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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 10351. |
ADH is secreted from the posterior lobe of pituitary and its deficiency leads to |
| A. | Diabetes mellitus |
| B. | Conn's syndrome |
| C. | Addison's disease |
| D. | Diabetes insipid us |
| Answer» E. | |
| 10352. |
Magnetic Resonance (MR) images are derived from the proton bearing species present principally from water and [AIIMS 2003] |
| A. | Long alkane chain protons of the fatty acid moieties |
| B. | Short alkane chain protons of the fatty acid moieties |
| C. | Long alkene chain protons of the fatty acid moieties |
| D. | Short alkene chain protons of the fatty acid moieties |
| Answer» D. Short alkene chain protons of the fatty acid moieties | |
| 10353. |
AIDS related complex (ARC) is a disease which leads to fever, swollen lymph nodes, night sweats, loss in weight etc. represents [MP PMT 1994] |
| A. | Severe form of AIDS |
| B. | Initial form of AIDS |
| C. | No link with AIDS |
| D. | None of the above |
| Answer» C. No link with AIDS | |
| 10354. |
DDT was first synthesized by |
| A. | Othnar Zeidler |
| B. | Paul Muller |
| C. | Michael Faraday |
| D. | Schrader |
| Answer» B. Paul Muller | |
| 10355. |
Silk is the secretion of [CBSE PMT 1993; BHU 1999] |
| A. | Cephalic glands |
| B. | Gastric glands |
| C. | Buccal glands |
| D. | Salivary glands |
| Answer» E. | |
| 10356. |
Match the following 'A' 'B' 1. Amaltas I. Plantaginaceae 2. Amla II. Caesalpiniaceae 3. Afim III. Euphorbiaceae 4. Pipalmul IV. Papaveraceae 5. Bahera V. Piperaceae 6. Isabgol VI. Combretaceae Correct pairing is |
| A. | 1 - I 2 - II 3 - III 4 - IV 5 - V 6 - VI |
| B. | 1 - II 2 - III 3 - IV 4 - V 5 - VI 6 - I |
| C. | 1 - III 2 - IV 3 - V 4 - VI 5 - I 6 - VII |
| D. | 1 - IV 2 - V 3 - VI 4 - I 5 - II 6 - III |
| Answer» C. 1 - III 2 - IV 3 - V 4 - VI 5 - I 6 - VII | |
| 10357. |
Genetic counsellors can identify heterozygous individuals by [BHU 2004] |
| A. | Height of individuals |
| B. | Colour of individuals |
| C. | Screening procedures |
| D. | All of these |
| Answer» D. All of these | |
| 10358. |
Which monkey is active during the night and rest during the day? |
| A. | Lion tailed Macaque |
| B. | Nilgiri langur |
| C. | Bonnet Macaque |
| D. | Gorilla |
| Answer» E. | |
| 10359. |
In Minamata Bay, Japan, which of the following animals remained free from Minamata disease [CBSE PMT 1995] |
| A. | Cats |
| B. | Rabbits |
| C. | Dogs |
| D. | Pigs |
| Answer» C. Dogs | |
| 10360. |
Of more immediate concern regarding carbon cycle is |
| A. | Output rate of carbon locked in deposits of coal, petroleum and natural gas |
| B. | Greenhouse gases |
| C. | Increase in the total mass of carbon in earth's atmosphere by 12-14% |
| D. | All above |
| Answer» E. | |
| 10361. |
An ecosystem may be defined as [MP PMT 1999] |
| A. | A localised association of several plants and animals |
| B. | Different communities of plants, animals and microbes together with their physico-chemical environments |
| C. | Different communities of plants and microbesplus their physicochemical environments |
| D. | None of these |
| Answer» C. Different communities of plants and microbesplus their physicochemical environments | |
| 10362. |
When young plants are grazed too heavily, they get killed because of |
| A. | Mechanical injury to roots |
| B. | Roots are starved |
| C. | Most of the aerial parts are eaten away |
| D. | Mechanical injury to the branches |
| Answer» C. Most of the aerial parts are eaten away | |
| 10363. |
Which of these possesses good regenerating power [MP PMT 2001] |
| A. | Brain |
| B. | Kidney |
| C. | Lung |
| D. | Liver |
| Answer» E. | |
| 10364. |
After penetrating stigmatic and styler tissues, the pollen tube usually grow down towards the egg because [CPMT 1985] |
| A. | The egg cell attracts the pollen tube as they have dissimilar electric charge |
| B. | The filiform apparatus of synergids is believed to attract the pollen tube |
| C. | It has no other passage to follow |
| D. | It grows under control of nucleus |
| Answer» C. It has no other passage to follow | |
| 10365. |
A source of good firewood is |
| A. | Pinus |
| B. | Cedrus |
| C. | Albizzia |
| D. | Dracaena |
| Answer» D. Dracaena | |
| 10366. |
Electron beam therapy is a kind of radiation therapy of treat [AIIMS 2004] |
| A. | Enlarged prostate gland |
