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.
| 9951. |
Which of element is given in less quantity to develop attractive colour to apple |
| A. | Zinc |
| B. | Hydrogen |
| C. | Nitrogen |
| D. | Chlorine |
| Answer» D. Chlorine | |
| 9952. |
Example of amide enzyme is |
| A. | Arginase |
| B. | Lactase |
| C. | Zymase |
| D. | Lipase |
| Answer» B. Lactase | |
| 9953. |
Dorsal vessel of Earthworm is [APMEE 1996; Pb. PMT 1999] |
| A. | Distribution |
| B. | Collecting |
| C. | Collecting in first thirteen segments and distributing in the rest |
| D. | Distributing in first thirteen segments and collecting in the rest |
| Answer» E. | |
| 9954. |
The number of antherozoids produced from an antheridium of Selaginella is [BHU 1991] |
| A. | 64 |
| B. | 256 and above |
| C. | 25 to 50 |
| D. | 128 to 256 |
| Answer» E. | |
| 9955. |
A fungus which requires only one single host for completion of its life cycle is called [CPMT 1983; DPMT 1986; CET Chd. 2000] |
| A. | Heteroecious |
| B. | Autoecious |
| C. | Heterothallism |
| D. | Heterosporous |
| Answer» C. Heterothallism | |
| 9956. |
Marine protozoans lack contractile vacuole because [DPMT 2001] |
| A. | Their body cannot accommodate it |
| B. | They are hypo osmotic to their environment |
| C. | They are isotonic with their environment |
| D. | Osmoregulation is done by cell membrane |
| Answer» C. They are isotonic with their environment | |
| 9957. |
A bacterium divides every 35 minutes. If a culture containing \[{{10}^{5}}\,cells/ml\]is grown for 175 minutes. What will be the cell concentration / ml after 175 minutes [CBSE PMT 1998; BHU 2004] |
| A. | \[175\times {{10}^{5}}\,cells\] |
| B. | \[85\times {{10}^{5}}\,cells\] |
| C. | \[35\times {{10}^{5}}\,cells\] |
| D. | \[32\times {{10}^{5}}\,cells\] |
| Answer» E. | |
| 9958. |
Achondroplasia is a disease related with the defect in the ossification of |
| A. | Membrane |
| B. | Cartilage |
| C. | Both |
| D. | None |
| Answer» C. Both | |
| 9959. |
Which of the following of frog is used as a food |
| A. | Legs |
| B. | Liver |
| C. | Spleen |
| D. | Bone marrow |
| Answer» B. Liver | |
| 9960. |
Which one of the following sequences was proposed by Darwin and Wallace for organic evolution [CBSE PMT 2003] |
| A. | Variations, natural selection, overproduction, constancy of population size. |
| B. | Overproduction, variations, constancy of population size, natural selection. |
| C. | Variations, constancy of population size, overproduction, natural selection. |
| D. | Overproduction, constancy of population size, variations, natural selection. |
| Answer» E. | |
| 9961. |
The coloured part in Poinsettia (Euphorbia) is [MP PMT 1987] |
| A. | Perianth |
| B. | Petal |
| C. | Leaf |
| D. | Bract |
| Answer» D. Bract | |
| 9962. |
Why do fishes in an aquarium thrive better if green plants are growing there because they [BHU 1975] |
| A. | Inhale oxygen released by green plants |
| B. | Inhale carbon dioxide released by green plants |
| C. | Can feed of them |
| D. | Like green surrounding |
| Answer» B. Inhale carbon dioxide released by green plants | |
| 9963. |
The emperical formula for chlorophyll 'a' is [KCET (Med.) 1994, 2000; AFMC 1994] |
| A. | \[{{C}_{35}}{{H}_{72}}{{O}_{5}}{{N}_{4}}Mg\] |
| B. | \[{{C}_{55}}{{H}_{70}}{{O}_{6}}{{N}_{4}}Mg\] |
| C. | \[{{C}_{55}}{{H}_{72}}{{O}_{5}}{{N}_{4}}Mg\] |
| D. | \[{{C}_{54}}{{H}_{70}}{{O}_{6}}{{N}_{4}}Mg\] |
| Answer» D. \[{{C}_{54}}{{H}_{70}}{{O}_{6}}{{N}_{4}}Mg\] | |
| 9964. |
How the level of organic acid varies with the absorption of cations |
| A. | Acid level remains unchanged |
| B. | Acid level increases |
| C. | Acid level decreases |
| D. | Acid synthesis stopped |
| Answer» C. Acid level decreases | |
| 9965. |
Amylopsin acts upon [BHU 1991] |
| A. | Polysaccharide in any medium |
| B. | Polysaccharide in acidic medium |
| C. | Polysaccharide in alkaline medium |
| D. | Polysaccharide in neutral medium |
| Answer» D. Polysaccharide in neutral medium | |
| 9966. |
Find out the correct sequence in body ball of Ascaris |
| A. | Cuticle, epidermis, longitudinal muscles and circular muscles |
