MCQOPTIONS
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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.
| 11401. |
Assertion : Euglena is studied as an animal as well as a plant. Reason : Euglena is more an animal than a plant. |
| 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 | |
| 11402. |
Palmella stage is produced |
| A. | In rainy season |
| B. | During unfavourable conditions |
| C. | During favourable conditions |
| D. | None of the above |
| Answer» C. During favourable conditions | |
| 11403. |
Two sister chromatids are attatched with [BVP 2000] |
| A. | Spindle fibre |
| B. | Centromere |
| C. | Chromocentre |
| D. | Chromatid |
| Answer» C. Chromocentre | |
| 11404. |
Development of embryo from the cells of the nucellus is called [BHU 1999] |
| A. | Parthenocarpy |
| B. | Apocarpy |
| C. | Adventive embryony |
| D. | Apospory |
| Answer» D. Apospory | |
| 11405. |
Read the assertion and reason carefully: Assertion : Thick cuticle is mostly present in disease resistant plants. Reason : Disease causing agents cannot grow on cuticle and cannot invade the cuticle. [AIIMS 1997] |
| 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 | |
| 11406. |
The formula of auxin 'a' is |
| A. | \[{{C}_{18}}\] \[{{H}_{30}}\] |
| B. | \[{{C}_{18}}\] \[{{H}_{32}}\] |
| C. | \[{{C}_{18}}\] \[{{H}_{32}}\] \[{{O}_{5}}\] |
| D. | \[{{C}_{18}}\] \[{{H}_{40}}\] \[{{O}_{10}}\] |
| Answer» D. \[{{C}_{18}}\] \[{{H}_{40}}\] \[{{O}_{10}}\] | |
| 11407. |
The function of centrosome is [CBSE PMT 2000] |
| A. | Inhibition of cell division |
| B. | Initiates cell division |
| C. | To increase protein synthesis |
| D. | None of these |
| Answer» E. | |
| 11408. |
MAB programme of UNESCO was launched in |
| A. | 1971 |
| B. | 1981 |
| C. | 1975 |
| D. | 1986 |
| Answer» B. 1981 | |
| 11409. |
The fundamental requirement of food in body is for: |
| A. | repair |
| B. | growth |
| C. | hunger |
| D. | metabolism |
| Answer» E. | |
| 11410. |
Assertion : Meiospores form genetically and functionally different progenies. Reason : Mitospores form progenies identical to parents. |
| 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 | |
| 11411. |
In the middle lamella of plant cell walls, one of the main elements is [MP PMT 1995; AFMC 2003] |
| A. | Iron |
| B. | Calcium |
| C. | Magnesium |
| D. | Potassium |
| Answer» C. Magnesium | |
| 11412. |
Assertion : Presence of connective tissue inside the brain is essential for conduction of nerve impulse. Reason : Connective tissue hold together the nerve cells of brain. |
| 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 | |
| 11413. |
Bryophytes differ from pteridophytes in [DPMT 1983; BHU 1995, 2000; AFMC 1995; CPMT 1996] |
| A. | Swimming antherozoids |
| B. | An independent gametophyte |
| C. | Archegonia |
| D. | Lack of vascular tissue |
| Answer» E. | |
| 11414. |
Assertion : Aristotle's lantern is an echinoderm. Reason : Aristotle's lantern resembles ship lantern. |
| 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. | |
| 11415. |
Cow dung is appropriately used as [DPMT 2001] |
| A. | Manure |
| B. | Fuel |
| C. | Medicine |
| D. | Building material |
| Answer» B. Fuel | |
| 11416. |
Histiocyte is a connective tissue cell, the function of which is [CPMT 1987] |
| A. | Phagocytic |
| B. | Secretion |
| C. | Substanance |
| D. | Fibre production |
| Answer» B. Secretion | |
| 11417. |
