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MCQOPTIONS
This section includes 6820 Mcqs, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 3101. |
Sickle cell anemia was discovered by |
| A. | Vernon Ingram |
| B. | Sanger |
| C. | Miescher |
| D. | none of these |
| Answer» B. Sanger | |
| 3102. |
Which bone is called beauty bone in women |
| A. | sternum |
| B. | clavicle |
| C. | maxilla |
| D. | radius |
| Answer» C. maxilla | |
| 3103. |
In all coelentrates endoderm give rise to |
| A. | flowering plants |
| B. | digestive system |
| C. | reproductive system |
| D. | circulatory system |
| Answer» C. reproductive system | |
| 3104. |
Detachment of myosin head and actin in rigor mortis occurs due to |
| A. | stored ATP in body |
| B. | hypercalcemia |
| C. | autolysis in body |
| D. | hyperactivity of mitochondria |
| Answer» D. hyperactivity of mitochondria | |
| 3105. |
Release of the ovum from ovary is called |
| A. | fertilization |
| B. | ovulation |
| C. | implantation |
| D. | none of these |
| Answer» C. implantation | |
| 3106. |
In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen |
| A. | echinodermata |
| B. | mollusca |
| C. | nematoda |
| D. | arthropoda |
| Answer» E. | |
| 3107. |
Snails belong to |
| A. | gastropods |
| B. | bivalves |
| C. | arthropods |
| D. | platyhelminthes |
| Answer» B. bivalves | |
| 3108. |
Outside the thallus of Marchantia there are special structures called |
| A. | stem tuber |
| B. | rhizoids |
| C. | sporangium |
| D. | none of these |
| Answer» C. sporangium | |
| 3109. |
The vascular plants are termed as |
| A. | tracheophytes |
| B. | bryophytes |
| C. | pteridophytes |
| D. | all of these |
| Answer» B. bryophytes | |
| 3110. |
Tobacco mosaic virus was crystallized by |
| A. | Pasteur |
| B. | Chamberland |
| C. | Stanely |
| D. | Ivanowski |
| Answer» D. Ivanowski | |
| 3111. |
Gram +ve bacteria on treatment with crystal violet dye give colour |
| A. | sporozoites |
| B. | green |
| C. | purple |
| D. | pink |
| Answer» D. pink | |
| 3112. |
Malarial parasite is injected into man as |
| A. | Whittaker |
| B. | merozoites |
| C. | zygote |
| D. | none of these |
| Answer» B. merozoites | |
| 3113. |
Non-enveloped naked viruses are known as |
| A. | prions |
| B. | bacteriophages |
| C. | oncoviruses |
| D. | virions |
| Answer» E. | |
| 3114. |
Flagella are composed of |
| A. | micro tubules |
| B. | micro filaments |
| C. | intermediate filaments |
| D. | glycoproteins |
| Answer» B. micro filaments | |
| 3115. |
The life and activities of a cell is controlled by |
| A. | cytoplasm |
| B. | nucleus |
| C. | vacuole |
| D. | mitochondria |
| Answer» C. vacuole | |
| 3116. |
Accumulation of lipid molecules in brain cells lead to |
| A. | paralysis |
| B. | oedema |
| C. | mental retardation |
| D. | all of these |
| Answer» D. all of these | |
| 3117. |
It is very serious disease of brain which is caused by fungi |
| A. | cholesterol |
| B. | meningitis |
| C. | hepatitis |
| D. | none of these |
| Answer» C. hepatitis | |
| 3118. |
The simplest amino acid is |
| A. | alanine |
| B. | glycine |
| C. | valine |
| D. | phenylalanine |
| Answer» C. valine | |
| 3119. |
The exchange of chromosal segments i.e.crossing over occurs during |
| A. | first meiotic division |
| B. | mitotic division |
| C. | second meiotic division |
| D. | none of these |
| Answer» B. mitotic division | |
| 3120. |
Many bacteria in our digestive system synthesize vitamins for example vitamin |
| A. | ring worm |
| B. | B2 |
| C. | B12 |
| D. | B6 |
| Answer» D. B6 | |
| 3121. |
How many molecules of carbon dioxide are formed in one Krebs cycle |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 1 |
| Answer» B. 4 | |
| 3122. |
Which enzyme digest carbohydrates |
| A. | lipase |
| B. | proteases |
| C. | amylases |
| D. | none of these |
| Answer» D. none of these | |
| 3123. |
The pancreas produce digestive enzymes and release in the |
| A. | stomach |
| B. | esophagus |
| C. | large intestine |
| D. | small intestine |
| Answer» E. | |
| 3124. |
The non-protein part of enzyme is called |
| A. | co-enzyme |
