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.
| 10051. |
Before european invaders, which vegetable was absent in India [CBSE PMT 2001] |
| A. | Potato and Tomato |
| B. | Bitter Gourd |
| C. | Simla Mirch and Brinjal |
| D. | Maize and Chichinda |
| Answer» B. Bitter Gourd | |
| 10052. |
Sporeine was developed in [CBSE PMT 1988] |
| A. | Germany |
| B. | France |
| C. | U.S.A. |
| D. | Russia |
| Answer» B. France | |
| 10053. |
?Sporeine' is a |
| A. | Herbicide |
| B. | Pesticide |
| C. | Mycoherbicide |
| D. | Insecticide |
| Answer» E. | |
| 10054. |
It is now possible to breed plants and animals with desired characters through [KCET 1994] |
| A. | Ikebana technique |
| B. | Tissue culture |
| C. | Genetic engineering |
| D. | Chromosome engineering |
| Answer» D. Chromosome engineering | |
| 10055. |
Genetic engineering is possible, because [CBSE PMT 1998; AFMC 1999] |
| A. | The phenomenon of transduction in bacteria is well understood |
| B. | We can see DNA by electron microscope |
| C. | We can cut DNA at specific sites by endonucleases like DNAase-I |
| D. | Restriction endonucleases purified from bacteria can be used in vitro |
| Answer» E. | |
| 10056. |
Which of the following is given as a decoction in jaundice, paralysis, urinary troubles, menstrual disorders, inflammatory condition of chest etc. |
| A. | Aconite |
| B. | Celery |
| C. | Indian madar |
| D. | Harjory |
| Answer» D. Harjory | |
| 10057. |
Ecofriendly method is [CBSE PMT 1999] |
| A. | Plantation of\[{{C}_{3}}\]plants |
| B. | Plantation of sugarcane |
| C. | Energy plantation |
| D. | None of the above |
| Answer» D. None of the above | |
| 10058. |
Acid rain is caused by or recent reports of acid rain in some industrial cities are due to the effect of atmospheric pollution by [MP PMT 1987, 90; BHU 1989; CPMT 1989; CBSE PMT 1988, 89; KCET 1994; EAMCET 1995; Pb. PMT 2004] |
| A. | Excessive release of\[C{{O}_{2}}\]by burning of fuels like wood and charcoal, cutting of forests and increased animal population |
| B. | Excessive release of \[N{{O}_{2}}\]and \[S{{O}_{2}}\] in atmosphere by burning of fossil fuel |
| C. | Excessive release of \[N{{H}_{3}}\] by industrial plants and coal gas |
| D. | Excessive release of \[CO\] in atmosphere by incomplete combustion of coke, charcoal and other carbonaceous fuel in paucity of oxygen |
| Answer» C. Excessive release of \[N{{H}_{3}}\] by industrial plants and coal gas | |
| 10059. |
More than half of the earth?s flora and fauna is found in [HP PMT 2001] |
| A. | Tropical rain forests |
| B. | Montane temperate forests |
| C. | Deciduous forests |
| D. | Alpine forests |
| Answer» B. Montane temperate forests | |
| 10060. |
Abyssal zone of oceans is characterized by [BHU 1992] |
| A. | Presence of sunlight and producers |
| B. | Absence of sunlight and all living organisms |
| C. | Absence of sunlight but presence of producers |
| D. | Absence of sunlight and presence of consumers and decomposers |
| Answer» E. | |
| 10061. |
Exponential growth of cell population is defined by the expression |
| A. | \[P=4n\] |
| B. | \[n=2P\] |
| C. | \[P=2n\] |
| D. | \[n=4P\] |
| Answer» D. \[n=4P\] | |
| 10062. |
Vulva is enclosed by |
| A. | Vaginal orifice |
| B. | Clitoris |
| C. | Labia majora |
| D. | Labia majora and minora both |
| Answer» E. | |
| 10063. |
Apical dominance means [CPMT 1989] |
| A. | Suppression of growth of apical bud by axillary buds |
| B. | Suppression of growth of axillary buds by presence of apical bud |
| C. | Stimulation of growth of apical bud by removal of axillary buds |
| D. | Inhibition of growth of axillary buds by removal of apical bud |
| Answer» C. Stimulation of growth of apical bud by removal of axillary buds | |
| 10064. |
Micropyle allows [CPMT 1978] |
| A. | Pollen tube to penetrate in the ovule at the time of fertilization |
| B. | Activity of germination of pollen grains |
| C. | A pore in pollen grain |
| D. | The growing up of pollen grain |
| Answer» B. Activity of germination of pollen grains | |
| 10065. |
The placental barrier between the maternal and foetal blood is minimum in [AIIMS 1992] |
| A. | Goat |
| B. | Pig |
| C. | Cow |
| D. | Human |
| Answer» E. | |
| 10066. |
Extra embryonic membrane amnion is not found in amphibians because [RPMT 2001] |
