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.
| 10101. |
The prerequisites for biotechnological production of antibiotics is [MP PMT 1998] |
| A. | To search an antibiotic producing microorganism |
| B. | To isolate the antibiotic gene |
| C. | To join antibiotic gene with E. coli plasmid |
| D. | All of the above |
| Answer» E. | |
| 10102. |
Positron emission tomography (PET) is one of the best methods for functional imaging because [AIIMS 2003] |
| A. | Isotopes with long half -lives are used |
| B. | Isotopes with short half -lives are used |
| C. | Positrons are directly involved used in imaging |
| D. | Isotopes of basic body elements are used for imaging |
| Answer» E. | |
| 10103. |
Booster dose of triple antigen vaccination is given to the child at the age of |
| A. | One year |
| B. | Two year |
| C. | Three year |
| D. | Four year |
| Answer» B. Two year | |
| 10104. |
A calcitrant seed will be killed in |
| A. | Low temperature |
| B. | Dry air |
| C. | Further dehydration |
| D. | All the above |
| Answer» D. All the above | |
| 10105. |
A major pest eradicated through release of sterile males is |
| A. | Screw worm |
| B. | Aphids |
| C. | Ladybug |
| D. | Praying Mantis |
| Answer» B. Aphids | |
| 10106. |
'Rotenone' is [CBSE PMT 1995; BHU 1999; Pb. PMT 2000] |
| A. | A bioherbicide |
| B. | An insect hormone |
| C. | A natural herbicide |
| D. | A natural insecticide |
| Answer» E. | |
| 10107. |
Long neck of camel is due to [JIMPER 1997; BHU 1995] |
| A. | Number of neck vertebrae |
| B. | Length of each neck vertebrae |
| C. | Development of extra bony plates between successive neck vertebrae |
| D. | Development of muscular pads between successive neck vertebrae |
| Answer» C. Development of extra bony plates between successive neck vertebrae | |
| 10108. |
Medicine for curing impotancy is prepared by |
| A. | Asparagus racemosa |
| B. | Acacia arabica |
| C. | Both a and b |
| D. | None of the above |
| Answer» B. Acacia arabica | |
| 10109. |
A threatened species is [Orissa 2003] |
| A. | Only endangered species |
| B. | Only vulnerable species |
| C. | Endangered and rare species |
| D. | Endangered, vulnerable and rare species |
| Answer» E. | |
| 10110. |
Dense evergreen vegetation of broad sclerophyllous leaves and shrubs with fire resistant resisnous plants is known as [AIIMS 1997] |
| A. | Chapparral vegetation |
| B. | Savannah vegetation |
| C. | Steppe grassland |
| D. | Tundra vegetation |
| Answer» B. Savannah vegetation | |
| 10111. |
The presence of ozone \[\left( {{O}_{3}} \right)\] in the atmosphere of earth [CPMT 1984] |
| A. | Hinders higher rate of photosynthesis |
| B. | Helps in checking the penetration of ultraviolet rays to earth |
| C. | Has been responsible for increasing the average global temperature in recent years |
| D. | Is advantageous since it supplies \[{{O}_{2}}\] for people travelling in jets |
| Answer» C. Has been responsible for increasing the average global temperature in recent years | |
| 10112. |
Ecosystem involves |
| A. | Gain of energy and loss of minerals |
| B. | Loss of energy and gain of minerals |
| C. | Gain of energy and gain of minerals |
| D. | Loss of energy and loss of minerals |
| Answer» D. Loss of energy and loss of minerals | |
| 10113. |
Biotic succession is caused by [AIEEE 2003] |
| A. | Competition amongst species |
| B. | Occurrence of diseases |
| C. | Changes is grazing habits |
| D. | Adaptive ability to environmental changes |
| Answer» E. | |
| 10114. |
Maximum growth in human foetus occurs at the age of |
| A. | Four months |
| B. | Two months |
| C. | Six months |
| D. | Eight months |
| Answer» B. Two months | |
| 10115. |
The abundance of a species population within its habitat is called [AIIMS 2001, 02] |
| A. | Niche density |
| B. | Regional density |
| C. | Relative density |
| D. | Absolute density |
| Answer» B. Regional density | |
| 10116. |
In rabbit, ex-abdominal reproductive organs are [RPMT 2001] |
| A. | Testes, Penis, Epididymis |