| B. | Cuticle, epidermis and longitudinal muscles |
| C. | Epidermis, cuticle, longitudinal muscles and circular muscles |
| D. | Epidermis, longitudinal muscles, cuticle and circular muscles |
| Answer» C. Epidermis, cuticle, longitudinal muscles and circular muscles | |
| 9967. |
Which of the following alga shows heterotrichous habit [AIIMS 1992] |
| A. | Oedogonium |
| B. | Chlamydomonas |
| C. | Ulothrix |
| D. | Stigeoclonium |
| Answer» E. | |
| 9968. |
The edible part of mushroom is [CPMT 2003] |
| A. | Basidiopcarp |
| B. | Tertiary mycelium |
| C. | Primary mycelium |
| D. | Secondary mycelium |
| Answer» B. Tertiary mycelium | |
| 9969. |
Amoeba stops producing pseudopodia during [Haryana PMT 2001] |
| A. | Alkaline condition |
| B. | Starvation |
| C. | Acidic condition |
| D. | Touch |
| Answer» C. Acidic condition | |
| 9970. |
'The integration process' in which a bacterial cell remain undestroyed and unaffected even in the presence of 'phage' is called as |
| A. | Plaques |
| B. | Virion |
| C. | Viroid |
| D. | Lysogeny |
| Answer» E. | |
| 9971. |
The example of pneumatic bone in human being is |
| A. | Maxilla |
| B. | Scapula |
| C. | Patella |
| D. | Pisiform |
| Answer» B. Scapula | |
| 9972. |
Which one these are never present in frog's ovary [CBSE PMT 1989] |
| A. | Oogonia |
| B. | Corpus luteum |
| C. | Ovarian follicles |
| D. | Germinal epithelium |
| Answer» C. Ovarian follicles | |
| 9973. |
When a cell with 40 chromosomes undergoes meiosis, each of the four resulting cells has [CPMT 1987; BHU 2001; CPMT 2003] |
| A. | 20 chromosomes |
| B. | 40 chromosomes |
| C. | 80 chromosomes |
| D. | 10 chromosomes |
| Answer» B. 40 chromosomes | |
| 9974. |
Adaptation of a species is its [AIIMS 2001] |
| A. | Ecdysis |
| B. | Metamorphosis |
| C. | Acquired character |
| D. | Hereditary character |
| Answer» E. | |
| 9975. |
In potato tubers, reserve food is starch. It is stachyose in Stachys (Chinese artichoke) tubers. It Jerusalem artichoke (Helianthus tuberosus), the reserve food is in the form of fan shaped crystals composed of |
| A. | Starch |
| B. | Insulin |
| C. | Callose |
| D. | Inulin |
| Answer» E. | |
| 9976. |
Harden and Young's ester is formed during glycolysis from |
| A. | Fructose-6-phosphate |
| B. | Glucose-6-phosphate |
| C. | Glucose |
| D. | None of the above |
| Answer» B. Glucose-6-phosphate | |
| 9977. |
According to the well-known theory of transport of solutes across a cell membrane, what happens when sugar is passed through it [CBSE PMT 1992] |
| A. | \[N{{a}^{+}}\]flows in the direction of the sugar |
| B. | \[N{{a}^{+}}\]flows independent of sugar molecules |
| C. | \[N{{a}^{+}}\]flows against the sugar molecules |
| D. | \[N{{a}^{+}}\]ions do not flow at all |
| Answer» B. \[N{{a}^{+}}\]flows independent of sugar molecules | |
| 9978. |
Sites of first, second and third moulting of Ascaris larva are [AIIMS 2002] |
| A. | Soil, lung, intestine |
| B. | Soil, alveoli, lung |
| C. | Soil, intestine, lung |
| D. | Liver, stomach, intestine |
| Answer» D. Liver, stomach, intestine | |
| 9979. |
Which of the following fungal disease spreads by seed and flowers [CBSE PMT 2002] |
| A. | Corn stunt |
| B. | Covered smut |
| C. | Potato root |
| D. | Loose smut of wheat |
| Answer» E. | |
| 9980. |
Chromatid bodies occurs in Entamoeba during [APMEE 1996; Pb. PMT 1999; AIIMS 2002] |
| A. | Precyst stage |
| B. | Early cysts |
| C. | Tetranucleate cysts |
| D. | Trophozoites |
| Answer» C. Tetranucleate cysts | |
| 9981. |
In order to label the coat alone but not the nucleic acid, the bacteriophage should be grown on E. coli cells previously cultured on a medium containing |
| A. | \[{{P}^{32}}\] |
| B. | \[{{S}^{35}}\] |
| C. | \[{{H}^{3}}\] |
| D. | \[{{C}^{14}}\] |
| Answer» C. \[{{H}^{3}}\] | |
| 9982. |
Velocity of conduction of nerve impulse in frog is [CBSE PMT 1991, 93] |
| A. | Faster than sound |
| B. | 30 metre per second |
| C. | 300 metre per second |
| D. | None of these |
| Answer» E. | |
| 9983. |
