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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.
| 12051. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Heroin is also called smack. Reason : Heroin is an opium alkaloid. |
| 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. | |
| 12052. |
Which is Indian dwarf wheat |
| A. | T. aestivum |
| B. | T. turgidum |
| C. | T. sphaerococcum |
| D. | T. dicoccum |
| Answer» D. T. dicoccum | |
| 12053. |
Which is called "Clock of ageing" |
| A. | Thymus |
| B. | Thyroid |
| C. | Adrenal |
| D. | Pituitary |
| Answer» B. Thyroid | |
| 12054. |
Smallest plant which contain green pigment such as higher green plant is [CPMT 2002] |
| A. | Schizomycetes |
| B. | Rhodophyceae |
| C. | Chlorophyceae |
| D. | Phaeophyceae |
| Answer» D. Phaeophyceae | |
| 12055. |
T.B. is caused by |
| A. | Shigella bacteria |
| B. | Mycobacterium |
| C. | Salmonella |
| D. | Virus |
| Answer» C. Salmonella | |
| 12056. |
Read the assertion and reason carefully: Assertion : Megaspore mother cell undergoes meiotic division. Reason : All four megaspores form female gametophyte. |
| 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 | |
| 12057. |
Which part of the world has a high diversity of organisms [CBSE PMT 1999] |
| A. | Grasslands |
| B. | Savannahs |
| C. | Deciduous forests |
| D. | Tropical rain forests |
| Answer» E. | |
| 12058. |
The first reaction in photorespiraton is [RPMT 1999; CBSE PMT 2000; CPMT 2001] |
| A. | Carboxylation |
| B. | Decarboxylation |
| C. | Oxygenation |
| D. | Phosphorylation |
| Answer» D. Phosphorylation | |
| 12059. |
Stratifications is more common in [Haryana PMT 1994; DPMT 2001, 04] |
| A. | Tropical rain forest |
| B. | Deciduous forest |
| C. | Temperate forest |
| D. | Tropical savannah |
| Answer» B. Deciduous forest | |
| 12060. |
There are two types of elephants, African and Indian. African elephants have |
| A. | Larger ears |
| B. | Convex sloping forehead |
| C. | Tusks in both sexes |
| D. | All the above |
| Answer» E. | |
| 12061. |
Read the assertion and reason carefully: Assertion : Seeds and fruits showing hydrochory generally grow near water bodies. Reason : Water is ideal for dispersal of all types of seeds and fruits. |
| 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 | |
| 12062. |
Rana Tigerinum is the zoological name of [Orissa JEE 2004] |
| A. | Frog |
| B. | Garden lizard |
| C. | Tiger |
| D. | Krait |
| Answer» B. Garden lizard | |
| 12063. |
During mitosis chromosomes go to their poles in a stage called[CPMT 1994; MP PMT 2001; DPMT 2003; BHU 2004] |
| A. | Prophase |
| B. | Metaphase |
| C. | Anaphase |
| D. | Telophase |
| Answer» D. Telophase | |
| 12064. |
Assertion : Pinus is monoecious. Reason : Each sporophyll bears only one microsporangia. |
| 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 | |
| 12065. |
Among the following which one is the richest source of protein [BHU 1984; MP PMT 1991, 2000; CPMT 1995] |
| A. | Soybean (Glycine max) |
| B. | Wheat |
| C. | Rice |
| D. | Gram |
| Answer» B. Wheat | |
| 12066. |
What is incorrect for bryophytes [RPMT 1997] |
| A. | Vascular tissue lacking |
| B. | Independent sporophyte absent |
| C. | Gametophyte reduced and dependent |
| D. | Asexual reproduction by zoospores absent |
| Answer» D. Asexual reproduction by zoospores absent | |
| 12067. |
Robert Hooke [CPMT 1986] |
| A. | Lived in the 19th century |
| B. | Observed cork cells |
| C. | Invented lens |
| D. | Constructed a microscope |
| Answer» C. Invented lens | |
| 12068. |
Dilation of blood vessels, increase in fat synthesis, low blood sugar and inflammation of stomach are due to the consumption of [CBSE PMT 1993] |
