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.
| 301. |
The genetic material of \[\varphi \times 174\]is [MH CET 2000] |
| A. | ss DNA |
| B. | ds DNA |
| C. | ss RNA |
| D. | ds RNA |
| Answer» B. ds DNA | |
| 302. |
Porous wood contains mainly [AIIMS 2001] |
| A. | Fibres |
| B. | Vessels |
| C. | Trachieds |
| D. | Solid secretions |
| Answer» C. Trachieds | |
| 303. |
The reason for vegetatively reproducing crop plants for maintaining hybrid vigour is that: |
| A. | they can be easily propagated. |
| B. | they have a longer life span. |
| C. | they are more resistant to diseases. |
| D. | once a desire hybrid is produced, no chances of losing it. |
| Answer» E. | |
| 304. |
'Inland fishery' refers to: |
| A. | culturing fish in fresh water. |
| B. | trapping and capturing fishes from sea coast. |
| C. | deep sea fishing |
| D. | extraction of oil from fishes. |
| Answer» B. trapping and capturing fishes from sea coast. | |
| 305. |
Read the assertion and reason carefully: Assertion : Tyloses plug the tracheids and vessels. Reason : Tyloses are in growths of xylem cells. |
| 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 | |
| 306. |
Thick underground stem growing parallel to soil surface is [Tamil Nadu 2001] |
| A. | Stolon |
| B. | Rhizome |
| C. | Sucker |
| D. | Offset |
| Answer» C. Sucker | |
| 307. |
Exine of pollen is formed by activity of: |
| A. | Tapetum |
| B. | Endothelium |
| C. | Middle layers |
| D. | Endothecium |
| Answer» B. Endothelium | |
| 308. |
Male gametes or sperms are developed from generative cell by: |
| A. | Meiotic division |
| B. | Mitotic division |
| C. | Amitotic division |
| D. | none of these |
| Answer» E. | |
| 309. |
Which one is the oldest breeding method? |
| A. | Hybridisation |
| B. | Selection |
| C. | Mutation breeding |
| D. | Introduction |
| Answer» C. Mutation breeding | |
| 310. |
Heterosis requires: |
| A. | Selection |
| B. | Crossing |
| C. | Transformation |
| D. | Mutation |
| Answer» C. Transformation | |
| 311. |
Raphanus belongs to [MP PMT 1986; JIPMER 1987] |
| A. | Asteraceae |
| B. | Brassicaceae |
| C. | Solanaceae |
| D. | Liliaceae |
| Answer» C. Solanaceae | |
| 312. |
The relationship between hermit crab and sea anemone is: |
| A. | Symbiosis |
| B. | Mutualism |
| C. | Parasitism |
| D. | Commensalism |
| Answer» E. | |
| 313. |
Which tissue evolved first in animal kingdom? |
| A. | Connective tissue |
| B. | Skeletal tissue |
| C. | Epithelial tissue |
| D. | Muscular tissue |
| Answer» D. Muscular tissue | |
| 314. |
During succession, inhibition: |
| A. | may prevent the achievement of a climax community. |
| B. | is evidence for the equilibrium theory of succession. |
| C. | may interfere with the successful colonization of other species. |
| D. | may involve changes in soil pH or accelerated accumulation of humus. |
| Answer» D. may involve changes in soil pH or accelerated accumulation of humus. | |
| 315. |
In Amorphophallus and Colocasia (Ariods) an extremely enlarged underground vertical stem meant for vegetative reproduction and storage is [BHU 1980, 84; CPMT 1982; DPMT 1994] |
| A. | Tuber |
| B. | Corm |
| C. | Bulb |
| D. | Rhizome |
| Answer» C. Bulb | |
| 316. |
Which of the following terms is not correctly matched with its feature? |
| A. | Efferent neurons - Carries signals from CNS to the effector. |
| B. | Axon terminal - Possess neurotransmitter containing vesicle. |
| C. | Limbic system - Along with the hypothalamus, it is involved in the regulation of sexual behaviour, expression of emotional reactions and motivation. |
| D. | Association areas - Present in cerebellum and responsible for functions like intersensory associations, memory and communication. |
| Answer» E. | |
| 317. |
Identify the correct match of types of neurons with its location. (i) Unipolar neuron Embryonic stage (ii) Bipolar neuron Cornea of eyes (iii) Multipolar neuron Cerebral cortex |
| A. | (i) and (ii) only |
| B. | (ii) and (iii) only |
| C. | (i) and (iii) only |
| D. | All of the above |
| Answer» D. All of the above | |
| 318. |
Aquaporins are: |
| A. | Cytoplasmic connections between cortex cells. |
| B. | Openings in the lower epidermis of leaves through which water vapour escapes. |
| C. | Openings into root hairs through which water enters. |
| D. | Water specific channels in membranes that may regulate the rate of osmosis. |
| Answer» E. | |
| 319. |
