MCQOPTIONS
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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1301. |
By which condition flowering take place in short day plant ? |
| A. | Short day and long night |
| B. | Short day and short night |
| C. | Short night |
| D. | Long day and short night |
| Answer» B. Short day and short night | |
| 1302. |
Vernalization means.............. |
| A. | Growth Graph |
| B. | Flowering at high temperature |
| C. | Effect of light on growth |
| D. | Speedy flowering at low temperature |
| Answer» E. | |
| 1303. |
Demonstration of cytoplasmic movement in living cell can be observed in ........ |
| A. | Onion cell |
| B. | Medullary cells |
| C. | Leaf cells of tradescantia |
| D. | Cells of vascular bundle |
| Answer» D. Cells of vascular bundle | |
| 1304. |
Which of the following is long-day plant ? |
| A. | Oat |
| B. | Soyabean |
| C. | Vinca |
| D. | Paddy |
| Answer» B. Soyabean | |
| 1305. |
What is called the effect of daylight on plant ? |
| A. | Phototropic |
| B. | Photoperiodism |
| C. | Photooxidatio |
| D. | Photonastism |
| Answer» C. Photooxidatio | |
| 1306. |
In wich circumstances psuedopodial spore are produced ? |
| A. | Normal |
| B. | Favourable |
| C. | Unfavourable |
| D. | Specific condition |
| Answer» D. Specific condition | |
| 1307. |
Match the approriate pairs. |
| A. | P-i, Q-ii,R-iii, S-iv |
| B. | P-iv, Q-iii, R-ii, S-i |
| C. | P-ii, Q-iv, R-i, S-iii |
| D. | P-ii, Q-iv, R-iii, S-i |
| Answer» D. P-ii, Q-iv, R-iii, S-i | |
| 1308. |
Which of the following is correct option for seed germination ? |
| A. | Emergance of radicle from primary root |
| B. | Emergance of primary root forms from radicle |
| C. | Development of primary root |
| D. | No root formation |
| Answer» C. Development of primary root | |
| 1309. |
Flagellated spore is known as___________. |
| A. | Non-flaglleted spore |
| B. | Motile spore |
| C. | spore |
| D. | Hetero spore |
| Answer» C. spore | |
| 1310. |
Conidia spore is known as ___________ |
| A. | Motile spore |
| B. | Non-flaglleted spore |
| C. | spore |
| D. | Hetero spore |
| Answer» C. spore | |
| 1311. |
Which type of reproduction is shown in following figure ? |
| A. | Fission |
| B. | Binary fission |
| C. | Multiple fission |
| D. | Sporulation |
| Answer» E. | |
| 1312. |
Which type of asexual reproduction takes place in sycon and spongilla ? |
| A. | Exo budding |
| B. | Endo budding |
| C. | Fragmentation |
| D. | Division |
| Answer» C. Fragmentation | |
| 1313. |
In a given figure which type of asexual reproduction take place ? |
| A. | Fission |
| B. | Binary fission |
| C. | Transverse binary fission |
| D. | Longitudinal binary fission |
| Answer» D. Longitudinal binary fission | |
| 1314. |
In following figure identify and give the correct names of types of reproduction and 'A' and "B'. |
| A. | Asexual reproduction; A-bud, B-Tentacle |
| B. | Binary fission ; A-bud, B-Tentacle |
| C. | Multiple fission ; A-bud, B-Tentacle |
| D. | Budding fission ; A-bud, B-Tentacle |
| Answer» E. | |
| 1315. |
