MCQOPTIONS
Saved Bookmarks
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.
| 11551. |
Number of chromosomes present in gorilla is |
| A. | 46 |
| B. | 44 |
| C. | 48 |
| D. | 50 |
| Answer» D. 50 | |
| 11552. |
Animals species should be preserved mainly because [JIPMER 1993] |
| A. | They are lovely creatures |
| B. | They are useful to mankind |
| C. | Man cannot recreate a species of animals if it be destroyed |
| D. | Zoologists want to study them |
| Answer» C. Man cannot recreate a species of animals if it be destroyed | |
| 11553. |
Honey is [CBSE PMT 1997] |
| A. | Acidic |
| B. | Neutral |
| C. | Alkaline |
| D. | Basic after some days |
| Answer» B. Neutral | |
| 11554. |
Among the following colonial insects are [CPMT 2000] |
| A. | Locusts |
| B. | White ants |
| C. | Bed bugs |
| D. | Mosquitoes |
| Answer» C. Bed bugs | |
| 11555. |
Assertion : Adjacent monosaccharides are held by glycosidic bonds. Reason : Monosaccharides are macromolecules. |
| 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 | |
| 11556. |
Assertion : Rhabdome is present in Palaemon. Reason : Rhabdome has an important role in digestion. |
| 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 | |
| 11557. |
Angiosperms and gymnosperms resemble in having |
| A. | Vessels in wood |
| B. | Mode of fertilization |
| C. | Siphonogamy |
| D. | Nature of endosperm |
| Answer» D. Nature of endosperm | |
| 11558. |
Botanical name of sea palm is |
| A. | Polysiphonia |
| B. | Postelsia |
| C. | Ectocarpus |
| D. | Macrocystis |
| Answer» C. Ectocarpus | |
| 11559. |
In order to calculate map distance of genes on a chromosome, one must know the [AIEEE 2004] |
| A. | Number of mutant genes |
| B. | Cross over percentage |
| C. | Recombination frequency of each gene locus |
| D. | Non-cross over percentage |
| Answer» C. Recombination frequency of each gene locus | |
| 11560. |
The typical biome of an area having 50 to 100cm of rainfall is |
| A. | Desert |
| B. | Grassland |
| C. | Deciduous forest |
| D. | Coniferous forest |
| Answer» C. Deciduous forest | |
| 11561. |
Assertion : Aerobic respiration consists of two steps. Reason : Glycolysis is called as common pathway. |
| 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. | |
| 11562. |
Centrioles and centrosomes are present in cells of [MP PMT 1997; Haryana PMT 2005] |
| A. | Bacteria |
| B. | Cyanobacteria |
| C. | Green plants |
| D. | Animals |
| Answer» E. | |
| 11563. |
In India the rhinoceros is the most important protected species in [CBSE PMT 1994; KCET 2000; MP PMT 2003; Kerala CET 2003] |
| A. | Dachigam National Park |
| B. | Kaziranga National Park |
| C. | Sunderbans National Park |
| D. | Dudhwa National Park |
| Answer» C. Sunderbans National Park | |
| 11564. |
Which one is endangered member of flora [BHU 2003] |
| A. | Drosera indica |
| B. | One horned Rhino |
| C. | Flying Squirrel |
| D. | None of the above |
| Answer» B. One horned Rhino | |
| 11565. |
Auxins are [CPMT 1984, 85] |
| A. | Growth catalysts |
| B. | Destroyers of growth |
| C. | Growth hormones |
| D. | Inhibitors of growth |
| Answer» D. Inhibitors of growth | |
| 11566. |
Forests participate in [CPMT 1994] |
| A. | Controlling pollution |
| B. | Prevention of soil erosion |
| C. | Maintenance of ecological balance |
| D. | All the above |
| Answer» E. | |
| 11567. |
Simple sugar of the blood is: |
| A. | sucrose |
| B. | lactose |
| C. | glucose |
| D. | galactose |
| Answer» D. galactose | |
| 11568. |
Plants identical to mother plants can be had obtained from [CPMT 1975] |
| A. | Seeds |
| B. | Stem cutting |
| C. | Both [a] and [b] |
| D. | None of these |
| Answer» C. Both [a] and [b] | |
| 11569. |
Assertion : Gymnosperms seeds are naked. Reason : They lack ovary wall. |
| 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 | |
| 11570. |
How many mitotic divisions are needed for a single cell to make 128 cells [CBSE PMT 1997; AFMC 1999] |
| A. | 7 |
| B. | 14 |
| C. | 28 |
| D. | 32 |
| Answer» B. 14 | |
| 11571. |
Assertion : The sporogonium of Riccia is the simplest among the liverworts. Reason : Sporophyte consists of capsule only. |
| 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 | |
| 11572. |
Burning of fossil fuels affects |
| A. | Nitrogen cycle |
| B. | Carbon cycle |
| C. | Phosphorus cycle |
| D. | Water cycle |
| Answer» C. Phosphorus cycle | |
| 11573. |
Read the assertion and reason carefully: Assertion : Prickles lack vascular cylinder. Reason : Prickles show deposition of silica or calcium carbonate. |
| 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 | |
| 11574. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Smaller the organism higher is the rate of metabolism per gram weight. Reason : The heart rate of a six month old baby is much higher than that of an old person.[AIIMS 2003] |
| 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 | |
| 11575. |
The term "meiosis'' was coined by |
| A. | Hertwig and Van Bevedin |
| B. | Sutton and Boveri |
| C. | Hofmeister and Waldeyer |
| D. | Farmer and Moore |
| Answer» E. | |
| 11576. |
