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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.
| 11501. |
Assertion : Chlamydospores are thick-walled. Reason : Thin-walled chlamydospores are called gemmae. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 11502. |
Synapsis is pairing of [MP PMT 2003] |
| A. | Any two chromosomes |
| B. | Non homologous chromosomes |
| C. | Acentric chromosomes |
| D. | Homologous chromosomes |
| Answer» E. | |
| 11503. |
Read the assertion and reason carefully: Assertion : Orchis root resembles human hand. Reason : Orchis is an example of fasciculated fleshy roots. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 11504. |
Assertion : The uptake of DNA during transformation is an active, energy requiring process. Reason : Transformation occurs in only those bacteria, which possess the enzymatic machinery involved in the active uptake and recombination. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 11505. |
Assertion : Magnesium is important in photosynthesis and carbohydrate metabolism. Reason : \[M{{g}^{++}}\]is involved in the synthesis of nucleic acids. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 11506. |
Fossil fuels have been formed by a [DPMT 1996] |
| A. | Conventional process |
| B. | Natural process |
| C. | Non-conventional process |
| D. | All the above |
| Answer» D. All the above | |
| 11507. |
Assertion : Mendel was successful in his hybridization experiments. Reason : Garden pea proved ideal experimental material. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 11508. |
Jumping genes are found in [MP PMT 2003] |
| A. | Eukaryotes |
| B. | Bacteriophage |
| C. | Bacteria |
| D. | Eukaryotes and prokaryotes |
| Answer» E. | |
| 11509. |
Assertion : Trichomonas vaginalis causes infection only in women. Reason : Trichomonas buccalis lives in the buccal cavity. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» F. | |
| 11510. |
The rate of biogas production can be limited by |
| A. | Methane production |
| B. | Cellulose digestion |
| C. | Conversion of monomers to organic acids |
| D. | None of these |
| Answer» C. Conversion of monomers to organic acids | |
| 11511. |
The pesticide useful in the control of aphids, caterpillars, plant bugs and borers is |
| A. | Aldrin |
| B. | DDT |
| C. | Endosulphan |
| D. | BHC |
| Answer» D. BHC | |
| 11512. |
The recessive genes located on X-chromosome in humans are always [CBSE PMT 2004] |
| A. | Expressed in males |
| B. | Expressed in females |
| C. | Lethal |
| D. | Sub-lethal |
| Answer» B. Expressed in females | |
| 11513. |
Noosphere relates to an environment dominated by |
| A. | Zooplanktons |
| B. | Nannoplanktons |
| C. | Man |
| D. | Carnivores |
| Answer» D. Carnivores | |
| 11514. |
Succulent xerophytes are likely to be found in [CPMT 1983, 84, AFMC 1986, 90; MP PMT 1990] |
| A. | Tropical rain forest |
| B. | Deciduous forest |
| C. | Desert |
| D. | Tundra |
| Answer» D. Tundra | |
| 11515. |
Systematic approach of naming enzymes has been recommended by the Commission on Enzymes of the |
| A. | International Union of Physiology |
| B. | International Union of Biochemistry |
| C. | International Union of Biotechnology |
| D. | International Union of Genetic Engineering |
| Answer» C. International Union of Biotechnology | |
| 11516. |
Which are the two active ingredients in 'Flit' |
| A. | Malathion and Pyrethrin |
| B. | Carbofuran and Propoxur |
| C. | Malathion and Carbofuran |
| D. | Pyrethrin and Propoxur |
| Answer» B. Carbofuran and Propoxur | |
| 11517. |
Biome with broad-leaved resinous fire resistant drought enduring plants is [AIIMS 1997] |
| A. | Savannah |
| B. | Steppes |
| C. | Chapparal |
| D. | Deciduous forest |
| Answer» D. Deciduous forest | |
| 11518. |
Which of following group of mammals, the placenta is absent |
| A. | Prototheria |
| B. | Metatheria |
| C. | Eutheria |
| D. | Theria |
| Answer» B. Metatheria | |
| 11519. |
First biosphere reserve was established in 1986 at |
| A. | Nilgiri |
| B. | Nanda Devi |
| C. | Little Rann of Kutch |
| D. | Sunderbans |
| Answer» B. Nanda Devi | |
| 11520. |
Correlation between 'Kranz' anatomy and\[{{C}_{4}}\]path of\[C{{O}_{2}}\]assimilation was first established by |
| A. | Hill and Bendall |
| B. | Calvin |
| C. | Dowton and Treguna |
| D. | Arnold |
| Answer» D. Arnold | |
| 11521. |
Read the assertion and reason carefully: Assertion : Flower of racemose inflorescence are pollinated by insects. Reason : In Racemose head infloresence, the florets are arranged in a centripetal fashion. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 11522. |
Estuaries occur in [AMU 2001] |
| A. | Orissa and Tamilnadu |
| B. | Kerala and Tamilnadu |
| C. | Kerala and Orissa |
| D. | Kerala, Tamilnadu and Orissa |
| Answer» E. | |
| 11523. |
Assertion : Blubber is present in some mammals. Reason : Bubbles are present in blubber. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 11524. |
When collagen fibres are removed from the areolar tissue |
| A. | Tissue becomes hard |
| B. | Tissue becomes loose and elastic |
| C. | Tissue becomes hard and inelastic |
| D. | Remains unchanged |
| Answer» C. Tissue becomes hard and inelastic | |
| 11525. |