Match column-I with column-II and select the correct answer using the codes given below. Column-I Column-IIA.GrowthI.Production of offspringB.ReproductionII.Composed of one or more cellsC.MetabolismIII.Increase in mass and increase in number of individualsD.Cellular organizationIV.Sum total of all chemical reactions occurring in body |
| A. | A-I B-II C-III D-IV |
| B. | A-III B-I C-II D-IV |
| C. | A-III B-I C-IV D-II |
| D. | A-II B-IV C-III D-I |
| Answer» D. A-II B-IV C-III D-I | |
| 320. |
The product of conjugation of Spirogyra is called [CBSE PMT 1991, 2000; CPMT 1993, 2000] |
| A. | Zoospore |
| B. | Akinete |
| C. | Chlamydospore |
| D. | Zygospore |
| Answer» E. | |
| 321. |
Nucleoid is present in |
| A. | Bacteria |
| B. | Virus |
| C. | Slime moulds |
| D. | Fungi |
| Answer» B. Virus | |
| 322. |
In the given figure of water hyacinth, a structure is marked as "X". This structure is involved in vegetative propagation as a unit of vegetative propagules. Identify the type of unit. |
| A. | Tuber |
| B. | Offsets |
| C. | Sucker |
| D. | Rhizome |
| Answer» C. Sucker | |
| 323. |
Match column-I with column-II and select the correct answer using the codes given below. Column-I Column-II A. Sponge I. Tuber B. Yeast II. Offset C. Potato III. Gemmules D. Water hyacinth IV. Budding |
| A. | A-IV; B-I; C-II; D-III |
| B. | A-III; B-I; C-IV; D-II |
| C. | A-III; B-IV; C-I; D-II |
| D. | A-III; B-IV; C-II; D-I |
| Answer» D. A-III; B-IV; C-II; D-I | |
| 324. |
Match column-I with column-II and select the correct option. Column-I (Epithelial) Column-II Location) A. Cuboidal I. Epidermis of skin B. Ciliated II. Inner lining of blood vessels C. Columnar III. Inner surface of gall bladder D. Squamous IV. Inner Iining of fallopian tube E. Keratinised Squamous V. Lining of pancreatic duct |
| A. | A-V; B-IV; C-II; D-III; E-I |
| B. | A-III; B-IV; C-V; D-II; E-I |
| C. | A-V; B-IV; C-III; D-II; E-I |
| D. | A-III; B-IV; C-V; D-I; E-II |
| Answer» D. A-III; B-IV; C-V; D-I; E-II | |
| 325. |
Read the assertion and reason carefully: Assertion : The flowers of Hypanthodium are never exposed. Reason : Hypanthodium flowers are bisexual. |
| 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 | |
| 326. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : LSD is the most powerful psychedelic. Reason : Psychedic drugs cause hallucination. |
| A. | If both assertion and reason are true and the reason is the correct explanation of the assertion. |
| B. | If both assertion and reason are true but reason is not the correct explanation of the assertion. |
| C. | If assertion is true but reason is false. |
| D. | If the assertion and reason both are false. |
| E. | If assertion is false but reason is true. |
| Answer» B. If both assertion and reason are true but reason is not the correct explanation of the assertion. | |
| 327. |
Which of the following are simple tissues [CPMT 2000] |
| A. | Parenchyma, xylem and phloem |
| B. | Parenchyma, collenchyma and sclerenchyma |
| C. | Parenchyma, xylem and collenchyma |
| D. | Parenchyma, xylem and sclerenchyma |
| Answer» C. Parenchyma, xylem and collenchyma | |
| 328. |
Touch me not belongs to [RPMT 1995] |
| A. | Liliaceae |
| B. | Solanaceae |
| C. | Mimosoideae |
| D. | Malvaceae |
| Answer» D. Malvaceae | |
| 329. |
In Rose, buds are found on stem at places other than nodes. These buds are known as |
| A. | Foliar |
| B. | Cauline |
| C. | Accessory |
| D. | Radicle |
| Answer» C. Accessory | |
| 330. |
Which one is correctly matched? (Kerala PMT 2006) |
| A. | Vitamin E Thiamine |
| B. | Vitamin A Calciferol |
| C. | Vitamin D Riboflavin |
| D. | Vitamin \[{{B}_{1}}\] Tocopherol |
| E. | Vitamin \[{{B}_{12}}\] Cyanocobalamin |
| Answer» F. | |
| 331. |
Which of the atmospheric factor act as anti-transpirant? |
| A. | \[S{{O}_{2}}\] |
| B. | CO |
| C. | \[C{{O}_{2}}\] |
| D. | All pollutant gases |
| Answer» D. All pollutant gases | |
| 332. |
Assertion : Bacterial cell wall are not like the plant cell. Reason : Bacterial cell wall is made up of cellulose. |
| 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 | |
| 333. |
If a child bleeds, he is prescribed by: |
| A. | heparin |
| B. | vitamin K |
| C. | vitamin C |
| D. | vitamin A |
| Answer» C. vitamin C | |
| 334. |
'Safe period', a means of birth control is based on: |
| A. | Ovulation which occurs on the 1411' day o menstrual cycle. |
| B. | Ovum which survives for about 2 days. |
