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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.
| 7401. |
Question : Sundarbans contains |
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Answer» MANGROVE plants |
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| 7402. |
Question : Sunandini is a cross breed of a cow which was developed by crossing |
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Answer» SAHIWAL with BROWN Swiss |
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| 7403. |
Question : The activities of animals like foraging,reproductive and migratory depends upon |
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Answer» TEMPERATURE |
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| 7405. |
Question :The active uptake of minerals ions in root epidermal cells is responsible for passive absorption of water, because |
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Answer» It increases the water potential of the root CELLS |
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| 7406. |
Question : Sunandini breed originate from crossing between |
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Answer» LOCAL BREED and jersey |
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| 7407. |
Question : The active principle trans tetra hydrocanabial ispresent in |
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Answer» Opium |
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| 7408. |
Question : Sumn hemp fibres are obtained from: |
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Answer» bark of CROTOLARIA juncea |
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| 7409. |
Question : The active principle in Marijuana is __________ . |
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Answer» |
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| 7410. |
Question : Summarize major events of DNA finger printing technique. |
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Answer» Solution :1) Dr.Alec Jeffery.s developed the techniques of DNA FINGERPRINT, an attempt to identify DNA marker for inherited diseases. 2) DNA finger printing uses short nucleotide repeats CALLED variable number tandem repeats (VNTRs) as markers VNTRs vary from person to person and are inherited from one generation to the next. Methodology and Technique DNA is isolated and extracted from the cell or tissue by centrifugation. By the PROCESS of polymerase chain reaction (PCR) many copies are PRODUCED. This step is called amplification. DNA is cut into small fragments by treating with restriction endonuclease DNA fragments are separated by agarosegel electophoresis The repeated DNA fragments are visualized under ultraviolet radiation after applying suitable dye The DNA is transferred from electrophoresis plate to NYLON membrane sheet. This is called southern blotting Probes are now added which bind to specific nucleotide sequence that are complementary to them, this is called hybridisation. The hybridised DNA fragments are detected by auto radiography. They are observed as dark bands on X - ray film. |
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| 7411. |
Question : The active form of Entamoeba histolytica feeds upon |
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Answer» ERYTHROCYTES MUCOSA and SUBMUCOSA of COLON |
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| 7412. |
Question : Summarise the events in sequence when a mixture of plasmid vector and human DNA is digested with restriction enzyme EcoRI is supplemented with enzyme DNA ligase. |
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Answer» SOLUTION :(a) Enzyme fcaR! will introduce sticky end cuts in plasmid vector and will cleave HUMAN DNA into SEGMENTS with similar sticky ends. (b) With the help of DNA LIGASE some plasmid molecules will form recombinant DNA by joining human DNA segment. |
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| 7413. |
Question : The active chemical drug reserpine is obtained from |
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Answer» Datura Rauwolfia vomitoria is the SOURCE of active chemical drug reserpine. This drug is OBTAINED from root. It is prescribed in hypertension and act as TRANQUILLISER. Datura is a plant with hallucinogenic properties. Drug belladonna is obtained from Atropabelladonna . Drug Opium is obtained from Papaver somniferum. |
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| 7414. |
Question : The active component of the bacteriophage that transmits the infective character is |
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Answer» The PROTEIN |
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| 7415. |
Question : Sum total of genes with all these alleles at any time in a unit of evolution is called. |
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Answer» Genotype |
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| 7416. |
Question : The activechemical drug reserpine is obtainedform : |
| Answer» Answer :C | |
| 7417. |
Question : Sum total of genes in a population is: |
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Answer» Genotype |
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| 7418. |
Question : The action spectrum of chlorophyll shows the highest peak in ………… region. |
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Answer» blue |
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| 7419. |
Question : Sum of growth and differentiation is considered as |
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Answer» |
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| 7420. |