In which reproductive system plants,Animals & Fungi or differentiated morphologically, histologically,and physiologicaly ? |
| A. | Asexual |
| B. | Sexual |
| C. | Vegetative |
| D. | Artificial reproduction |
| Answer» C. Vegetative | |
| 1316. |
Which asexual reproduction three layered encysts develop ? |
| A. | Binary fission |
| B. | multiple fisssion |
| C. | Sporulation |
| D. | Fragmentation |
| Answer» D. Fragmentation | |
| 1317. |
Match appropriate pairs. |
| A. | P-i, Q-ii,R-iii, S-iv |
| B. | P-iii, Q-i, R-iv,S-ii |
| C. | P-ii, Q-iii, R-iv, S-i |
| D. | P-iii, Q-i, R-ii, S-iv |
| Answer» C. P-ii, Q-iii, R-iv, S-i | |
| 1318. |
In a given figure which part is correct ? |
| A. | Nucleu |
| B. | Cytoplasm |
| C. | Cell membrance |
| D. | All (a, b, c) |
| Answer» D. All (a, b, c) | |
| 1319. |
Asexual reproduction takes place by which method in dictyota and fucus ? |
| A. | By Bud method |
| B. | By Binary fission |
| C. | By Multiple fission |
| D. | By Fragmentation |
| Answer» B. By Binary fission | |
| 1320. |
How many chromosome number are seen in Onion and Housefly during meiosis ? |
| A. | 32,12 |
| B. | 16,12 |
| C. | 16,06 |
| D. | 32,06 |
| Answer» D. 32,06 | |
| 1321. |
Match the appropriate pairs. |
| A. | P-i, Q-ii,R-iii, S-iv |
| B. | P-ii, Q-iii, R-iv, S-i |
| C. | P-iii, Q-iv, R-i, S-ii |
| D. | P-iii, Q-iR-ii, S-iv |
| Answer» D. P-iii, Q-iR-ii, S-iv | |
| 1322. |
Which are the labelled part A and B ? |
| A. | Fruit and plumale |
| B. | Plumule and radicle |
| C. | Fruit and radicle |
| D. | Plumule and cotyledon |
| Answer» D. Plumule and cotyledon | |
| 1323. |
Movement of cilia in Drocera, depends on which factor ? |
| A. | Light |
| B. | Temperature |
| C. | Touch |
| D. | Osmosis |
| Answer» D. Osmosis | |
| 1324. |
Identify A, B and C in the following figure. |
| A. | A-nucleus, B-chloroplast, C-Pyrenoids |
| B. | A-chloroplast, B-pyrenoid, C- nucleus |
| C. | A-pyrenoid ,B-nucleus,C-chloroplast |
| D. | A-chloroplast,B-nucleus,C-mitochondria |
| Answer» D. A-chloroplast,B-nucleus,C-mitochondria | |
| 1325. |
Which are the various stages of sexual reproduction ? |
| A. | Growth, Development, Diffrentiation. |
| B. | Pre fertilization, Fertilization, Post fertilization. |
| C. | Fertilization, Post Fertilization, Pre Fertilization. |
| D. | Gametogenesis, Gamete transfer, Gamete Fertilization. |
| Answer» C. Fertilization, Post Fertilization, Pre Fertilization. | |
| 1326. |
In which development of zygote takes place in female is called as........ in animals. |
| A. | Oviparou |
| B. | Viviparous |
| C. | Ovoviviparous |
| D. | None |
| Answer» C. Ovoviviparous | |
| 1327. |
Which organism becomes reproductive due to deficiency of mitosis and meiosis ? |
| A. | Dog |
| B. | Ameoba |
| C. | Grasshopper |
| D. | Earthworm |
| Answer» C. Grasshopper | |
| 1328. |
Match the list :_ans_key_Column I Column II_ans_key_(P) Plasmodium of slime mould (i) Ciliary movement_ans_key_(Q) Chlamydomonas algae (ii) Circular movement_ans_key_(R) protoplasm of tradenschantia leaf (iii) Rotational movement_ans_key_(S) Protoplasm of hydrilla (iv) Amoeboid movement leaves |
| A. | (P-i), (Q-ii), (R-iii), (S-iv) |
