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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.
| 12851. |
Assertion : Amphioxus has a simple organization compared to vertebrates. Reason : Many important craniate structures are lacking in Amphioxus. |
| 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 | |
| 12852. |
Assertion : Metamerism is the characteristic of annelida. Reason : Metamerism is one type of body segmentation. |
| 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 | |
| 12853. |
'Bat' is classified as a mammal because [DPMT 1987] |
| A. | It has hairs |
| B. | It can fly |
| C. | It has pinna |
| D. | It has testes |
| Answer» B. It can fly | |
| 12854. |
Echolocation is found in [Kerala CET 2002] |
| A. | Insects |
| B. | Birds |
| C. | Bats |
| D. | Monkeys |
| Answer» D. Monkeys | |
| 12855. |
Assertion : Cutaneous glands help in regulation of body temperature. Reason : Cutaneous glands are produced from stratum germinativm. |
| 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 | |
| 12856. |
Read the assertion and reason carefully: Assertion : Persistent sepals of Physalis are called accrescent. Reason : In Guava, the sepals are marcescent. |
| 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 | |
| 12857. |
Whale is air breather but can live under water for a long time because it possesses [CPMT 1997] |
| A. | Large lungs |
| B. | Small lungs |
| C. | Blubber |
| D. | Retea mirabile |
| Answer» E. | |
| 12858. |
Read the assertion and reason carefully: Assertion : Small leaflets are present on the phyllode of Parkinsonia aculeata. Reason : Phyllode does not bear leaves and 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» C. If the assertion is true but the reason is false | |
| 12859. |
The sweat glands in mammals are primarily concerned with [CPMT 1986] |
| A. | Regulation of water content |
| B. | Regulation of body heat |
| C. | Killing of skin bacteria |
| D. | Removal of excess of salt |
| Answer» C. Killing of skin bacteria | |
| 12860. |
Read the assertion and reason carefully: Assertion : In collateral vascular bundles phloem is situated towards inner side. Reason : In monocot stem, cambium is present. [AIIMS 2000] |
| 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 | |
| 12861. |
Assertion : Pinna of ear is elastic in nature. Reason : Hyaline cartilage present in pinna. |
| 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 | |
| 12862. |
Read the assertion and reason carefully: Assertion : Vegetative propagation by cuttings is possible due to the activity of parenchyma. Reason : Parenchyma provides rigidity to the 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 | |
| 12863. |
Leghaemoglobin occurs in [Bih. PMT 1996] |
| A. | Coralloid root |
| B. | BGA |
| C. | Around bacteriods |
| D. | Mycorrhiza |
| Answer» D. Mycorrhiza | |
| 12864. |
Assertion : Hemichordata was previously considered as the class of phylum chordata. Reason : Hemichordates is supposed to have some affinities with chordata. |
| 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 | |
| 12865. |
The evidence for aquatic origin of bryophytes is [CPMT 1995, 2000; KCET 2000] |
| A. | Ciliated sperms |
| B. | Green colour |
| C. | Protonema thread |
| D. | Some are still aquatic |
| Answer» B. Green colour | |
| 12866. |
Humulin is [AMU 1989; CBSE PMT 1999] |
| A. | A form of chitin |
| B. | A powerful antibiotic |
| C. | A new digestive enzyme |
| D. | Human insulin |
| Answer» E. | |
| 12867. |
Which of the following group of animals maintain high and constant body temperature such as mammals [AFMC 2005] |
| A. | Reptiles |
| B. | Amphibians |
| C. | Birds |
| D. | Fishes |
| Answer» D. Fishes | |
| 12868. |
Azolla is used as biofertilizer as it has [DPMT 2001] |
| A. | Rhizobium |
| B. | Cyanobacteria |
| C. | Mycorrhiza |
| D. | Large quantity of humus |
| Answer» C. Mycorrhiza | |
| 12869. |
Assertion : Persons suffering from haemophilia fail to produce blood clotting factor VIII. Reason : Prothrombin producing platelets in such persons are found in very low concentration. [AIIMS 2005] |
| 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 | |
| 12870. |
Which of the following is not an antibiotic [MP PMT 1993] |
| A. | Griseofulvin |
| B. | Cephalosporin |
| C. | Citric acid |
| D. | Streptomycin |
| Answer» D. Streptomycin | |
| 12871. |
The region consisting of long and severe winters and growing season consisting of few months of summers constitutes [CPMT 1991; Pb. PMT 1998] |
| A. | Savannah ecosystem |
| B. | Tiaga ecosystem |
| C. | Tundra ecosystem |
| D. | None of the above |
| Answer» D. None of the above | |
| 12872. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Sometimes nonsmokers are prone to lung cancer. Reason : Nonsmokers are also called passive smokers. |
| 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» C. If assertion is true but reason is false. | |
| 12873. |
Peroxisome are related with [MP PMT 2005; AMU 2005] |
| A. | Photosynthesis |