Question : The action potential in a neuron is a brief change in |
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Answer» `CO_2` CONCENTRATION |
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| 7421. |
Question : Sulphur shower is the phenomenon related to |
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Answer» REPRODUCTION in Cycas |
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| 7422. |
Question : The accidental touch of Nettleleavescreates a burningsensation, whichis due to inject of |
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Answer» Hydrochloric ACID |
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| 7423. |
Question : Sulpha drugs/sulphanilamides kill becteria by inhibiting synthesis of folic acid from paraaminobenzoic acid. This type of control of bacterial pathogens is : |
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Answer» Non–competivite inhibition |
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| 7424. |
Question : The absorptive nutrition of fungi is aided by |
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Answer» dikaryon formation |
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| 7425. |
Question : Sulphur is required for |
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Answer» FERREDOXIN, PLASTOQUINONE, Hexokinase |
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| 7426. |
Question : The abundance of a species population within its habitat is called |
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Answer» NICHE DENSITY |
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| 7427. |
Question : Suggest the word (for the process) when DNA sample is subjected to restriction endonuclease. |
| Answer» SOLUTION :In the PROCESS of DNA FRAGMENTATION, DNA sample is SUBJECTED endonuclease. | |
| 7428. |
Question :Suggest the reproduction-related aspects in which counselling should be provided at the school level. |
| Answer» Solution : At school level guidance about following aspects should be provided : (i) In school sex education related information should be provided so children keep AWAY from wrong BELIEFS and wrong concepts related to reproduction. (ii) We should provide them proper information regarding REPRODUCTIVE organs, changes related to them, safe and health sexual habits, STD etc. (iii) Problems created due to uncontrolled POPULATION growth. Social evils, social cruelty like sexual exploitation and crime related to sex. (iv) People should be educated to options of birth rate control, precautions of pregnant lady, precautions to be taken of mother and child after the birth of a child, importance of breast feeding, EQUAL opportunity to male and female both. | |
| 7429. |
Question : Suggest three assisted reproductive technologies to overcome infertility. |
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Answer» Solution :1. Test tube baby PROGRAMME : In this method, ova from wife or donor (female) and SPERMS from husband/donor (male) are allowed to fuse under simulated conditions in the laboratory it is called In vitro fertilization (IVF). The zygote is then transferred into UTERUS or fallopian tube this process is called embryo transfer (ET). 2. Gamete Intra Fallopian Transfer(GIFT) : It involves transfer of an ovum collected from a donor into fallopian tube of another female who cannot PRODUCE ova but can provide suitable condition for fertilization. 3. Artificial Insemination : In this method semen is collected from the husband or a healthy donor into vagina or uterus (IUI - Intra uterine insemination) of the female. |
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| 7430. |
Question : Suggest the type of photophosphorylation, during which oxygen is evolved. Explain the process and draw its diagrammatic representation. |
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Answer» Solution :1. Photophosphorylation :The process by which energy rich ATP molecules are synthesized using solar energy is called photophosphorylation. 2. Noncyclic photophosphorylation : Noncyclic photophosphorylation is a kind of photophosphorylation which involves a continuous UNIDIRECTIONAL flow of electrons from water to PS II, from PS II to PS I and finally to NADP. It is completed in the following steps : (i ) Photoexcitation of photosystem I (PS I) : (1) The photosynthetic pigments of PS I (photosystem I ) sbsorb the energy of photons which is funnelled to the reaction centre `P_(700)` (chlorophyll-a). (2) The energy of photons are converted into the energy of electrons which are raised to high energy level (orbit ) as chlorophyll-a is excited by the absorbing light . (3) The electrons raised to high energy level are then ACCEPTED by FRS (Ferredoxin reducing substance). (4) The electrons from FRs are transferred to ferredoxin (Fd) as a result of which it is reduced.  (5) The electrons from reduced ferredoxin is finally taken to NADP which is reduced to NADPH. (6) NADP retains the electrons and becomes negatively charged, while `P_(700)` owing to loss of electrons becomes positively charged i.e., ionized. (ii) Photoexcitation of PS II and flow of electrons from PS II to PS I : (1) The photosynthetic pigments of photosystem II absorb the energy of photons which funnelled to the reaction centre of PS II, i.e., `P_(680).