| A. | They lay eggs in water |
| B. | Egg hatches in tadpole |
| C. | Amphibious habit |
| D. | They have smooth skin |
| Answer» B. Egg hatches in tadpole | |
| 10067. |
Chorion is found [MP PMT 1994] |
| A. | Inside the amnion |
| B. | Outside the amnion |
| C. | Inside the allantois |
| D. | Inside the yolk sac |
| Answer» C. Inside the allantois | |
| 10068. |
The amnion and chorion consist of which type of composition |
| A. | Somatopleure |
| B. | Splenchnopleure |
| C. | Somatic mesoderm only |
| D. | Somatic endoderm only |
| Answer» B. Splenchnopleure | |
| 10069. |
During embryonic development, the establishment of polarity along anterior/ posterior, dorsal/ventral or medial/lateral axis is called [CBSE PMT 2003] |
| A. | Pattern formation |
| B. | Organizer phenomena |
| C. | Axis formation |
| D. | Anamorphosis |
| Answer» C. Axis formation | |
| 10070. |
In both chordates and non-chordates intestine develops from [RPMT 2000] |
| A. | Pharyngeal pouch |
| B. | Ectoderm |
| C. | Endoderm |
| D. | Mesoderm |
| Answer» D. Mesoderm | |
| 10071. |
In embryonic stage RBC develops in [MP PMT 1996] |
| A. | Liver and kidney |
| B. | Liver and spleen |
| C. | Spleen and kidney |
| D. | Liver and pancreas |
| Answer» C. Spleen and kidney | |
| 10072. |
A Bioenergy source obtained by fermentation to supplement fossil fuel petrol is [CET Chd. 1998] |
| A. | Kerosene |
| B. | Ethanol |
| C. | Diesel |
| D. | Methane |
| Answer» C. Diesel | |
| 10073. |
Hybridomas are the result of fusion of |
| A. | Male reproductive cells |
| B. | Female reproductive cells |
| C. | Normal antibody producing cells with myeloma |
| D. | Abnormal antibody producing cells with myeloma |
| Answer» D. Abnormal antibody producing cells with myeloma | |
| 10074. |
Electrocardiograph was developed by [Manipal 2003] |
| A. | Hans Berger |
| B. | Willem Kolff |
| C. | Willem Einthoven |
| D. | Wilhelm Roentgen |
| Answer» D. Wilhelm Roentgen | |
| 10075. |
A condition of failure of function of kidney to form urine is [Delhi PMT 1984] |
| A. | Creatinine |
| B. | Hematuria |
| C. | Anuria |
| D. | Alkaptoneuria |
| Answer» D. Alkaptoneuria | |
| 10076. |
One good example of an ?antiseptic' is [CPMT 1983] |
| A. | Bordeaux mixture |
| B. | DDT |
| C. | Carbolic acid in dilute solution |
| D. | Hydrocyanic acid gas |
| Answer» D. Hydrocyanic acid gas | |
| 10077. |
A New World spice that has become an essential part of Indian cuisine is [CBSE PMT 1995] |
| A. | Red pepper |
| B. | Black Pepper |
| C. | Cardamom |
| D. | Ginger |
| Answer» B. Black Pepper | |
| 10078. |
Domesticated livestock of high mountains is |
| A. | Yak |
| B. | Goat |
| C. | Sheep |
| D. | Horse |
| Answer» B. Goat | |
| 10079. |
Natural insecticide obtained from neem is [AFMC 2004] |
| A. | Nicotine |
| B. | Azadirectane |
| C. | Ecdysone |
| D. | All |
| Answer» C. Ecdysone | |
| 10080. |
Polymyxin B can be extracted from |
| A. | Anabaena cylindrica |
| B. | Chlorella |
| C. | Laminaria |
| D. | None of the above |
| Answer» B. Chlorella | |
| 10081. |
Parasexual hybridization means [MP PMT 1995] |
| A. | Fusion of male gamete with female gamete. |
| B. | Fusion of male gamete with synergid nucleus |
| C. | Fusion of somatic protoplasts |
| D. | Fusion of male gamete with protoplasts |
| Answer» D. Fusion of male gamete with protoplasts | |
| 10082. |
The famous 'Chipko Movement' was started by |
| A. | Bahuguna |
| B. | Rajeev Gandhi |
| C. | Indira Gandhi |
| D. | Salim Ali |
| Answer» B. Rajeev Gandhi | |
| 10083. |
Greatest problem in water conservation is to reduce the amount of [BHU 1991] |
| A. | Ground water |
| B. | Precipitation |
| C. | Run-off water |
| D. | Evaporation |
| Answer» E. | |
| 10084. |
A treeless biome is [AFMC 1999; MP PMT 2000] |
| A. | Tundra |
| B. | Grassland |
| C. | Desert |
| D. | All the above |
| Answer» E. | |
| 10085. |
The hypersaline waters are found in [DPMT 1986] |
| A. | Lakes located in the alpine regions |
| B. | Lakes located in the arid and semiarid regions |
| C. | Lakes located in the tropical regions |
| D. | Estuaries |
| Answer» C. Lakes located in the tropical regions | |
| 10086. |
Submerged hydrophytes have commonly dissected leaves for [Haryana PMT 2003] |
