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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.
| 10951. |
Which of the following is a matching set in taxonomy [CPMT 1975, 82] |
| A. | Man, chimpanzee, monkey |
| B. | Cuttle fish, jelly fish, silver fish |
| C. | Bat, pigeon, crow |
| D. | Oyster, octopus, star fish |
| Answer» B. Cuttle fish, jelly fish, silver fish | |
| 10952. |
Assertion : Protoplasmic continuity is maintained in perforated septum. Reason : Usually a small pore remains in the centre of the septum. |
| 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 | |
| 10953. |
Pleotropic character represent that quality of gene which is called [DPMT 1980] |
| A. | Being dominant over recessive genes |
| B. | Being capable of representing more than one form |
| C. | Regulate more than one phenotype characters |
| D. | None of the above |
| Answer» D. None of the above | |
| 10954. |
What is agent orange [CBSE PMT 1997] |
| A. | A biodegradable insecticide |
| B. | A weedicide containing dioxin |
| C. | Colour used influorescent lamp |
| D. | A hazardous chemical used in luminous plants |
| Answer» E. | |
| 10955. |
Gestation period for buffalo is |
| A. | 9 months |
| B. | 14 months |
| C. | 10 months |
| D. | 21-22 months |
| Answer» D. 21-22 months | |
| 10956. |
Which of the following is the exception of cell theory [CPMT 1979; DPMT 1985; CMC Vellore 1993; BVP 2004; Kerala PMT 2004] |
| A. | Bacteria |
| B. | Fungi |
| C. | Lichen |
| D. | Virus |
| Answer» E. | |
| 10957. |
Which one of the following is exotic Indian fish [CBSE PMT 1996] |
| A. | Clarias |
| B. | Labeo |
| C. | Cypris |
| D. | Dephnia |
| Answer» B. Labeo | |
| 10958. |
Strasburger is famous for |
| A. | Discovery of cell division |
| B. | Proposing the term nucleoplasm |
| C. | Proposing the term cytoplasm |
| D. | All of these |
| Answer» E. | |
| 10959. |
Blastodisc or germinal disc refers to the protoplasm of egg, this is restricted to small area in |
| A. | Amphibian egg |
| B. | Avian egg |
| C. | Ascidian egg |
| D. | Mammalian egg |
| Answer» C. Ascidian egg | |
| 10960. |
How may mitotic divisions must occur in a cell of root tip to form 256 cells |
| A. | 256 |
| B. | 8 |
| C. | 128 |
| D. | 64 |
| Answer» C. 128 | |
| 10961. |
For viewing diakinesis which one of the following would be a suitable material [MP PMT 2002] |
| A. | Onion root tip |
| B. | Leaf of Dichanthium |
| C. | Rat tail |
| D. | Flower bud |
| Answer» E. | |
| 10962. |
The chemical formula of starch is [RPMT 2002] |
| A. | \[{{({{C}_{6}}{{H}_{10}}{{O}_{5}})}_{n}}\] |
| B. | \[{{({{C}_{6}}{{H}_{12}}{{O}_{6}})}_{n}}\] |
| C. | \[{{C}_{12}}{{H}_{22}}{{O}_{11}}\] |
| D. | \[C{{H}_{3}}COOH\] |
| Answer» B. \[{{({{C}_{6}}{{H}_{12}}{{O}_{6}})}_{n}}\] | |
| 10963. |
If at high altitudes, birds become rare, the plants likely to disappear are [AIIMS 2004] |
| A. | Pine |
| B. | Orchids |
| C. | Oak |
| D. | Rhododendrons |
| Answer» E. | |
| 10964. |
Assertion : Herdmania are sensitive to all types of changes in the environment. Reason : Herdmania possesses a number of receptors in their body. |
| 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 | |
| 10965. |
Anaerobic respiration takes place in the DPMT 1992; MP PMT 2002] |
| A. | Mitochondria |
| B. | Cytoplasm |
| C. | Lysosomes |
| D. | ER |
| Answer» C. Lysosomes | |
| 10966. |
Read the assertion and reason carefully: Assertion : Xerophytic leaves may contain stomatal crypts or sunken stomata. Reason : Spongy parenchyma is more in xerophytic leaves. |
| 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 | |
| 10967. |
Read the assertion and reason carefully: Assertion : Coconut tree is distributed in coastal areas over a large part of the world. Reason : Coconut fruit can float and get dispersed over thousands of kilometers before losing viability. [AIIMS 2004] |
| 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 | |
| 10968. |
Read the assertion and reason carefully: Assertion : Verticillaster is a cymose inflorescence. Reason : The main axis and lateral branches of inflorescence end in flowers. |
| 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 | |
| 10969. |
Alpha diversity is biodiversity present |
| A. | Within community |
| B. | Between community |
| C. | Ranges of communities |
| D. | All the above |
| Answer» B. Between community | |
| 10970. |
Elephants are sought after for |
| A. | Skin |
| B. | Hair |
| C. | Meat |
| D. | Ivory |
| Answer» E. | |
| 10971. |
The term hot spot for high diversity ecological regions was coined by |
| A. | IUCN |
| B. | Myers |
| C. | Odum |
| D. | Kormandy |
| Answer» C. Odum | |
| 10972. |
Enzymes can be immobilised by [Bihar MDAT 1988] |
| A. | Cross-linking enzyme molecules |
| B. | Covalently attaching to a solid support |
| C. | Entrapping them in gel |
| D. | All the above |
| Answer» E. | |
| 10973. |
Meiosis differs from mitosis as |
| A. | It takes place in vegetative cells |
| B. | It shows crossing over |
| C. | It forms two cells |
| D. | Number of chromosomes remain unchanged |
| Answer» C. It forms two cells | |
| 10974. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Tobacco is a local irritant. Reason : It does not show stimulant behaviour. |