| B. | Photorespiration |
| C. | Respiration |
| D. | None |
| Answer» C. Respiration | |
| 12874. |
What is the chromosome number of plasmodium [RPMT 2000] |
| A. | 18 |
| B. | 14 |
| C. | 10 |
| D. | 9 |
| Answer» D. 9 | |
| 12875. |
Which of the following is a biome |
| A. | Wheat field |
| B. | Rain water pond |
| C. | Grass field |
| D. | Deciduous forest |
| Answer» E. | |
| 12876. |
Which one of the following is a metatherian mammal [CPMT 1974] |
| A. | Echidna |
| B. | Kangaroo |
| C. | Shrew |
| D. | Pangolin |
| Answer» C. Shrew | |
| 12877. |
The first \[C{{O}_{2}}\] acceptor in \[{{C}_{4}}\] cycle is [MHCET 2002] |
| A. | PGA |
| B. | PEP |
| C. | RuDP |
| D. | DHA |
| Answer» D. DHA | |
| 12878. |
To keep a person healthy, he should be provided: (St. Johns MC 2002) |
| A. | balanced diet |
| B. | high energy food |
| C. | interest and spirit |
| D. | large amount of food |
| Answer» B. high energy food | |
| 12879. |
The wheat grain is a [MP PMT 1993] |
| A. | Fruit |
| B. | Seed |
| C. | Embryo |
| D. | Glume |
| Answer» B. Seed | |
| 12880. |
Assertion : The lampbrush chromosomes are called diplotene chromosomes bivalents. Reason : The number of loops is maximum during diplotene. |
| 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 | |
| 12881. |
Cuscuta is a [CPMT 1994, 2003] |
| A. | Total stem parasite |
| B. | Partial root parasite |
| C. | Saprophyte |
| D. | Partial saprophyte |
| Answer» B. Partial root parasite | |
| 12882. |
Assertion : Sandfly transmits Kala-azar. Reason : In Kala-azar, the parasite damages the 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» D. If both the assertion and reason are false | |
| 12883. |
Most herbicides attack |
| A. | Photosystem I |
| B. | Photosystem II |
| C. | Electron transport system |
| D. | All of these |
| Answer» C. Electron transport system | |
| 12884. |
Bud dormancy is induced by [AIIMS 1999, 2002] |
| A. | ABA |
| B. | IAA |
| C. | Ethylene |
| D. | Gibberellic acid |
| Answer» B. IAA | |
| 12885. |
Number of breeds of Indian Buffalo is |
| A. | 7 |
| B. | 13 |
| C. | 16 |
| D. | 17 |
| Answer» B. 13 | |
| 12886. |
Enzyme phosphoglucomutase belongs to |
| A. | Oxidase |
| B. | Lipase |
| C. | Carboxylase |
| D. | Isomerase |
| Answer» E. | |
| 12887. |
Assertion : Wheat is an example of segmental allopolyploidy. Reason : The three diploid genomes are related. |
| 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 | |
| 12888. |
Which of the following country is lowest in milk yield per cow |
| A. | India |
| B. | U.K. |
| C. | Switzerland |
| D. | Netherlands |
| Answer» B. U.K. | |
| 12889. |
Which of the following types of animals does man chiefly protect [JIPMER 1993] |
| A. | Harmless animals |
| B. | Economically useful |
| C. | Those likely to perish |
| D. | Feeble animals |
| Answer» D. Feeble animals | |
| 12890. |
Human eggs are [CBSE PMT 1991; MP PMT 1997, 99, 2000,02] |
| A. | Microlecithal |
| B. | Alecithal |
| C. | Macrolecithal |
| D. | Mesolecithal |
| Answer» C. Macrolecithal | |
| 12891. |
The fish famous for parental care is |
| A. | Hippocampus |
| B. | Gambusia |
| C. | Labeo |
| D. | Scoliodon |
| Answer» B. Gambusia | |
| 12892. |
Oncogenes were discovered by [AIEEE 2004] |
| A. | S.B. Prussiner |
| B. | F.P. Rous |
| C. | A. Fleming |
| D. | J.M. Bishop and H.E. Vermus |
| Answer» E. | |
| 12893. |
Cheese is prepared from [MP PMT 2001] |
| A. | Lactobacillus |
| B. | Streptococcus |
| C. | Leuconostoc |
| D. | Streptococcus and Lactobacillus |
| Answer» E. | |
| 12894. |
With advancing age in the liver cells there is increased inactivity of |
| A. | Lipase enzyme |
| B. | Ptyalin enzyme |
| C. | Rennin enzyme |
| D. | Aldolase enzyme |
| Answer» E. | |
| 12895. |
Both male and female pigeons secrete milk through [CBSE PMT 1988] |
| A. | Mammary glands |
| B. | Crop glands |
| C. | Salivary glands |
| D. | Gizzard glands |
| Answer» C. Salivary glands | |
| 12896. |
The core of nucleosome is made up of [AFMC 2000] |
| A. | \[{{H}_{1}},{{H}_{2}}A,{{H}_{2}}B,{{H}_{3}}\] |
| B. | \[{{H}_{1}},{{H}_{2}}A,{{H}_{2}}B,{{H}_{4}}\] |
| C. | \[{{H}_{1}},{{H}_{2}}A,{{H}_{2}}B,{{H}_{3}},{{H}_{4}}\] |
| D. | \[{{H}_{2}}A,{{H}_{2}}B,{{H}_{3}},{{H}_{4}}\] |
| Answer» E. | |
| 12897. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Growth curve of higher animals is sigmoid. Reason : Absolute growth is difference between initial and final weight/size of an organism. |
| 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 | |
| 12898. |
Genes which are located on the same chromosome are |
| A. | Allelic to each other |
| B. | Codominant |
| C. | Linked to each other |
| D. | Mutant genes |
| Answer» D. Mutant genes | |
| 12899. |
Carrier of hereditary is [MP PMT 2005] |
| A. | Gene |
| B. | DNA |
| C. | Chromosome |
| D. | All of above |
| Answer» E. | |
| 12900. |
Which of the following environmentalist is pioneer in resource conservation |
| A. | Odum |
| B. | Tansley |
| C. | William Vogi |
| D. | Reiter |
| Answer» D. Reiter | |