| B. | Gall bladder stones by breaking them |
| C. | Certain types of cancer |
| D. | Kidney stones |
| Answer» E. | |
| 10367. |
Cushing's syndrome which is characterised by wasting of limb muscles and accumulation of fat in the trunk region is due to hypersecretion of [CPMT 1991] |
| A. | Corticosteroid |
| B. | Adrenalin |
| C. | Progesterone |
| D. | Adrenocorticotropin |
| Answer» B. Adrenalin | |
| 10368. |
Brown Plant Hopper is [Kerala PMT 2000] |
| A. | Nilparavata lugens |
| B. | Calliphora erythrophala |
| C. | Helizoverpa armigera |
| D. | Schistocerea gregaria |
| E. | Carasius morosus |
| Answer» B. Calliphora erythrophala | |
| 10369. |
Fish which eradicates the mosquito larva, is [CBSE PMT 1999] |
| A. | Anabus |
| B. | Rohu |
| C. | Gambusia |
| D. | Cutter fish |
| Answer» D. Cutter fish | |
| 10370. |
Tubular elongated early pupa of silk worm is known as |
| A. | Imago |
| B. | Early imago |
| C. | Chrysalis |
| D. | Early chrysalis |
| Answer» D. Early chrysalis | |
| 10371. |
Which one of the following causes crown gall disease |
| A. | Aspergillus |
| B. | Agrobacterium |
| C. | Shigella |
| D. | None of the above |
| Answer» C. Shigella | |
| 10372. |
A tiger will think twice before attacking this animal, even though it is alone. Which is it |
| A. | Nilgai |
| B. | Wild dog |
| C. | Wild Buffalo |
| D. | Chital |
| Answer» D. Chital | |
| 10373. |
Air pollution causing photochemical oxidants production include [AMU 1989] |
| A. | Carbon monoxide, sulphur dioxide |
| B. | Nitrous oxide, nitric acid fumes, nitric oxide |
| C. | Ozone, peroxyacetyl nitrate, aldehydes |
| D. | Oxygen, chlorine, fuming nitric acid |
| Answer» D. Oxygen, chlorine, fuming nitric acid | |
| 10374. |
If we completely remove the decomposers from an ecosystem, the ecosystem functioning will be adversely affected because [CBSE PMT 1995] |
| A. | Mineral movement will be blocked |
| B. | Herbivores will not receive solar energy |
| C. | Energy flow will be blocked |
| D. | Rate of decomposition of other components will be very high |
| Answer» B. Herbivores will not receive solar energy | |
| 10375. |
When growth takes place only by increase in volume of existing cells it is called as |
| A. | Auxetic growth |
| B. | Multiplicative growth |
| C. | Accretionary growth |
| D. | Differential growth |
| Answer» B. Multiplicative growth | |
| 10376. |
Ostium is provided with a number of finger like processes fimbriae |
| A. | For receiving ovum |
| B. | To increase the catching area |
| C. | [a] and [b] both |
| D. | To secrete hormones |
| Answer» D. To secrete hormones | |
| 10377. |
Which of the following statement is false with respect to application of auxins [BHU 1989] |
| A. | Control direction of growth of plants |
| B. | Inhibits lateral bud growth |
| C. | Initiate and promote cell division actively particularly in tissue culture |
| D. | Produce hyperelongation effect |
| Answer» D. Produce hyperelongation effect | |
| 10378. |
MRI was originally discovered in 1946 by |
| A. | Steptoe and Edwards |
| B. | Godfrey Hounsfield and Alan Cormack |
| C. | Bloch and Purcell |
| D. | Louis Sokoloff |
| Answer» B. Godfrey Hounsfield and Alan Cormack | |
| 10379. |
Degenerative diseases are those which develop due to [Kerala CET 2002] |
| A. | Malfunction of hormones |
| B. | Degeneration of tissues |
| C. | Malfunction of certain body organs |
| D. | Degeneration of the infected organs |
| Answer» D. Degeneration of the infected organs | |
| 10380. |
The calorific value of biogas is [Pb. PMT 1992] |
| A. | \[1020mj/{{m}^{3}}\] |
| B. | \[2328mj/{{m}^{3}}\] |
| C. | \[3540mj/{{m}^{3}}\] |
| D. | \[510mj/{{m}^{3}}\] |
| Answer» C. \[3540mj/{{m}^{3}}\] | |
| 10381. |
Certain compounds are released by the WBC which raise the body temperature. These compounds are known as [RPMT 2001] |
| A. | Pyrogens |
| B. | Histamines |
| C. | Toxigens |
| D. | Pathogens |
| Answer» B. Histamines | |
| 10382. |
Christopher Columbus landed in island of Bahmas (Carribean sea) in |
| A. | 1692 |
| B. | 1592 |
| C. | 1492 |
| D. | 1792 |
| Answer» D. 1792 | |
| 10383. |
By the turn of twentieth century, fertilizer consumption in India is expected to |
| A. | 9.2 M tonnes |
| B. | 15 M tonnes |
| C. | 20 M tonnes |
| D. | 5.2 M tonnes |
| Answer» C. 20 M tonnes | |
| 10384. |
Most common pesticides used in the crops are |
| A. | BHC, aldrin, malathion, pyrethrin |
| B. | Aldrin, malathion, lead arsinate, sodium fluoride |