| A. | Decreasing surface area |
| B. | Increasing surface area |
| C. | Reducing effect of water currents |
| D. | Increasing number of stomata |
| Answer» D. Increasing number of stomata | |
| 10087. |
In human beings, which part shows, the minimum increase in weight from birth to adulthood |
| A. | Muscles |
| B. | Skeleton |
| C. | Fat |
| D. | Brain |
| Answer» E. | |
| 10088. |
Which of the following statements is correct for species [Wardha 2005] |
| A. | The members of a species occupy the same habitat |
| B. | They are morphologically similar |
| C. | They can interbreed among themselves |
| D. | They cannot interbreed with members of the other species |
| Answer» E. | |
| 10089. |
Clitoris in mammals is [DPMT 1985; CPMT 1980, 84, 93; BHU 1985; MP PMT 1993; RPMT 2001] |
| A. | Homologous to penis |
| B. | Analogous to penis |
| C. | Functional penis in female |
| D. | Non-functional penis in male |
| Answer» B. Analogous to penis | |
| 10090. |
Moving on a grass lawn facilitates better maintenance primarily owing to [CBSE PMT 1989; JIPMER 1994] |
| A. | Removal of apical dominance and promotion of lateral meristem |
| B. | Removal of apical dominance |
| C. | Wounding which stimulate rapid regeneration |
| D. | None of the above |
| Answer» C. Wounding which stimulate rapid regeneration | |
| 10091. |
At what stage of endosperm development, you will observe nuclear or cellular type of endosperm |
| A. | When divisions starts in embryo |
| B. | When embryo is heart-shaped |
| C. | Mature stage of endosperm |
| D. | Just after division of primary endosperm nucleus |
| Answer» E. | |
| 10092. |
When a small piece of dorsal lip of blastopore of frog's early gastrula is transplanted into another gastrula of similar age at ventral lip, the result is [MP PMT 1990] |
| A. | Death of the graft tissue |
| B. | The host gastrula undergoes abnormal development |
| C. | The host gastrula remains normal and unaffected |
| D. | The graft tissue induces development of another notochord in the host |
| Answer» E. | |
| 10093. |
In the development of man which structures are formed from splanchnopleure. |
| A. | Muscles and connective tissue of digestive tube |
| B. | Vertebral column and spinal cord |
| C. | Brain and its coverings |
| D. | Urinogenital organs |
| Answer» B. Vertebral column and spinal cord | |
| 10094. |
If the ectoderm from neural tissue area is removed from the embryo and transplanted in place of presumptive belly ectoderm embryo will develop [AIIMS 1983; AFMC 1985] |
| A. | Without a neural tube |
| B. | With a neural tube |
| C. | With two ectodermal coats |
| D. | With two neural tube |
| Answer» D. With two neural tube | |
| 10095. |
Blastopore is found in [MP PMT 1998] |
| A. | Blastula and is opening of archenteron |
| B. | Blastula and is opening of blastocoel |
| C. | Gastrula and is opening of archenteron |
| D. | Gastrula and is opening of blastocoel |
| Answer» D. Gastrula and is opening of blastocoel | |
| 10096. |
Which of the following is not correct for gastrulation [RPMT 2002] |
| A. | Archenteron is formed |
| B. | All germinal layers are formed |
| C. | Morphogenetic movements |
| D. | Some blastomeres & blastocoel degenerate |
| Answer» E. | |
| 10097. |
During the course of development, cells in various regions of embryo become variable in morphology and eventually perform diverse functions. This process is known as [CBSE PMT 1989; CMC Vellore 1993] |
| A. | Rearrangement |
| B. | Differentiation |
| C. | Metamorphosis |
| D. | Organisation |
| Answer» C. Metamorphosis | |
| 10098. |
Which of the following structure originates from ectoderm [RPMT 1995] |
| A. | Stomodaeum |
| B. | Proctodaeum |
| C. | Mesodaeum |
| D. | [a] and [b] both |
| Answer» E. | |
| 10099. |
The literal meaning of 'gastrulation' is [MP PMT 1994] |
| A. | Formation of primary germ layers |
| B. | Formation of a gut |
| C. | Morphogenetic movement |
| D. | Commencement of organogenesis |
| Answer» C. Morphogenetic movement | |
| 10100. |
Middle gastrula is characterised by [CPMT 1993] |
| A. | Formation of yolk plug |
| B. | Archenteron just beings to form |
| C. | Blastopore and arhenteron are present |
| D. | Yolk plug shifts towards blastopore |
| Answer» B. Archenteron just beings to form | |