| A. | Tobacco |
| B. | Drug addiction |
| C. | Alcohol |
| D. | Tobacco and drug addiction |
| Answer» E. | |
| 12069. |
One pound of pea nut yields |
| A. | 636 kcal |
| B. | 27 kcal |
| C. | 200 kcal |
| D. | 2700 kcal |
| Answer» E. | |
| 12070. |
Assertion : Bacteria do not always move with the help of flagella. Reason : Flagellated bacteria employs rotary motion of flagellum when it moves. |
| 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 | |
| 12071. |
Assertion : The peristome is a fringe of teeth-like projections found at the mouth of the capsule. Reason : It may be of two types nematodontous and orthodontus. |
| 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 | |
| 12072. |
Assertion : The embryo of bryophyte is independent. Reason : The zygote of thallophyte is dependent. |
| 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 | |
| 12073. |
Fermentation is represented by the equation [MP PMT 1996] |
| A. | \[{{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{O}_{2}}\to 6C{{O}_{2}}+673\,\,k\,\,cal\] |
| B. | \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\to 2{{C}_{2}}{{H}_{5}}OH+2C{{O}_{2}}+18\,\,k\,\,cal\] |
| C. | \[6C{{O}_{2}}+12{{H}_{2}}O\underset{Chlorophyll}{\mathop{\xrightarrow{Light}}}\,{{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{H}_{2}}O+6{{O}_{2}}\] |
| D. | \[6C{{O}_{2}}+6{{H}_{2}}O\to {{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{O}_{2}}\] |
| Answer» C. \[6C{{O}_{2}}+12{{H}_{2}}O\underset{Chlorophyll}{\mathop{\xrightarrow{Light}}}\,{{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{H}_{2}}O+6{{O}_{2}}\] | |
| 12074. |
Alcohol is harmful for |
| A. | Hair |
| B. | Teeth |
| C. | Bones |
| D. | Liver |
| Answer» E. | |
| 12075. |
Read the assertion and reason carefully: Assertion : The lenticel is meant for gaseous exchange. Reason : Lenticel checks excessive evaporation of water. |
| 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 | |
| 12076. |
Assertion : The female cones take much time to mature. Reason : The seeds are shed when the cone is 22 months old. |
| 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 | |
| 12077. |
The plant which bears clinging roots are [CBSE PMT 1999] |
| A. | Trapa |
| B. | Orchid |
| C. | Screw pine |
| D. | Podostemon |
| Answer» C. Screw pine | |
| 12078. |
Venter is the part of [CPMT 1989; JIPMER 1985] |
| A. | Sporogonium |
| B. | Sporangium |
| C. | Antheridium |
| D. | Archegonium |
| Answer» E. | |
| 12079. |
Diaphragm is found in [MH CET 2001] |
| A. | Crocodile |
| B. | Kangaroo |
| C. | Ostrich |
| D. | Snake |
| Answer» C. Ostrich | |
| 12080. |
Triazines are derived from |
| A. | Ammonia |
| B. | Urea |
| C. | Uric acid |
| D. | None |
| Answer» C. Uric acid | |
| 12081. |
Number of botanical gardens and arboreta world wide is |
| A. | 1500 |
| B. | 1200 |
| C. | 1050 |
| D. | 850 |
| Answer» B. 1200 | |
| 12082. |
Assertion : Clones are produced by sexual reproduction and same sexual process. Reason : These are prepared by group of cells descended from many cells or by inbreeding of a heterozygous line. [AIIMS 2002] |
| 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 | |
| 12083. |
Indole propionic acid is a |
| A. | Toxic substance |
| B. | Acid obtained from fruits |
| C. | A substance obtained from hormone |
| D. | A derivative of carbohydrate |
| Answer» D. A derivative of carbohydrate | |
| 12084. |
The most biodiversity rich zone in India [MP PMT 2005] |
| A. | Gangetic planes |
| B. | Trans himalayas |
| C. | Western Ghats |
| D. | Central India |
| Answer» D. Central India | |
| 12085. |
Whereas the number of chromosomes is reduced to half in first reduction division of meiosis, then what is the need for second mitotic division [MP PMT 2001] |