| B. | (P-iv), (Q-iii), (R-iv), (S-i) |
| C. | (P-iv), (Q-i), (R-ii), (S-iii) |
| D. | (P-iv), (Q-ii), (R-i), (S-iii) |
| Answer» D. (P-iv), (Q-ii), (R-i), (S-iii) | |
| 1329. |
In certain condition, dividing cell, loose their ability of cell division, it is called ....... |
| A. | Differentiation |
| B. | Cleavage |
| C. | De-differentiation |
| D. | Undifferentiation |
| Answer» E. | |
| 1330. |
Which organic chemicals are included in shoot with photoperiodism ? (AIIMS-1996) |
| A. | Ethylene |
| B. | Cytokinin |
| C. | Auxin |
| D. | Gibberrelin |
| Answer» E. | |
| 1331. |
Motor cells of leaves and grass, shows which type of movement ? (AIIMS-1996) |
| A. | Locomotory movement |
| B. | Growth movement |
| C. | Nastic movement |
| D. | Osmotic movement |
| Answer» E. | |
| 1332. |
Mention part A and B, labelled in the figure. |
| A. | Radicle, primary root |
| B. | Epicotyl, radicle |
| C. | Hypocotyl, primary root |
| D. | Epicotyl, primary root |
| Answer» D. Epicotyl, primary root | |
| 1333. |
Which of the example is improper for tropic movement ? |
| A. | Volvox |
| B. | Antherozoids of bryophytes |
| C. | Antherozoids of pteridophytes |
| D. | Mimosa |
| Answer» E. | |
| 1334. |
Match the following :_ans_key_Column I Column II_ans_key_(P) Zoospore of volvox (i) Thermo taxis_ans_key_(Q) Antherozoids of bryophytes and pteridophytes (ii) Thigmo taxis_ans_key_(R) Diatoms (iii) Photo taxis_ans_key_(S) Zoospores in oedogonium (iv) Chemo taxis |
| A. | (P-i), (Q-ii), (R-iii), (S-iv) |
| B. | (P-iv), (Q-iii), (R-ii), (S-i) |
| C. | (P-iii), (Q-iv), (R-i), (S-ii) |
| D. | (P-iii), (Q-ii), (R-i), (S-iv) |
| Answer» D. (P-iii), (Q-ii), (R-i), (S-iv) | |
| 1335. |
Match the list :_ans_key_Column I Column II_ans_key_(P) Volvox (i) Chemotaxis_ans_key_(Q) Mimosa (ii) Phototaxis_ans_key_(R) Antherozoids of bryophytes (iii) Movement / tropism_ans_key_(S) Leaf tendril (iv) Thigmotropism |
| A. | (P-i), (Q-ii), (R-iii), (S-iv) |
| B. | (P-ii), (Q-iii), (R-iv), (S-i) |
| C. | (P-ii), (Q-iv), (R-i), (S-iii) |
| D. | (P-iv), (Q-iii), (R-ii), (S-i) |
| Answer» D. (P-iv), (Q-iii), (R-ii), (S-i) | |
| 1336. |
Which is the labelled part A and B given in the figure ? |
| A. | Cotyledon and Hypocotyl |
| B. | Cotyledon and plumble |
| C. | Cotyledon and Epicotyl |
| D. | Fruit and hypocotyl |
| Answer» B. Cotyledon and plumble | |
| 1337. |
With, what nutation is related ? |
| A. | Autonomous movement |
| B. | Induced movement |
| C. | Autonomous curvature movement |
| D. | Induced curvature movement |
| Answer» D. Induced curvature movement | |
| 1338. |
What is A and B in the given figure ? |
| A. | Senescence and death |
| B. | Death and senescence |
| C. | Growth and death |
| D. | Death and senescence |
| Answer» B. Death and senescence | |
| 1339. |
Match the list :_ans_key_Column I Column II_ans_key_(P) Phototropism (i) Water_ans_key_(Q) Geotropism (ii) Gravitation_ans_key_(R) Hydrotropism (iii) Light_ans_key_(S) Thigmotropism (iv) Touch |
| A. | (P-i), (Q-ii), (R-iii), (S-iv) |
| B. | (P-iii), (Q-ii), (R-i), (S-iv) |
| C. | (P-iv), (Q-iii), (R-ii), (S-i) |
| D. | (P-iii), (Q-ii), (R-iv), (S-i) |