Chromonemata start associating into bivalent chromosomes during [MP PMT 1997; J&K CET 2002] |
| A. | Zygotene |
| B. | Leptotene |
| C. | Pachytene |
| D. | Diplotene |
| Answer» B. Leptotene | |
| 11577. |
In an organism that has 44 chromosomes i.e. 22 homologous pairs; at the end of first meiotic division the daughter cell will have [CPMT 1974] |
| A. | 44 chromosomes |
| B. | 11 chromosomes |
| C. | 22 chromosomes |
| D. | Any number between 44 and 22 |
| Answer» D. Any number between 44 and 22 | |
| 11578. |
Assertion : In snakes, the transference of venom is controlled by muscles. Reason : The poison apparatus in snake is associated with three types of muscles. |
| 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 | |
| 11579. |
Assertion : Lining of some hollow organs & cavities are moist. Reason : This is because of the mucus secreted by the connective tissue. |
| 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 | |
| 11580. |
Assertion : Balanoglossus is often considered as 'acorn worms'. Reason : The word 'acorn worm' has no meaning. |
| 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 | |
| 11581. |
The plant cell wall is made up of cellulose. This is believed to be [CPMT 1984, 93; MP PMT 2002] |
| A. | A liquid |
| B. | A protein |
| C. | A polysaccharide |
| D. | An amino acid |
| Answer» D. An amino acid | |
| 11582. |
The formation of gametophyte from the sporophyte (without meiosis) is called [AMU 2005] |
| A. | Apospory |
| B. | Apogamy |
| C. | Agametospermy |
| D. | None of these |
| Answer» B. Apogamy | |
| 11583. |
Most serious threat to wild life comes from |
| A. | Introduction of exotic species |
| B. | Over exploitation |
| C. | International trade |
| D. | Habitat destruction |
| Answer» E. | |
| 11584. |
Pachytene occurs during [MP PMT 1994] |
| A. | Meiosis |
| B. | Mitosis |
| C. | Growth of a cell |
| D. | Formation of endosperm |
| Answer» B. Mitosis | |
| 11585. |
In unisexual plants, sex can be changed by the application of [BHU 1982] |
| A. | Ethanol |
| B. | Auxins |
| C. | Cytokinin |
| D. | ABA |
| Answer» C. Cytokinin | |
| 11586. |
The polytene chromosomes were discovered for the first time in [CBSE PMT 1995] |
| A. | Chironomus |
| B. | Fruitfly |
| C. | Drosophila |
| D. | House fly |
| Answer» B. Fruitfly | |
| 11587. |
Fertility of soil is measured by its ability to [CBSE PMT 1992] |
| A. | Retain nutrients |
| B. | Hold organic materials |
| C. | Hold water |
| D. | Support life |
| Answer» E. | |
| 11588. |
Which is not cancer [MP PMT 1995] |
| A. | Leukaemia |
| B. | Glaucoma |
| C. | Carcinoma |
| D. | Sarcoma |
| Answer» C. Carcinoma | |
| 11589. |
Branch of Botany is connected with study of food, fibre and wood yielding plant [MP PMT 2002] |
| A. | Ethnobotany |
| B. | Paleobotany |
| C. | Economic botany |
| D. | Microbiology |
| Answer» D. Microbiology | |
| 11590. |
Which one of the following is not a true amphibian animal [CBSE PMT 1988] |
| A. | Frog |
| B. | Tortoise |
| C. | Salamander |
| D. | Toad |
| Answer» C. Salamander | |
| 11591. |
In man, sperms contain autosomes and [KCET 1999] |
| A. | Only Y chromosome |
| B. | Only X chromosome |
| C. | Both X and Y chromosomes |
| D. | Either X or Y chromosomes |
| Answer» E. | |
| 11592. |
Which one of the following is a metatherian [DPMT 1992] |
| A. | Didelphis |
| B. | Ornithorhynchus |
| C. | Tarsier |
| D. | Hysterics |
| Answer» B. Ornithorhynchus | |
| 11593. |
Read the assertion and reason carefully: Assertion : In grasses and cereals, intercalary meristems are not present. Reason : Intercalary meristems form permanent tissues. |
| 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. | |
| 11594. |
Phosphorus cycles in the form of |
| A. | \[HP{{O}^{3-}}\] |
| B. | \[{{P}^{2}}\] (gas) |
| C. | \[PO_{4}^{3-}\] |
| D. | \[A{{l}_{2}}{{(P{{O}_{4}})}_{3}}\] |
| Answer» D. \[A{{l}_{2}}{{(P{{O}_{4}})}_{3}}\] | |
| 11595. |
Which of the following is required for transformation of oxaloacetic acid into malic acid |
| A. | NADP |
| B. | \[NADP{{H}_{2}}\] |
| C. | Both [a] and [b] |
| D. | None of the above |
| Answer» C. Both [a] and [b] | |
| 11596. |
The genes, which are confined to differential region of Y chromosome only, are called [AIIMS 1998; MP PMT 2000; CBSE PMT 1994; CPMT 2003] |
| A. | Mutant |
| B. | Autosomal |
| C. | Holandric |
| D. | Completely sex-linked |
| Answer» D. Completely sex-linked | |
| 11597. |
Biochemical cycle with gaseous phase is [DPMT 2001] |
| A. | Carbon |
| B. | Sodium |
| C. | Phosphorus |
| D. | Magnesium |
| Answer» B. Sodium | |
| 11598. |
Vaccine for small pox was developed by |
| A. | Cesor Milstein |
| B. | Louis Pasteur |
| C. | Edward Jenner |
| D. | Salman Waksman |
| Answer» D. Salman Waksman | |
| 11599. |
Assertion : Plasmids are single-stranded extra chromosomal DNA. Reason : Plasmids are possessed by eukaryotic 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 | |
| 11600. |
Assertion : Formation of new species is called speciation. Reason : The deme has a common gene pool. |
| 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 | |