One of the parents of a cross has a mutation in its mitochondria. In that cross, that parent is taken as a male. During segregation of progenies that mutation is found in [CBSE PMT 2004] |
| A. | All the progenies |
| B. | Fifty percent of the progenies |
| C. | One-third of the progenies |
| D. | None of the progenies |
| Answer» E. | |
| 9984. |
Who wrote the book "Genetics and the Origin of Species'' [MP PMT 1999] |
| A. | Devis |
| B. | Dobzhansky |
| C. | Julian Huxley |
| D. | Fisher |
| Answer» C. Julian Huxley | |
| 9985. |
What percentage of usable radiant energy entering a reaction site of photosynthesis is converted to potential energy [BHU 2002] |
| A. | 0.1 |
| B. | 0.2 |
| C. | 0.35 |
| D. | 0.42 |
| Answer» D. 0.42 | |
| 9986. |
Which of the following shows that metabolic energy is required in the absorption of ions [MP PMT 1992] |
| A. | More ions absorption in presence of oxygen |
| B. | Less absorption of ions in presence of oxygen |
| C. | More ions absorption in presence of ATP |
| D. | More ions absorption in presence of NAD |
| Answer» D. More ions absorption in presence of NAD | |
| 9987. |
In the modern system of nomenclature which one of the following enzyme occupies 6th position |
| A. | Ligase |
| B. | Isomerase |
| C. | Lyase |
| D. | Hydrolase |
| Answer» B. Isomerase | |
| 9988. |
During its journey through the body, the juvenile Ascaris passes through [CPMT 1992] |
| A. | Spleen |
| B. | Kidney |
| C. | Skeletal muscles |
| D. | Lung |
| Answer» E. | |
| 9989. |
"Monkey's puzzle'' is a common name for [BHU 1987] |
| A. | Araucaria embricata |
| B. | Cycas revoluta |
| C. | Pinus longifolia |
| D. | Gnetum genon |
| Answer» B. Cycas revoluta | |
| 9990. |
Powdery mildews of crops are caused by [AIIMS 2001; MHCET 2003] |
| A. | Bacteria |
| B. | Ascomycetes |
| C. | Phycomycetes |
| D. | Basidiomycets |
| Answer» C. Phycomycetes | |
| 9991. |
Which stage of Plasmodium is infective for Mosquito [RPMT 1996] |
| A. | Trophozoite |
| B. | Gametocyte |
| C. | Ookinete |
| D. | Sporozoite |
| Answer» C. Ookinete | |
| 9992. |
The major protein of the connective tissues is [DPMT 1993; AIIMS 2001] |
| A. | Keratin |
| B. | Collagen |
| C. | Melanin |
| D. | Myosin |
| Answer» C. Melanin | |
| 9993. |
Three chambered heart of frog is not as efficient as four-chambered human heart because [EAMCET 1999] |
| A. | Heart muscles are not strong |
| B. | It does not hold enough blood |
| C. | Ventricle does not pump blood properly |
| D. | Oxygenated and deoxygenated blood mix up |
| Answer» E. | |
| 9994. |
In case of incomplete dominance in \[{{F}_{2}}\] generation [BHU 1995] |
| A. | Genotypic ratio is 3 : 1 |
| B. | Phenotypic ratio is 3 : 1 |
| C. | Genotypic ratio = phenotypic ratio |
| D. | Nothing can be concluded |
| Answer» D. Nothing can be concluded | |
| 9995. |
"In different races, there may be difference in culture and ways of living but capacity in all is the same''. It was the opinion of |
| A. | Darwin |
| B. | Wallace |
| C. | Lamarck |
| D. | Shapiro |
| Answer» C. Lamarck | |
| 9996. |
Cyanobacteria are [BVP 2004] |
| A. | Mosses which attack bacteria |
| B. | Bacteria which attack Cyanophyceae |
| C. | Autotrophic organism with phycocyanin |
| D. | None of these |
| Answer» D. None of these | |
| 9997. |
The cells of bacterium Stanphylococcus remain arranged in the form of [BVP 2002] |
| A. | Plate |
| B. | Cube |
| C. | Irregular |
| D. | Chain |
| Answer» D. Chain | |
| 9998. |
Bacteriophage transfers DNA from donor to recipient cell, this is called [BVP 2000] |
| A. | Translation |
| B. | Transduction |
| C. | Conjugation |
| D. | Transcription |
| Answer» C. Conjugation | |
| 9999. |
Due to viral infection in green tissues of plants, there is alteration in the normal development of chlorophyll. This is called |
| A. | Chlorosis |
| B. | Necrosis |
| C. | Yellowing |
| D. | Mosaic |
| Answer» B. Necrosis | |
| 10000. |
Which of the following is the most suitable fertilizer for paddy fields [MH CET 2002] |
| A. | Rhizobium |
| B. | Mycorrhizae |
| C. | Axotobacter and Clostridium |
| D. | Symbiotic or non-symbiotic cyanobacteria |
| Answer» E. | |