| C. | Sperms which remain alive for about 3 days. |
| D. | All of the above |
| Answer» E. | |
| 335. |
Which of the following infections can also be transmitted by sharing of injection needles surgical instruments, etc., with infected persons, transfusion of blood, or from an infected mother to the foetus too? |
| A. | Hepatitis B and HIV |
| B. | Genital herpes and HIV |
| C. | Syphilis and Hepatitis B |
| D. | Chlamydiasis and Trichomoniasis |
| Answer» B. Genital herpes and HIV | |
| 336. |
Assisted reproductive technologies (ART includes which of the following statement(s)? |
| A. | Social awareness programmes to educate people about reproductive health and diseases. |
| B. | Research organisation working on to product new and more effective contraceptives for birth control. |
| C. | A number of special techniques which assist infertile couples to have children. |
| D. | Both [b] and [c] |
| Answer» D. Both [b] and [c] | |
| 337. |
Sporocarp is a reproductive structure of: |
| A. | Some algae |
| B. | Some aquatic ferns having sort |
| C. | Angiosperms having spores |
| D. | Bryophytes |
| Answer» C. Angiosperms having spores | |
| 338. |
Which of the following is known as poor man's cow and was associated with Gandhiji |
| A. | Goat |
| B. | Sheep |
| C. | Desi cow |
| D. | Buffalo |
| Answer» B. Sheep | |
| 339. |
The membrane that covers cartilage is known as [DPMT 1993] |
| A. | Periostium |
| B. | Perichondrium |
| C. | Perineurium |
| D. | Pericardium |
| Answer» C. Perineurium | |
| 340. |
How many pairs of contrasting character in pea plants were studied by Mendel in his experiments? |
| A. | Seven |
| B. | Eight |
| C. | Five |
| D. | Six |
| Answer» B. Eight | |
| 341. |
In fruit flies, dumpy wings are shorter and broader than normal wings. The allele for normal wings [D] is dominant to the allele for dumpy wings [d]. Seventy five normal-winged and twenty five dumpy-winged flies. The genotype of parents would be. |
| A. | DD and D |
| B. | DD and Dd |
| C. | Dd and Dd |
| D. | Dd and dd |
| Answer» D. Dd and dd | |
| 342. |
In angiosperms, female gametophyte is represented by: |
| A. | Synergids |
| B. | Carpel |
| C. | Egg |
| D. | Pollen grains |
| Answer» E. | |
| 343. |
Which of the following pair has haploid structures? |
| A. | Nucellus and antipodal cells. |
| B. | Antipodal cells and egg cell. |
| C. | Antipodal cells and megaspore mother cell. |
| D. | Nucellus and primary endosperm nucleus. |
| Answer» C. Antipodal cells and megaspore mother cell. | |
| 344. |
The new varieties of plants are produced by: |
| A. | Selection and hybridization |
| B. | Mutation and selection |
| C. | Introduction and mutation |
| D. | Selection and introduction |
| Answer» B. Mutation and selection | |
| 345. |
In the given methodology which has been used for cattle, sheep, buffaloes etc., few steps are marked as 1, 2 and 3. Identify 1, 2 & 3. |
| A. | 1-FSH, 2-Superovulation due to induced follicular maturation, 3-Transfer to surrogate mother |
| B. | 1-LH, 2-Superovulation due to induced follicular maturation, 3-Transfer to surrogate mother |
| C. | 1-Progesterone, 2-Superovulation due to induced follicular maturation, 3-Transfer to surrogate mother |
| D. | 1-Oestrogen, 2-Superovulation due to induced follicular maturation, 3-Transfer to surrogate mother |
| Answer» C. 1-Progesterone, 2-Superovulation due to induced follicular maturation, 3-Transfer to surrogate mother | |
| 346. |
Blood cells which show phagocytosis is [BVP 2004; BHU 2005] |
| A. | Platelet |
| B. | Eosinophil |
| C. | Basophil |
| D. | Monocyte |
| Answer» E. | |
| 347. |
Sex of a human child is determined by [CPMT 1980; MP PMT 1993, 01, 03] |
| A. | Size of the egg at the time of fertilization |
| B. | Size of the sperm at the time of fertilization |
| C. | Sex chromosome of father |
| D. | Sex chromosome of mother |
| Answer» D. Sex chromosome of mother | |
| 348. |
Bast fibres are frequently found in |
| A. | Secondary xylem |
| B. | Secondary phloem |
| C. | Primary phloem |
| D. | Primary xylem |
| Answer» C. Primary phloem | |
| 349. |
Heterotrophic nutrition is present in [CPMT 1985] |
| A. | Vallisneria |
| B. | Pistia |
| C. | Drosera |
| D. | Opuntia |
| Answer» D. Opuntia | |
| 350. |
Smallest plant which contain green pigment such as higher green plant is [CPMT 2002] |
| A. | Schizomycetes |
| B. | Rhodophyceae |
| C. | Chlorophyceae |
| D. | Phaeophyceae |
| Answer» D. Phaeophyceae | |