biology Mcqs
1201. The wax present on the body of cockroach is secreted:
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A. Mucocytes

B. Leucocytes

C. Oenocytes

D. Granulocytes

1202. Gram +ve bacteria on treatment with crystal violet dye give _________colour?
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A. green

B. purple

C. pink

D. red

1203. Diatoms belong to___________?
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A. Chrysophyta

B. Bacillariophyceae

C. Xanthophyceae

D. Both A. and B.
1204. Snails belong to__________?
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A. Athropods

B. Cephalopodsxc

C. Gastropods

D. Bivalves

1205. Introduction of vaccine within the body to produce immunity is an example of____________?
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A. Artificially induced passive immunity

B. Artificially induced active immunity

C. Naturally induced active immunity

D. Naturally induced passive immunity

1206. Normal body temperature in mamals like human beings is____________?
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A. 26 28C

B. 36 38C

C. 46 48C

D. 56 58C

1207. Thermostat of human body is present in__________?
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A. Hind Brain

B. Hypothalamus

C. Thalamus

D. Fore brain

1208. Fishes, most of the invertebrates and amphibians are examples of ________ animals?
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A. Endotherms

B. Ectotherms

C. Heterotherms

D. Homeotherms

1209. Production of pyrogens is a __________ phenomenon?
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A. Protective

B. Constructive

C. Aggressive

D. Destructive

1210. Entamoeba histolytica is a parasite found in mans__________?
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A. Liver

B. Lungs

C. Kidneys

D. Intestines
1211. If the radius of blood vessels of a person decreases his/her blood pressure will__________?
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A. Decrease

B. Becomes zero

C. Increase

D. Remain Same

1212. The blood vessel carrying blood from the lungs to the heart is_______?
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A. Pulmonary vein

B. Hepatic artery

C. Renal artery

D. Pulmonary artery

1213. Morgan studied how many traits of Drosophila?
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A. All

B. 85

C. 7

D. 67

1214. Who is the father of carbohydrate ?
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A. Jons jacob Berzeliis

B. Claude Silbert Hudson

C. Anselme Payen

D. Justus von Liebig

1215. How many hearts does an Octopus have?
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A. 2

B. 1

C. 4

D. 3
1216. Examples of Epigeal germination include _________ ?
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A. Corn

B. Broad bean seed

C. Maize

D. Sword bean seed
1217. from right ventricle the blood is pushed into________?
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A. None of these

B. aorta

C. pulmonary trunk

D. brain

1218. Acetabularia is a kind of __________ ?
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A. Fungi

B. Multicellular alga

C. Unicellular alga

D. Protist

1219. _________ is a condition characterized by an abnormal inability to see in dim light or at night.
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A. Nyctalopia

B. Hyperopia

C. Myopia

D. All of the above

1220. The process in which a sperm joins with an egg is__________?
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A. Pollination

B. Respiration

C. Asexual reproduction

D. Fertilization
1221. Genetic information carriers is/are____________?
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A. DNA

B. Chromosomes

C. Gene

D. Nucleus

1222. Stress indicating hormones are____________?
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A. Adrenaline

B. ACTH

C. All of these

D. Cortisol

1223. Main use of salt in diet is to_________?
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A. Increase the taste

B. produce small amount of hydrochloric acid required for digestion

C. Ease the process of cooking

D. None of the above

1224. Another name for liver is called ___________ ?
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A. Hepta

B. Heptum

C. Hepar

D. Hilum

1225. Smooth muscles, cardiac muscles and glands are regulated by:
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A. Sympathetic nervous syetem

B. Parasympathetic nervous system

C. Autonomous nervous system

D. Central nervous system

1226. In onion food is stored in_______________?
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A. Bud

B. Root

C. Aerial stem

D. Scale leaves
1227. Fuel used by cells in cellular respiration to get energy is ________ ?
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A. Sugar

B. Polypeptides

C. polysaccharides

D. Glucose
1228. What content does only a plant cell has___________?
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A. Cell Membrane

B. Cytoplasm

C. Chromatin

D. Cell wall
1229. What is the percentage of water present in our brain?
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A. 73%

B. 95%

C. 85%

D. 97%

1230. Bio means: ___________?
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A. Community

B. Cycle

C. None of These

D. Life
1231. An increase in the heart rate is termed as:_________?
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A. Bradycardia

B. Non of these

C. Trachybradycardia

D. Tachycardia
1232. Coelom is divided into septa in case of:__________?
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A. Annelids

B. Cniderians

C. Molluscs

D. Sponges

1233. Genes are made up of ________ ?
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A. Polynucleotides

B. Hydrocarbons

C. Histones

D. Lipoproteins

1234. Wilkins X-ray diffraction showed the diameter of the DNA helix as ________?
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A. 40A

B. 30A

C. 20A

D. 10A

1235. Dysentery is a disease that can lead to severe diarrhea with mucus or blood in the feces caused by inflammation in?
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A. Stomach

B. Colon

C. Small intestine

D. Liver

1236. Parkinson is a disease of_________?
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A. Brain

B. Bones

C. Eyes

D. Lungs

1237. The part the body may be repaired, replaced or removed _____________?
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A. Pharmacology

B. Medicine

C. Physiology

D. Surgery
1238. Acetabularia mediterranea has a cap of _________ ?
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A. Cone shape

B. Regular shape

C. Triangular shape

D. Circular shape

1239. Homologous chrosomes which are present in male and female both are known a _________?
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A. Heterosomes

B. Replosomes

C. Autosomes

D. Androsomes

1240. A species inhabiting different geographical areas is known as_________ ?
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A. Hetropatric Specie

B. Allopatric Specie

C. Homopatric Specie

D. Astroparic specie

1241. New alleles can be introduced into a populations gene pool by:_________?
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A. Mutation

B. Natural selection

C. Gene flow

D. Both A & C
1242. Zygote with three copies chromosome 21, is known to cause _________?
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A. Hay fever

B. Parkinson Disease

C. Downs syndrome

D. Scurvy

1243. The cardio respiratory capacity is related to____________?
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A. Agility

B. Flexibility

C. Normal physical endurance

D. Strength

1244. What does lalopathy mean?
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A. A disorder of speech

B. A disorder of hearing

C. A disorder of learning

D. None of the above

1245. Lampbrush chromosomes are found inside _______?
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A. Salvary gland of silk moth

B. Salvary glands of Drosophila

C. Nucleus of man

D. Oocytes of frog
1246. Dorsal root of spinal nerves contain only __________ ?
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A. Receptor neurons

B. Stimulators

C. Effectors neurons

D. Detector neurons

1247. Membrane that separates cytoplasm and nucleus is called ___________ ?
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A. Cell wall

B. Cell membrane

C. Nuclear envelop

D. Boundary

1248. _________ stimulates the production of gastric juice in the stomach:
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A. Rennin

B. Enterokinase

C. Gastrin

D. None of these

1249. Smallest bone of human body is?
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A. vomer

B. stapes

C. occipital

D. navicular

1250. Which of the following cell organelles does not contain DNA?
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A. Lysosomes

B. Chloroplast

C. None of these

D. Nucleus