Even ventricles of reptiles are partitioned but there is mixing of blood [AIIMS 1996] |
| A. | Due to common ejection and entrance of blood in lungs |
| B. | Auricles are non-partitioned |
| C. | Heart is partially four-chambered |
| D. | None of these |
| Answer» D. None of these | |
| 11418. |
The reservoir pool of carbon is |
| A. | Air and water |
| B. | Fossil fuels |
| C. | Rocks |
| D. | All of these |
| Answer» E. | |
| 11419. |
Which variety of Barley has a higher protein content and more suited as food |
| A. | Two-rowed variety |
| B. | Four-rowed variety |
| C. | Six-rowed variety |
| D. | All the above |
| Answer» D. All the above | |
| 11420. |
Centre of origin of gram is |
| A. | Mexico |
| B. | Spain |
| C. | South Europe |
| D. | South-east Asia |
| Answer» D. South-east Asia | |
| 11421. |
Which is not true for anaphase [Orissa JEE 2004] |
| A. | Golgi body and ER are reformed |
| B. | Chromosomes move to opposite poles |
| C. | Spindle poles move farther apart |
| D. | Centromeres split and chromatids separate |
| Answer» B. Chromosomes move to opposite poles | |
| 11422. |
Earth Summit at Rio-de-Janero was related to [CPMT 1992] |
| A. | Soil fertility |
| B. | Survey of natural resources |
| C. | Conservation of environment |
| D. | Prevention of afforestation |
| Answer» D. Prevention of afforestation | |
| 11423. |
Maximum productivity is found in [DPMT 2003; BVP 2004] |
| A. | Grass land |
| B. | Tropical rain forest |
| C. | Ocean |
| D. | None of these |
| Answer» C. Ocean | |
| 11424. |
Which of the following is more efficient in converting solar energy |
| A. | Chlorella |
| B. | Cuscuta |
| C. | Earthworm |
| D. | Tiger |
| Answer» B. Cuscuta | |
| 11425. |
Assertion : The young birds are called squabs. Reason : Squabs are altricial in nature. |
| 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 | |
| 11426. |
Assertion : Bacteria are classified among plants. Reason : They have cell walls. |
| 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 | |
| 11427. |
Assertion : Chloragogen cells behave like ?vertebrate liver?. Reason : Chloragogen cells are present in annelida. |
| 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 | |
| 11428. |
Assertion : 'Calabar swelling' is caused by 'eye worm'. Reason : Loa loa is called the 'eye worm'. |
| 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 | |
| 11429. |
Cleidoic egg is an adaptation for [RPMT 2001] |
| A. | Aerial life |
| B. | Marine life |
| C. | Aquatic life |
| D. | Terrestrial life |
| Answer» E. | |
| 11430. |
Which pair of the animal groups, has oxygenated and de-oxygenated blood in the heart separately |
| A. | Amphibians and reptiles |
| B. | Birds and Mammals |
| C. | Reptiles and Birds |
| D. | Reptiles and Mammals |
| Answer» C. Reptiles and Birds | |
| 11431. |
Pyrenoids in green algal cells are related to [AIEEE 2004] |
| A. | Starch formation |
| B. | Protein storage |
| C. | General metabolism |
| D. | Enzyme secretion |
| Answer» B. Protein storage | |
| 11432. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Symbiosis is furnished by mycorrhiza. Reason : In mycorrhiza, symbiosis is established between fungus and alga. [AIIMS 1995] |
| 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 | |
| 11433. |
Read the assertion and reason carefully: Assertion : The leaf pitcher is a modification of lamina. Reason : Leaf pitchers are found in Dischidia to catch the 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 | |