| B. | activator |
| C. | cofactor |
| D. | substrate |
| Answer» D. substrate | |
| 3125. |
Group of tissues doing a particular job |
| A. | population |
| B. | system |
| C. | organelle |
| D. | individual |
| Answer» D. individual | |
| 3126. |
Members of the same species living in the same place at the same time make |
| A. | red blood cell |
| B. | ecosystem |
| C. | community |
| D. | trophic level |
| Answer» D. trophic level | |
| 3127. |
Nucleic acid were first isolated by |
| A. | Erwin Chargaff |
| B. | Friedrich Miescher |
| C. | Rosalind Franklin |
| D. | none of these |
| Answer» C. Rosalind Franklin | |
| 3128. |
One of the following is not pyrimidine |
| A. | thymine |
| B. | cytosine |
| C. | guanine |
| D. | uracil |
| Answer» D. uracil | |
| 3129. |
Which one is endoparasite |
| A. | pentose sugar |
| B. | ticks |
| C. | virus |
| D. | tape worm |
| Answer» E. | |
| 3130. |
Penicillin is obtained from |
| A. | soil |
| B. | bacteria |
| C. | fungi |
| D. | virus |
| Answer» D. virus | |
| 3131. |
The structure that is absent in animal cell |
| A. | cell wall |
| B. | nulcleus |
| C. | centriole |
| D. | mitochondria |
| Answer» B. nulcleus | |
| 3132. |
Which is called power house of the cell |
| A. | golgi complex |
| B. | mitochondria |
| C. | nucleus |
| D. | endoplasmic reticulum |
| Answer» C. nucleus | |
| 3133. |
Fructose is |
| A. | C-N link |
| B. | hexose sugar |
| C. | heptose sugar |
| D. | none of these |
| Answer» B. hexose sugar | |
| 3134. |
Hepatitis is inflammation of |
| A. | stomach |
| B. | kidney |
| C. | lungs |
| D. | liver |
| Answer» E. | |
| 3135. |
Vaccine for rabies was developed by |
| A. | Robert Koch |
| B. | Robert Brown |
| C. | Pasteur |
| D. | none of these |
| Answer» D. none of these | |
| 3136. |
Malaria is caused by |
| A. | mosquito |
| B. | plasmodium |
| C. | virus |
| D. | bacteria |
| Answer» C. virus | |
| 3137. |
Study of fossils is called |
| A. | paramecium |
| B. | paleontology |
| C. | biodiversity |
| D. | haematology |
| Answer» C. biodiversity | |
| 3138. |
Thread like structures in fungi are called |
| A. | mycelium |
| B. | hyphae |
| C. | sporangium |
| D. | spores |
| Answer» C. sporangium | |
| 3139. |
The smallest bacteria on earth is |
| A. | mycoplasma |
| B. | E.coli |
| C. | salmonella |
| D. | clostridium |
| Answer» B. E.coli | |
| 3140. |
Breeding and management of bees is known |
| A. | psychology |
| B. | sericulture |
| C. | horticulture |
| D. | apiculture |
| Answer» E. | |
| 3141. |
On which of the following plants did Gregor Mendal perform his classical experiment |
| A. | corn |
| B. | mustard |
| C. | pea |
| D. | sunflower |
| Answer» D. sunflower | |
| 3142. |
Animal lacks |
| A. | starch |
| B. | cellulose |
| C. | protein |
| D. | lipids |
| Answer» C. protein | |
| 3143. |
Phloem tissue is found in |
| A. | liver |
| B. | placenta |
| C. | plants |
| D. | none of these |
| Answer» D. none of these | |
| 3144. |
Among the biotic components of the ecosystem, the producer system is |
| A. | carnivores |
| B. | herbivores |
| C. | plants |
| D. | animals |
| Answer» D. animals | |
| 3145. |
Plant bends towards the source of light on account of the movement known as |
| A. | geotropism |
| B. | hydrotropism |
| C. | chemotropism |
| D. | phototropism |
| Answer» E. | |
| 3146. |
Process of cell division take place by |
| A. | nucleolus |
| B. | fertilization |
| C. | reproduction |
| D. | none of these |
| Answer» B. fertilization | |
| 3147. |
Highly intelligent mammals are |
| A. | rat |
| B. | bat |
| C. | dolphin |
| D. | elephant |
| Answer» D. elephant | |
| 3148. |
Prokaryotic cell lack |
| A. | proteins |
| B. | nuclear membrane |
| C. | both a and b |
| D. | none of these |
| Answer» D. none of these | |
| 3149. |
Oxygen released in the process of photosynthesis comes from |
| A. | water |
| B. | oxygen |
| C. | carbon dioxide |
| D. | nitrogen dioxide |
| Answer» B. oxygen | |
| 3150. |
DNA structure was first described by |
| A. | Pasteur |
| B. | Robert Koch |
| C. | Watson and Crick |
| D. | Carlous Linnaues |
| Answer» D. Carlous Linnaues | |