| A. | For the segregation of replicated chromosomes |
| B. | For equal distribution of haploid chromosomes |
| C. | For the formation of four gametes |
| D. | For equal distribution of genes on chromosomes |
| Answer» B. For equal distribution of haploid chromosomes | |
| 12086. |
To increase milk yield, cow is given [AIIMS 1997] |
| A. | Sorbitol |
| B. | Stilbesterol |
| C. | Prolactin |
| D. | Ganadotrophin |
| Answer» C. Prolactin | |
| 12087. |
Banding pattern of present man and chimpanzee is nearly the same. It indicates that both have |
| A. | Similar gene pool |
| B. | Similar number of chromosomes |
| C. | Evolved from a common stock |
| D. | Developed brain and memory |
| Answer» D. Developed brain and memory | |
| 12088. |
The enzyme lipase converts [CPMT 1983] |
| A. | Proteins into amino acids |
| B. | Proteins into peptones |
| C. | Peptones into amino acids |
| D. | Fats into fatty acids and glycerol |
| Answer» E. | |
| 12089. |
In which of the following is 'swarming' found [MP PMT 1998] |
| A. | In mosquitoes |
| B. | In house flies |
| C. | In locust |
| D. | In Pyrilla |
| Answer» D. In Pyrilla | |
| 12090. |
Both in callus and suspension cultures commonly used auxin is [Kerala CET 2005] |
| A. | NAA |
| B. | IBA |
| C. | 2-4 D |
| D. | 2,4,5-Trichlorophenoxy acetic acid |
| E. | Absicisic acid |
| Answer» D. 2,4,5-Trichlorophenoxy acetic acid | |
| 12091. |
Centre of origin of cultivated tetraploid wheat (Triticum durum and T. dicoccum) is |
| A. | Mexico |
| B. | India |
| C. | Mediterranean region |
| D. | Middle-east |
| Answer» E. | |
| 12092. |
Which one of the following systems commonly used in alcoholic fermentation |
| A. | Bacterial system |
| B. | Algal system |
| C. | Fungal system |
| D. | Viral system |
| Answer» D. Viral system | |
| 12093. |
In which of the following cycle, an atmospheric cycle is absent |
| A. | Carbon cycle |
| B. | Phosphorus cycle |
| C. | Nitrogen cycle |
| D. | Sulphur cycle |
| Answer» C. Nitrogen cycle | |
| 12094. |
Enzymes are destroyed |
| A. | At very low temperature |
| B. | During chemical reaction |
| C. | At very high temperature |
| D. | Below freezing point |
| Answer» D. Below freezing point | |
| 12095. |
A plant cell usually differs from an animal cell in the absence of [CPMT 1972, 84; RPMT 2001; J&K CET 2002; MP PMT 2002; DPMT 2003] |
| A. | Ribosomes |
| B. | Centriole |
| C. | Mitochondria |
| D. | E.R. |
| Answer» C. Mitochondria | |
| 12096. |
Study of Biogeochemical cycles is called Biogeochemistry. Its father is Vernadsky (=Winodgsky). It involves [CBSE PMT 1999] |
| A. | Cycling of energy |
| B. | Cycling of gases |
| C. | Cycling of nutrients |
| D. | Cycling of water |
| Answer» D. Cycling of water | |
| 12097. |
On the basis of utility, Nagpuri buffaloes are categorised as [KCET 1997] |
| A. | Milkers |
| B. | Draught cattle |
| C. | Dual purpose |
| D. | Grazers |
| Answer» B. Draught cattle | |
| 12098. |
Read the assertion and reason carefully: Assertion : Angiospermic flowers perform the function of sexual reproduction. Reason : The male and female reproductive structures are found in the flowers. [AIIMS 1994] |
| 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 | |
| 12099. |
When a plant cell is treated by cellulose and pectinate enzymes, which of the following is formed [AMU 2005] |
| A. | Chloroplast |
| B. | Leucoplast |
| C. | Protoplast |
| D. | One of these |
| Answer» D. One of these | |
| 12100. |
Selective breeding, progeny testing and improvement are taking place in |
| A. | Cattle |
| B. | Buffalo |
| C. | Sheep |
| D. | Annual food crops |
| Answer» B. Buffalo | |