| 11434. |
At boiling temperature an enzyme is |
| A. | Denatured |
| B. | Inactivated |
| C. | Killed |
| D. | Unaffected |
| Answer» B. Inactivated | |
| 11435. |
Which of the following is the source of carbon to plants |
| A. | Atmospheric \[C{{O}_{2}}\] |
| B. | \[C{{O}_{2}}\]of carbonate rocks |
| C. | Fossils |
| D. | All the above |
| Answer» B. \[C{{O}_{2}}\]of carbonate rocks | |
| 11436. |
Which of the following is not done in a wild life sanctuary [BHU 2005] |
| A. | Fauna is conserved |
| B. | Flora is conserved |
| C. | Soil and flora is utilised |
| D. | Hunting is prohibited |
| Answer» D. Hunting is prohibited | |
| 11437. |
The classification of algae is based on |
| A. | Type of pigment |
| B. | Nature of cell wall material |
| C. | Nature of reserve food |
| D. | All the above |
| Answer» E. | |
| 11438. |
Bryophytes are of [CPMT 1972; MP PMT 1987] |
| A. | Great economic value |
| B. | No value at all |
| C. | Great ecological importance |
| D. | A lot of aesthetic value |
| Answer» D. A lot of aesthetic value | |
| 11439. |
"One gene one enzyme'' theory was proposed by [BHU 1982, 84, 95; CPMT 1994; MP PMT 1996, 03; DPMT 2004; BVP 2004] |
| A. | G.W. Beadle and E.L. Tatum |
| B. | O.T. Avery and M. McCarthy |
| C. | J.H. Tijo and A. Levan |
| D. | C.E. Ford and J.H. Tijo |
| Answer» B. O.T. Avery and M. McCarthy | |
| 11440. |
Water is regularly supplied from the oxidation of food present in the |
| A. | Liver |
| B. | Stomach |
| C. | Hump |
| D. | Intestine |
| Answer» D. Intestine | |
| 11441. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : The plasmodium often possesses a number of branched "veins". Reason : The position of "veins" remains fixed. |
| 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 | |
| 11442. |
Agar agar is obtained from [BVP 2001, 02; AFMC 2004; CPMT 2004] |
| A. | Green algae |
| B. | Red algae |
| C. | Brown algae |
| D. | Blue green algae |
| Answer» C. Brown algae | |
| 11443. |
Ergot, which is an important source of a drug is obtained from [AIEEE 2004] |
| A. | Agaricus |
| B. | Claviceps |
| C. | Commiphora |
| D. | Ephedra |
| Answer» C. Commiphora | |
| 11444. |
In which form does the food transported in plants [BHU 2005] |
| A. | Sucrose |
| B. | Fructose |
| C. | Glucose |
| D. | Lactose |
| Answer» B. Fructose | |
| 11445. |
Low concentration of auxin lowers the growth of |
| A. | Root |
| B. | Stem |
| C. | Leaves |
| D. | Dicot plants |
| Answer» C. Leaves | |
| 11446. |
In meiosis, the centromere divides during [MP PMT 1997; 2001; BVP 2002] |
| A. | Prophase-I |
| B. | Metaphase-I |
| C. | Anaphase-I |
| D. | Anaphase-II |
| Answer» E. | |
| 11447. |
Which of the following prevents falling of fruits [CBSE PMT 2001] |
| A. | \[G{{A}_{3}}\] |
| B. | NAA |
| C. | Ethylene |
| D. | Zeatin |
| Answer» C. Ethylene | |
| 11448. |
The aquatic organism with prehensile tail is [EAMCET 2002] |
| A. | Macaca |
| B. | Chameleon |
| C. | Exocoetus |
| D. | Hippocampus |
| Answer» E. | |
| 11449. |
Which cell division is found during cleavage [RPMT 2001] |
| A. | Amitosis |
| B. | Mitosis |
| C. | Closed mitosis |
| D. | Meiosis |
| Answer» D. Meiosis | |
| 11450. |
What happens when auxin is applied to the tip of a cut stump |
| A. | Tip is burnt |
| B. | Flower is produced |
| C. | Leaves are instantly developed |
| D. | Callus is formed |
| Answer» E. | |