Assertion : Cedrus deodara yields highly-valued timber. Reason : Cedrus deodara is resistant to pathogen attack. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 11526. |
Which one of the following statements concerning the algae is wrong [CPMT 1987] |
| A. | Most algae are photosynthetic |
| B. | Algae can be classified according to their pigments |
| C. | All algae are filamentous |
| D. | Spirogyra does not produce zoospores |
| Answer» D. Spirogyra does not produce zoospores | |
| 11527. |
Afforestation should be with [Haryana PMT 1994] |
| A. | Exotic species |
| B. | Indigenous species |
| C. | Bamboos |
| D. | Eucalyptus |
| Answer» C. Bamboos | |
| 11528. |
Arbor vitae is composed of [AIIMS 1998] |
| A. | Grey matter |
| B. | Neurogleal cells |
| C. | White matter |
| D. | All of these |
| Answer» C. White matter | |
| 11529. |
Assertion : Mosses are used as pollution indicators. Reason : They absorb metals. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 11530. |
Which of the following pair is used as condiments |
| A. | Ferula and Papaver |
| B. | Curcuma and Ferula |
| C. | Cinchona and Ferula |
| D. | Cinchona and Papaver |
| Answer» C. Cinchona and Ferula | |
| 11531. |
Read the assertion and reason carefully: Assertion : Corm is a highly condensed and specialized underground stem. Reason : Corm has circular nodes. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 11532. |
In whose milk percentage of lactose is highest? |
| A. | Cow |
| B. | She goat |
| C. | She buffalo |
| D. | Human mother |
| Answer» E. | |
| 11533. |
Which one belongs to hydrolase group |
| A. | Amylase |
| B. | Transaminase |
| C. | Citrate synthetase |
| D. | Enolase |
| Answer» B. Transaminase | |
| 11534. |
Last stage of gametophytic generation is [RPMT 1995] |
| A. | Gametes |
| B. | Zygote |
| C. | Spore mother cells |
| D. | Spores |
| Answer» B. Zygote | |
| 11535. |
A legume having symbiotic association with two nitrogen fixing bacteria (Rhizobium and Aero rhizobium) is [MP PMT 1987] |
| A. | Crotalaria juncea |
| B. | Sesbania aculeata |
| C. | Sesbania rostrata |
| D. | Cyamopsis tetragonoloba |
| Answer» D. Cyamopsis tetragonoloba | |
| 11536. |
Fermentation is [CPMT 1986; JIPMER 1988; AFMC 1999; MP PMT 2003] |
| A. | Anaerobic respiration |
| B. | Incomplete oxidation of carbohydrates |
| C. | Complete oxidation of carbohydrates |
| D. | None of the above |
| Answer» B. Incomplete oxidation of carbohydrates | |
| 11537. |
Pod of Dolichos lablab is used as |
| A. | Vegetable |
| B. | As pulse |
| C. | Both and |
| D. | None of the above |
| Answer» B. As pulse | |
| 11538. |
Read the assertion and reason carefully: Assertion : Higher plants have meristematic regions for indefinite growth. Reason : Higher plants have root and shoot apices. [AIIMS 1999] |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 11539. |
Whether a nation can produce sportsmen who could successfully compete in Olympics is decided by their: |
| A. | health |
| B. | long life |
| C. | size of body |
| D. | right amount of food taken |
| Answer» B. long life | |
| 11540. |
Antilope cervicapra/Black Buck is |
| A. | Vulnerable |
| B. | Endangered |
| C. | Critically endangered |
| D. | Extinct in the wild |
| Answer» B. Endangered | |
| 11541. |
In mammals, few vertebrae join to form [EAMCET 1995] |
| A. | Humerus |
| B. | Femur |
| C. | Synsacrum |
| D. | Atlas |
| Answer» D. Atlas | |
| 11542. |
Read the assertion and reason carefully: Assertion : In Bignonia, the terminal leaflets are modified into hooks. Reason : Leaflet of Bignonia is a climber. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 11543. |
Phytotron is [CPMT 2003] |
| A. | Fish culture |
| B. | Plant hormone |
| C. | Animal hormone |
| D. | None of these |
| Answer» C. Animal hormone | |
| 11544. |
Pea nut (Arachis hypogea) belongs to the family [Pune CET 1998] |
| A. | Papilionaceae |
| B. | Poaceae |
| C. | Palmaceae |
| D. | Musaceae |
| Answer» B. Poaceae | |
| 11545. |
Assertion : Allopolyploidy is developed between hybridisation of two species. Reason : Amphidiploids are also allopolyploids. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 11546. |
Assertion : Total count of RBC comes out to be very low in polycythemia. Reason : Number of erythrocytes get reduced in the condition of polycythemia. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» E. If the assertion is false but reason is true | |
| 11547. |
Jumping genes are now known as [BHU 2005] |
| A. | Transposons |
| B. | Transversion |
| C. | Transduction |
| D. | Transformation |
| Answer» B. Transversion | |
| 11548. |
Assertion : Thigh muscles can get tired but not the muscles of ventricle of heart. Reason : Muscles of thigh are voluntary whereas that of heart are involuntary muscles. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 11549. |
Assertion : Polytene chromosomes are also called salivary chromosomes. Reason : They are present only in salivary glands of insects. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 11550. |
In a biosphere reserve, limited human activity is permitted in [AFMC 2002] |
| A. | Core zone |
| B. | Buffer zone |
| C. | Manipulation zone |
| D. | None of these |
| Answer» C. Manipulation zone | |