| C. | Aldrin, malathion, sodium arsinate, lead arsi_ate |
| D. | Cryolite, aldrin, pyrethrin |
| Answer» B. Aldrin, malathion, lead arsinate, sodium fluoride | |
| 10385. |
The most used domesticated animal by Eskimos is |
| A. | Cow |
| B. | Sheep |
| C. | Goat |
| D. | Husky |
| Answer» E. | |
| 10386. |
Which one of the following methods is commonly used to maintain the genetic traits of a given plant |
| A. | By propagating through seed germination |
| B. | By propagating through vegetative multiplication |
| C. | By generating hybrids through intergeneric pollination |
| D. | By treating the seeds with gamma radiation |
| Answer» C. By generating hybrids through intergeneric pollination | |
| 10387. |
What is tetraploid solid wheat and hexaploid club wheat |
| A. | T. spelta and T. durum respectively |
| B. | T. compactum and T. turgidum respectively |
| C. | T. turgidum and T. compactum respectively |
| D. | T. aestivum and T. spelta respectively |
| Answer» D. T. aestivum and T. spelta respectively | |
| 10388. |
The country which hosted the first world earth summit on conservation of environment is [AMU 1992; CPMT 1992] |
| A. | Brazil |
| B. | Spain |
| C. | India |
| D. | Peru |
| Answer» B. Spain | |
| 10389. |
Grassland biome for its maintenance requires |
| A. | Periodic fire |
| B. | Intensive grazing |
| C. | Mowing |
| D. | All the above |
| Answer» E. | |
| 10390. |
Lichens are important in the studies on atmospheric pollution because they |
| A. | Can grow in polluted atmosphere |
| B. | Can readily multiply in polluted atmosphere |
| C. | Efficiently purify the atmosphere |
| D. | Are very sensitive to pollutants like sulphur dioxide |
| Answer» E. | |
| 10391. |
Among the plants listed, point out one that does not fit into ecological group represented by other plants [CPMT 1988; BHU 1999] |
| A. | Acacia |
| B. | Rhizophora/Vallisneria |
| C. | Euphorbia |
| D. | Aloe |
| Answer» C. Euphorbia | |
| 10392. |
A branch of science in which forest crop can be grown in desired pattern is |
| A. | Histology |
| B. | Horticulture |
| C. | Pisiculture |
| D. | Silviculture |
| Answer» E. | |
| 10393. |
After demonstration of totipotency, a botanist wishes to produce identical plants from an angiosperm by tissue culture. The parts or tissues which are likely to yield haploid embryos are |
| A. | Root tips |
| B. | Stem apices |
| C. | Leaves |
| D. | Anthers |
| Answer» E. | |
| 10394. |
Which of the following glands control the growth |
| A. | Anterior pituitary only |
| B. | Thyroxin only |
| C. | Thyroid and Thymus |
| D. | Anterior pituitary and Thyroxin |
| Answer» E. | |
| 10395. |
In most of the mammals the testes are situated outside the abdominal cavity because [CPMT 1987; Kerala PMT 2005] |
| A. | Sperms produced in scrotal sac are more in number |
| B. | Sperms produced in abdominal cavity are provided with less motility |
| C. | Sperms producd in scrotal sac require lesser temperature for their best fertilization capacity |
| D. | Sperms produced in scrotal sac are bigger |
| Answer» D. Sperms produced in scrotal sac are bigger | |
| 10396. |
Narcotic drugs |
| A. | Increase the nerve impulses |
| B. | Are pain reliever |
| C. | Alter thoughts, feelings etc. |
| D. | None of the above |
| Answer» C. Alter thoughts, feelings etc. | |
| 10397. |
Average population density on earth is |
| A. | 6 persons/sq. km |
| B. | 26 persons/sq. km |
| C. | 10 persons/sq. km |
| D. | 40 persons/sq. km |
| Answer» C. 10 persons/sq. km | |
| 10398. |
Liver becomes store house of fat instead of carbohydrate and protein. This is |
| A. | Drug addiction syndrome |
| B. | Fatty liver syndrome |
| C. | Epilepsy syndrome |
| D. | Tobacco inhalation syndrome |
| Answer» C. Epilepsy syndrome | |
| 10399. |
Withdrawal symptoms of drug addiction are |
| A. | Showed during epilepsy |
| B. | Unpleasent symptoms showed due to non-availability of addicted drugs |
| C. | Unpleasent symptoms showed due to alcoholism |
| D. | Unpleasent symptoms showed due to narcotic drugs |
| Answer» C. Unpleasent symptoms showed due to alcoholism | |
| 10400. |
For better survival of the human population which of the following steps is most important [MP PMT 1990] |
| A. | Reduction in the use of various resources |
| B. | Afforestation |
| C. | Conservation of wild life |
| D. | Ban on mining activity |
| Answer» D. Ban on mining activity | |