tags (ESfs) refers to :A. Novel DNAsequencesB. Genes expressed as RNAC. Polypeptide expressionD. DNA polymorphism |
| Answer» Correct Answer - B | |
| 1041. |
The vascular cambium normally gives rise toA. PhellodermB. Primary phloemC. Secondary xylemD. Periderm |
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Answer» Correct Answer - C During secondary growth, vascular cambium gives rise to secondary xylem and secondary phloem. Phelloderm is formed by cork cambium. |
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| 1042. |
Which of the following statements is correct?A. The ascending limb of loop of Henle is impermeable to waterB. The descending limb of loop of Henle is impermeable to waterC. The ascending limb of loop of Henle is permeable to waterD. The descending limb of loop of Henle is permeable to electrolytes |
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Answer» Correct Answer - A Descending limb of loop of Henle is permeable to water but impermeable to electrolytes while ascending limb is impermeable to water but permeable to electrolytes. |
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| 1043. |
Which of the following prevents falling of fruits OR Fruit and leaf drop at early stages can be prevented by the applicationA. CytokininsB. EthyleneC. AuxinsD. Gibberellic acid |
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Answer» Correct Answer - C Auxins prevent premature leaf and fruit fall. NAA prevents fruit drop in tomato, 2,4-D prevents fruit drop in Citrus. |
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| 1044. |
The Primary denition in human differ from permanent denition is not having one of the folloiwn type of teeth or A baby boy aged two years years is admitted to play school and passes through a dental observed that boy that had twenty teeth. Which teeth were absent absentA. IncisorsB. CaninesC. Pre-molarsD. Molars |
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Answer» Correct Answer - C otal number of teeth in human child = 20. Premolars are absent in primary dentition. |
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| 1045. |
A post-anal tail is found inA. EarthwormB. Lower invertebrateC. ScorpionD. Snake |
| Answer» Correct Answer - D | |
| 1046. |
Chloroplast stroma of higher plants containsA. ChlorophyllB. Light-independent reaction enzymesC. Light-dependent reaction enzymesD. Ribosomes |
| Answer» Correct Answer - 2 | |
| 1047. |
Areolar connective tissue joinsA. Fat body with musclesB. Integument with musclesC. Bones with musclesD. Bones with bones |
| Answer» Correct Answer - B | |
| 1048. |
What change occurs during conversion of proto chlorophyll to chlorophyll :A. Addition of 2H in one pyrrole ringB. Loss of 2HC. Addition of MgD. Loss of Mg |
| Answer» Correct Answer - A | |
| 1049. |
Which of the following statement is true : -A. Vessels are multicellular and with wide lumenB. Tracheids are multicellular and with narrow lumenC. Vessels are unicellular and with narrow lumenD. Tracheids are unicellular and with wide lumen |
| Answer» Correct Answer - A | |
| 1050. |
One of the most important functions of botanical gardens is thatA. They allow ex-situ conservation of germ plasmB. They provide the natural habitat for wild lifeC. One can observe tropical plants thereD. They provide a beautiful area for recreation |
| Answer» Correct Answer - A | |