| B. | Testes, Vas deferens, Testes sac |
| C. | Testes, Vas deferens, Ejaculatin duct |
| D. | Testes sac, Seminal Vesicle, Epididymis |
| Answer» B. Testes, Vas deferens, Testes sac | |
| 10117. |
The diagram below is a longitudinal section of an ovule of an angiosperm With which of the following structures do the contents of one pollen tube fuse with |
| A. | 1 and 3 |
| B. | 1 and 4 |
| C. | 2 and 3 |
| D. | 3 and 4 |
| Answer» E. | |
| 10118. |
Which of these sets of cells divide slowly [JIPMER 1993] |
| A. | Micromeres |
| B. | Megameres |
| C. | Blastomeres |
| D. | Mesomeres |
| Answer» C. Blastomeres | |
| 10119. |
Archenteron is formed during [CPMT 1984; MP PMT 2002] |
| A. | Early blastula |
| B. | Morula stage |
| C. | Early gastrula |
| D. | Late gastrula |
| Answer» D. Late gastrula | |
| 10120. |
Ontogenetically liver and pancreas are or During embryonic development pancreas and liver develop from which germinal layer [CPMT 1973, 83, 84; MP PMT 1996] |
| A. | Ectoderm |
| B. | Mesoderm |
| C. | Endoderm |
| D. | Blastopore |
| Answer» D. Blastopore | |
| 10121. |
The best definition of the process of gastrulation is that, it is a process where the [AIIMS 1983; DPMT 1985] |
| A. | Single layered blastula becomes two layered |
| B. | Archenteron is formed |
| C. | Cells move to occupy their definite position |
| D. | Zygote gets converted to a larva |
| Answer» D. Zygote gets converted to a larva | |
| 10122. |
From the egg in gastrula stage if you remove all cells which form endoderm, the new organism will lack of [DPMT 1982] |
| A. | Eyes |
| B. | Heart |
| C. | Eyes and brain |
| D. | Some of the visceral organs |
| Answer» E. | |
| 10123. |
The attachment of the mammalian blastocyst to the uterine wall is [CBSE PMT 1993] |
| A. | Incest |
| B. | Implantation |
| C. | Intromission |
| D. | Incorporation |
| Answer» C. Intromission | |
| 10124. |
How many divisions occur when a isolated cell is divided into 128 cells [AFMC 2002] |
| A. | 64 |
| B. | 127 |
| C. | 7 |
| D. | 32 |
| Answer» D. 32 | |
| 10125. |
Meroblastic cleavage refers to one of the following types of division of eggs [KCET 1998] |
| A. | Total |
| B. | Partial |
| C. | Spiral |
| D. | Horizontal |
| Answer» C. Spiral | |
| 10126. |
The energy obtained from 42 million animal power is equivalent to |
| A. | 350 MW |
| B. | 3500 MW |
| C. | 30500 MW |
| D. | 35000 MW |
| Answer» D. 35000 MW | |
| 10127. |
Most of the micro-organisms which produce antibiotics live in the soil because |
| A. | Darkness favours synthesis of antibiotics |
| B. | By the phenomenon of antibiosis, their growth, nutrition and survival value are enhanced in competitive world of microflora of the soil |
| C. | They cannot get nutrition outside the soil |
| D. | No one easily misuse their antibiotics |
| Answer» C. They cannot get nutrition outside the soil | |
| 10128. |
'Haemophilia' disease is caused due to lack of [BHU 1988] |
| A. | ADH |
| B. | STH |
| C. | AHF |
| D. | ACTH |
| Answer» D. ACTH | |
| 10129. |
Which one is green manure/bio fertilizer [Wardha 2002] |
| A. | Sesbania |
| B. | Maize |
| C. | Rice |
| D. | Oat |
| Answer» B. Maize | |
| 10130. |
Potential food plant is |
| A. | Winged Bean (Psophocarpus tetragonolobus) |
| B. | Jojoba (Simmondsia chinensis) |
| C. | Guayule (Parthenium orgentatum) |
| D. | Leucaena |
| Answer» C. Guayule (Parthenium orgentatum) | |
| 10131. |
The most famous pesticide of the world is [BVP 2003] |
| A. | Methyl isocyanate |
| B. | DDT |
| C. | Gammexane |
| D. | Malathion |
| Answer» C. Gammexane | |
| 10132. |
Hinny is a hybrid of male [KCET 1994] |
| A. | Horse and female donkey |
| B. | Donkey and female horse |
| C. | Goat and female lamb |
| D. | Sheep and female goat |
| Answer» B. Donkey and female horse | |
| 10133. |
Soil fertility can be maintained without addition of nutrients due to [BHU 1985] |
| A. | Floods |
| B. | Crop residue |
| C. | Activity of microorganisms |
| D. | Favourable temperature and water |