| Answer» C. (P-iv), (Q-iii), (R-ii), (S-i) | |
| 1340. |
What is the direction of tropism ? |
| A. | Straight |
| B. | Oblique |
| C. | Undirectional |
| D. | Directional |
| Answer» E. | |
| 1341. |
Match the list :_ans_key_Column I Column II_ans_key_(P) Lotus and sunflower (i) Hydronasty_ans_key_(Q) Crocus and tulip (ii) Thigmonasty_ans_key_(R) Due to turgidity of leauses (iii) Thermonasty_ans_key_(S) Mimosa (iv) Photonasty |
| A. | (P-iv), (Q-iii), (R-i), (S-iii) |
| B. | (P-i), (Q-ii), (R-iii), (S-iv) |
| C. | (P-ii), (Q-iii), (R-iv), (S-i) |
| D. | (P-i), (Q-iii), (R-ii), (S-iv) |
| Answer» B. (P-i), (Q-ii), (R-iii), (S-iv) | |
| 1342. |
Match the following :_ans_key_Column I Column II_ans_key_(P) Opening of leaf blade (i) Epinasty_ans_key_(Q) Closing of leaves (ii) Hyponasty_ans_key_(R) Zigzag movement in apical bud (iii) Nutation_ans_key_(S) Spiral and helical growth of tendrilar plants (iv) Circumnutation_ans_key_(T) Pulsation in leaflets of indian telegraph plant (v) Variation |
| A. | (P-i), (Q-ii), (R-iii), (S-iv), (T-v) |
| B. | (P-v), (Q-iv), (R-iii), (S-ii), (T-i) |
| C. | (P-v), (Q-i), (R-iv), (S-iii), (T-ii) |
| D. | (P-v), (Q-i), (R-iv), (S-ii), (T-iii) |
| Answer» D. (P-v), (Q-i), (R-iv), (S-ii), (T-iii) | |
| 1343. |
Which activity in plant is observed due to ethylene ? |
| A. | Matutiation of leaf |
| B. | Maturation of fruit |
| C. | Maturation of flower |
| D. | Maturation of seeds |
| Answer» C. Maturation of flower | |
| 1344. |
Which of the following type is improper for nastism ? |
| A. | Photonasty |
| B. | Hydronasty |
| C. | Thermonasty |
| D. | Phototropism |
| Answer» E. | |
| 1345. |
Which of the following is incorrect for tropism ? |
| A. | Phototropism |
| B. | Thermotropism |
| C. | Hydrotropism |
| D. | Thigmotaxis |
| Answer» E. | |
| 1346. |
Which are the part labelled as A, B and C sequentially in the figure ? |
| A. | Seed coat, cotyledon, plumule |
| B. | Seed coat, Endosperm, plumule |
| C. | Plumule, radicle, cotyledon |
| D. | Cotyledon, plumule, embryo |
| Answer» C. Plumule, radicle, cotyledon | |
| 1347. |
Which type of dormancy is found in seed causes physiology and external dormancy ? |
| A. | Mixed dormancy |
| B. | External dormancy |
| C. | Physiological dormancy |
| D. | Endogenous dormancy |
| Answer» B. External dormancy | |
| 1348. |
If cells obtain ability of cell division in certain circumstances, it is called ......... |
| A. | Differentiation |
| B. | Cleavage |
| C. | De-Deferentiation |
| D. | Undifferentiation |
| Answer» D. Undifferentiation | |
| 1349. |
Which factor increases in plant in absence of light ? |
| A. | Availability of water, increases ascent of sap. |
| B. | Availability of mineral ion, increases mineral nutrition |
| C. | Area of leaf-blade increase, rate of transpiration increases. |
| D. | Length of internode increases, growth of plant in longitudinal axis. |
| Answer» E. | |
| 1350. |
Covering surrouding embryo contain growth inhibitor hormone for .......... dormancy. |
| A. | Physical dormancy |
| B. | Mechanical dormancy |
| C. | External dormancy |
| D. | Chemical dormncy |
| Answer» E. | |