` (2) The energy of photons is converted into the energy of electrons which are raised to high energy level. (3) The electrons that are raised to high energy level are accepted by plastoquinone (PQ) leaving the reaction centre ionized. As a result of this PQ is reduced. (4) The electrons from PQ then pass through an electron transport chain consisting of cytochrome-`b_(6)`, cytochrome-f and phastocyanin during which they lose energy, i.e., de-energize. (5) The de-energized electrons are transferredfrom plastocyanin to the reaction centre `P_(700)` of PS I. This shows that PS II replaces the lost electrons to PS I. (6) During the transfer of electrons from cytochrome-`b_(6)` to cytochrome-f the released energy is utilized for the syntheses of ATP from ADP and iP. (iii) Photolysis of water : (1) `P_(680)` of pohotosystem II (PS II) behaves like a strong oxidizing agent. Therefore, it brings about the photolytic splitting of water molecule is called photolysis of water. (2) When four electrons `(e^(-))` are removed from the reaction centre of PS II, they BRING about the splitting of four water molecules into `4H^(+)` and `4OH^(-)`ions. (3) The hydroxyl ions `(4OH^(-))` thus produced donate the electrons to the reaction centre `P_(680)` as a result of which they become 4OH radicals. (4) The 4OH radicals then react among themselves and form TWO molecules of water with the release of oxygen as shown under : `4OH to 2H_(2)O + O_(2)` The net products of noncyclic photophosphorylation are ATP, NADPH and `O_(2)` . ATP and NADPH are utilized in the dark reactions of photosynthesis while oxygen is released. Significance of photophosphorylation : (1) Noncyclic photosphorylaion brings about the photolysis or water and release of molecular oxygen to the atmosphere. (2) It involves the formation of ATP and `NADPH_(2)` Which possess the assimilatory power. This assimilatory power is utilized in the dark reaction of photosynthesis. (3) ATP provides energy for the synthesis of carbohydratesduring the dark reaction of photosynthesis. (4) `NADPH_(2)` possesses reducing power which is utilized in the reduction of `CO_(2)` to carbohydratesduring the reaction of photosynthesis. |
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| 7431. |
Question : Suggest the aspects of reproductive health which need to be given special attention in the present scenario. |
| Answer» Solution :Increased health facilities along with better living conditions had an explosive impact on the growth of population. In this light we MUST take care about population explosion and try to minimise the BIRTH rate. Otherwise we will face ABSOLUTE SCARCITY of basic REQUIREMENTS. | |
| 7432. |
Question : Suggest the ART which may be successful in the following conditions.Male partner is unable to inseminate the female or has very low sperm count. |
| Answer» SOLUTION :`AI//IUI` | |
| 7433. |
Question : Suggest the ART which may be successful in the following conditions. Fusion of gametes and zygote formation does not occur within the body of the female. |
| Answer» SOLUTION :IVF followed by ET EITHER ZIFT or TUT | |
| 7434. |
Question :Suggest some of the features of plants that will prevent insect and pest infestation. |
| Answer» Solution :(i) Increasing hair growth on aerial parts of plants. (II) Rendering the flowers nectar LESS. (iii) Enabling plants to SECRETE INSECT killing chemicals (toxins). | |
| 7435. |
Question : Suggest some of the ways to prevent drug and alcohol abuse. |
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Answer» Solution :i. Effectively dealing with PEER PRESSURE : The biggest reason for teens to start on drugs is due to their friends/peer groups imposing pressure on them. Hence, it is important to have a better group of friends to avoid such harmful drugs and alcohol. ii. Seeking help from parents and peers : Help from parents and peer group should be sought immediately so that they can be guided appropriately. Help may even be sought from close and trusted friends. Getting proper advice to sort out their PROBLEMS would help the young to vent their feelings anxiety and guilt. III. Education and counsellings : Education and counselling create positive attitude to deal with many problems and to accept disappointments in life. iv. Looking for danger signs : Teachers and parents need to look for sign that indicate tendency to go in for addiction. v. Seeking PROFESSIONAL and medical assistance : Assistance is available in the form of highly qualified psychologists, psychiatrists and de-addication and rehabilitation programmes to help individuals to overcome their problems. |
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| 7436. |
Question : Suggest some methods to assist infertile couples to have children. |
| Answer» SOLUTION : (i) Test tube BABY (ii) GIFT (III) ICSI (iv) AI | |
| 7437. |
Question : Suggest some important steps that you would recommend to be taken to improve the reproductive health standards in India. |
| Answer» Solution :In India following STEPS become necessary to IMPROVE reproductive health : (i) STRONG internal facilities, presence of professional experts are necessary to make the programme of reproductive health successful. (ii) People are educated with birth control methods, care of pregnant mothers, importance of breast feeding, safe and hygienic sexual practices, and STDs and protections against them and proper information is provided. (iii) Various steps are taken to create awareness among the people about reproduction releted aspects with the help of audio-visual and print media. (iv) Various problems created due to population rise, social evils like sexual exploitation, sex related crimes, awareness to prevent such crime. (v) Statutory BAN to be put on amniocentesis therefore foetus of female and abortion can be checked legally. | |
| 7438. |
Question : Suggest measures to conserve the forests. |