| Answer» D. Favourable temperature and water | |
| 10134. |
Vavilov's centres of origin of crop plants are located in [CPMT 1985] |
| A. | Mountains of tropical areas |
| B. | Mountains of temperate areas |
| C. | Mountains of both tropical and temperate areas |
| D. | Plains of tropical areas |
| Answer» B. Mountains of temperate areas | |
| 10135. |
Emphysema disease is caused by |
| A. | \[S{{O}_{2}}\] |
| B. | \[C{{O}_{2}}\] |
| C. | Photochemical smog |
| D. | Mercury |
| Answer» D. Mercury | |
| 10136. |
The closely related morphologically similar sympatric populations, but reproductively isolated, are designated as [CPMT 2000] |
| A. | Clines |
| B. | Demes |
| C. | Clones |
| D. | Sibling species |
| Answer» E. | |
| 10137. |
If less light falls on the pond?s surface |
| A. | Size of fishes become larger |
| B. | The size of fish population become smaller |
| C. | The size of fish population is no way connected with amount of light falling on a pond |
| D. | Mutation will take place in fishes |
| Answer» C. The size of fish population is no way connected with amount of light falling on a pond | |
| 10138. |
Hydrophyte with both hydrophytic and xerophytic traits is [CPMT 2001] |
| A. | Agave |
| B. | Nerium |
| C. | Vallisneria |
| D. | None of the above |
| Answer» E. | |
| 10139. |
Degrowth takes place when |
| A. | Anabolism is higher than catabolism |
| B. | Catabolism is higher than anabolism |
| C. | Protoplasmic synthesis is more than apoplasmatic synthesis |
| D. | Apoplasmatic synthesis is more than protoplasmic synthesis |
| Answer» C. Protoplasmic synthesis is more than apoplasmatic synthesis | |
| 10140. |
Cumulus covers [AIIMS 1999] |
| A. | Ovary |
| B. | Ovum |
| C. | Embryo |
| D. | All of these |
| Answer» C. Embryo | |
| 10141. |
Match the following 'A' 'B' (1) Auxin (I) Ripening and maturity of fruits (2) Gibberellin (II) Differentiation of xylem elements (3) Cytokinin (III) Prevention of genetic and physiological dwarfism (4) Ethylene (IV) Found from tumour tissue of tobacco |
| A. | (1) - IV (2) - III (3) - II (4) - I |
| B. | (1) - IV (2) - II (3) - III (4) - I |
| C. | (1) - II (2) - III (3) - IV (4) - I |
| D. | (1) - III (2) - IV (3) - II (4) - I |
| Answer» D. (1) - III (2) - IV (3) - II (4) - I | |
| 10142. |
Cleavage is a unique form of mitotic cell division in which [CPMT 1999; JIPMER 2001] |
| A. | The nucleus does not participate |
| B. | There is no growth of cells |
| C. | No spindle develops to guide the cells |
| D. | The plasma membranes of daughter cells do not separate |
| Answer» C. No spindle develops to guide the cells | |
| 10143. |
How many eggs will be formed from 100 primary oocytes [MP PMT 1997, 2000] |
| A. | 300 |
| B. | 400 |
| C. | 200 |
| D. | 100 |
| Answer» E. | |
| 10144. |
The blastula of prototherians is called |
| A. | Blastocyst |
| B. | Stereoblastula |
| C. | Coeloblastula |
| D. | Discoblastula |
| Answer» E. | |
| 10145. |
Which of the following cannot pass through the placenta into the foetus |
| A. | Bacteria of syphilis |
| B. | Thalidomide |
| C. | Virus of German measles |
| D. | None of the above |
| Answer» E. | |
| 10146. |
Which of the following structure is found in blastula [CPMT 1995] |
| A. | Segmentation cavity |
| B. | Notochord |
| C. | Gill |
| D. | Tail |
| Answer» B. Notochord | |
| 10147. |
Spiral cleavage is found in |
| A. | Synapta |
| B. | Amphibia |
| C. | Nematoda, annelida and rotifera etc. |
| D. | None of the above |
| Answer» D. None of the above | |
| 10148. |
Arachis hypogea exhibits [AIEEE 2003] |
| A. | Epicarpy |
| B. | Apocarpy |
| C. | Geocarpy |
| D. | Syncarpy |
| Answer» D. Syncarpy | |
| 10149. |
Of the following animals which produces the smallest egg |
| A. | Humming bird |
| B. | Salmon |
| C. | Blue whale |
| D. | American toad |
| Answer» D. American toad | |
| 10150. |
Which of the following depends on man for its cultivation and will vanish without men's help [CPMT 1999] |
| A. | Rice |
| B. | Maize |
| C. | Wheat |
| D. | Potato |
| Answer» C. Wheat | |