| 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» D. If the assertion and reason both are false. | |
| 10975. |
Assertion : Cell like aggregates of complex organic compounds are called coacervates. Reason : Coacervates hand power to grow and divide. |
| 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 | |
| 10976. |
Savannah is found commonly in [Pb. PMT 2000] |
| A. | U.S.A. |
| B. | U.S.S.R. |
| C. | Australia |
| D. | India |
| Answer» D. India | |
| 10977. |
Assertion : The female cones are same in number as male cones. Reason : Male and female cones appears alternately on the same branch of the Pinus. |
| 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 | |
| 10978. |
Assertion : Double circulation is the characteristic of mammals. Reason : Mammals have four chambered heart. |
| 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 | |
| 10979. |
Secale cerelae is a used for the preparation of |
| A. | Wine |
| B. | Beer |
| C. | Both a and b |
| D. | None of the above |
| Answer» D. None of the above | |
| 10980. |
Read the assertion and reason carefully: Assertion : In cymose branching, growth of terminal bud stops after some time. Reason : The growth of the main stem is definite. |
| 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 | |
| 10981. |
Which of the following organic acids was produced by fermentation [Bihar MDAT 1989] |
| A. | Oxalic acid |
| B. | Lactic acid |
| C. | Citric acid |
| D. | Propionic acid |
| Answer» C. Citric acid | |
| 10982. |
.............is a CAM plant [Orissa JEE 2005] |
| A. | Maize |
| B. | Pineapple |
| C. | Onion |
| D. | Pea |
| Answer» C. Onion | |
| 10983. |
Chloromycetin is produced by |
| A. | Bordetella pertusis |
| B. | Streptomyces venezuelae |
| C. | Streptomyces rumosus |
| D. | Clostridium botulinum |
| Answer» C. Streptomyces rumosus | |
| 10984. |
Read the assertion and reason carefully: Assertion : Most common type of ovule is anatropous. Reason : Anatropous ovule is horse ? shoe shaped. |
| 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 | |
| 10985. |
Mycorrhiza is helpful in [CPMT 2003] |
| A. | Synthesis of food |
| B. | Getting nutrients from soil |
| C. | Providing resistance against different regulators |
| D. | Increase the fertility of soil |
| Answer» C. Providing resistance against different regulators | |
| 10986. |
In photorespiration glycolate is converted to \[C{{O}_{2}}\]and serine in [AIEEE 2003] |
| A. | Chloroplasts |
| B. | Peroxisomes |
| C. | Vacuoles |
| D. | Mitochondria |
| Answer» E. | |
| 10987. |
Hormone causing stomatal closure is [Orissa JEE 2005] |
| A. | GA |
| B. | Kinetin |
| C. | ABA |
| D. | IBA |
| Answer» D. IBA | |
| 10988. |
Assertion : Males suffer from sex-linked disorders more often than females. Reason : Traits governed by sex-linked recessive genes. |
| 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 | |
| 10989. |
The number of autosomes in man is [MP PMT 1995] |
| A. | 22 pairs |
| B. | 11 pairs |
| C. | 43 pairs |
| D. | 23 pairs |
| Answer» B. 11 pairs | |
| 10990. |
A pair of insectivorous plants is [CBSE PMT 1999] |
| A. | Drosera and Rafflesia |
| B. | Nepenthes and bladder wart |
| C. | Dionaea and Viscum |
| D. | Venus fly trap and Rafflesia |
| Answer» C. Dionaea and Viscum | |
| 10991. |
Assertion : Thrombin is necessary to initiate blood coagulation. Reason : Thrombin helps in the formation of thromboplastins. |
| 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 | |
| 10992. |
Assertion : The tRNA molecules possess anticodons. Reason : It needs the message in form of codon. [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» C. If the assertion is true but the reason is false | |
| 10993. |
Assertion : If\[C{{O}_{2}}\]is increasing continuously, there will be a increase in photosynthesis. Reason : \[C{{O}_{2}}\]is the main substrate of photosynthesis. |
| 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. | |
| 10994. |
Assertion : Only a few sponges are really harmful. Reason : Sponges may kill other trophic level. |
| 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 | |
| 10995. |
In fermentation, yeast secrets one of the following enzyme [MP PMT 1989] |
| A. | Invertase |
| B. | Zymase |
| C. | Dehydrogenase |
| D. | Anolase |
| Answer» C. Dehydrogenase | |
| 10996. |
Avena sativa is used as a |
| A. | Cattle feed |
| B. | Birds meal |
| C. | Meals for the fishes |
| D. | None of the above |
| Answer» B. Birds meal | |
| 10997. |
Major food crops of the world belong to the family [DPMT 1990] |
| A. | Leguminosae |
| B. | Cruciferae |
| C. | Solanaceae |
| D. | Graminae |
| Answer» E. | |
| 10998. |
Which one among the following is likely to have the highest levels of DDT deposition in its body [CBSE PMT 1994; BVP 2004] |
| A. | Seagull |
| B. | Crab |
| C. | Eel |
| D. | Phytoplankton |
| Answer» B. Crab | |
| 10999. |
Agranal chloroplasts occur in certain [MP PMT 1995, 98] |
| A. | Succulents |
| B. | \[{{C}_{4}}\]plants |
| C. | Hydrophytes |
| D. | \[{{C}_{3}}\]plants |
| Answer» C. Hydrophytes | |
| 11000. |
The outer layer of the blastocyst which forms the ectoderm is called [MP PMT 1995] |
| A. | Cnidoblast |
| B. | Germinal vesicle |
| C. | Trophoblast |
| D. | Amnion |
| Answer» D. Amnion | |