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Answer» Solution :MEASURES to conserve the forests are as follows : (1) Regulating INDISCRIMINATE grazing of animals in forest LAND. (2) Effective control of wildlife. (3) Protection of forests from pests and pathogens. (4) Economic use of timber and fuel wood to avoid the wastage of forest resources. (5) Conservation of forests through law. (6) Educating people about the hazards of deforestation. (7) Encouraging agroforestry. (8) Adopting reforestation and aforestation programmes. |
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| 7439. |
Question : List out some methods that you suggest to control water pollution in your locality. |
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Answer» Solution :• Regulate or control of pollutant(s) discharge at the point of generation. • Wastewater can be pretreated by scientific methods before discharge to MUNICIPAL treatment sources. • Setting up of Sewage Treatment PLANTS (STP) and Effluent Treatment Plants (ETP). • Regulate or RESTRICT the use of synthetic fertilisers and PESTICIDES. • Public awareness and peoples. involvement is essential. |
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| 7440. |
Question : Suggest few methods to treat SCID. |
| Answer» Solution :SCID caused by ADA deficieney could be cured by bone marrow transplantation where defective immune cells could be replaced with healthy immune cells from donor. It can ALSO be treated by enzyme REPLACEMENT therapy in which functional ADA is injected into patient.sbody where it breaks down toxic biological PRODUCT. | |
| 7441. |
Question : Suggest few hygienetipsto face healthy and happy menses . |
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Answer» Solution :• Change the napkins periodically for 4 to 6 hours. • WASH your genitals PROPERLY using clean LUKEWARM water. • Avoid using soaps and vaginal hygiene PRODUCTS. • Discard the sanitary napkins by incinerating. • Wear clean and comfortable underwear. Avoid tight clothing. • Have healthy diet RICH in Iron content and vitamins. |
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| 7442. |
Question : Mention the methods used to treat AIDS patients. |
| Answer» Solution :Prevention of AIDS is the best option.Advocating SAFE sex an promoting regular check-up,safe blood for transfusion,USE of disposable needles ,use of condoms during sexual contact,prevention of drug ABUSE ,AIDS awareness PROGRAMME by NACO (National AIDS controlOrganisation),NGOs (non-governmental Organisations)and WHO are to PREVENT the spreading of AIDS. | |
| 7443. |
Question : Suggest any two techniques for early diagnosis of bacterial/ viral human diseases. |
| Answer» SOLUTION :PCR and ELISA | |
| 7444. |
Question : Suggest any two simple precautions to avoid contracting RTI's. |
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Answer» SOLUTION :1. Avoiding COITUS with unknown/multiple partners. 2. USE of condoms during coitus. |
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| 7445. |
Question : Suggest a technique to a researcher who needs to separate fragmentsof DNA. |
| Answer» Solution :fragments of DNA can beseparated USING thetechnique calledGel Electrophrisis here ,DNA molecules are SEPARATED using electricfiled DNA BENG nagatively charged moves TOWARDS anode through a matrix. | |
| 7446. |
Question : Suggest a solution to water crisis and explain its advantages. |
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Answer» Solution :Rainwatervesting is the accumulation and storage of rain water for reuse in-site rather than allowing it to run off. Rainwater can be collected from rivers, roof tops and the water is collected is DIRECTED to a deep pit.The water percolates and gets stored in the pit. RWH is a sustainable water MANAGEMENT practice implemented not only in urban area but also in agricultural fields, which is an important economical cost effective method for the future Environmental benefits of Rain Water Harvesting: • Promotes adequacy of underground water and water conservation . • Mitigates the effect of drought. • Reduces soil erosion as surface run-off is reduced. • Reduces flood hazards. • Improves groundwater quality and water table / decreases salinity. • No LAND is WASTED for storage purpose and no population DISPLACEMENT is involved. • Storing water underground is an eco-friendly measure and a part of sustainable water storage strategy for local communities. |
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| 7447. |
Question : Suggest a proper title for a poster that you have prepared as a part of Wildlife Week Celebrations related with 'tiger conservation'. |
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Answer» SOLUTION :Tiger is our national PRIDE Let them live FREELY. |
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| 7448. |
Question : Suggest a place where one can go to study coral reefs, mangrove vegetation and estuaries. |
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Answer» SOLUTION :CORAL reefs-Andaman and Nicobar MANGROVE vegetation-West BENGAL Estuaries-Kerala, Karnataka, Tamil NADU |
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| 7449. |
Question : Suggest a possible explanation why the seeds in a pea pod are arranged in a row, whereas those in tomato are scattered in the juicy pulp. |
Answer» Solution : SEED arrangement in FRUIT depends on type of PLACENTATION. Pea and TOMATO SHOWS different placentation. Pea shows marginal placentation. Tomato shows axile placentation. |
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| 7450. |
Question : Suggest a method to overcome excessive inbreeding depression. |
| Answer» SOLUTION :Out CROSSING. | |