biology Mcqs
1301. Haemoglobin is dissolved in the blood of:___________?
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A. Sponges

B. Earthworm

C. Hydra

D. Cockroach

1302. Most abundant muscles in human beings?
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A. All of these

B. Cardiac Muscles

C. Smooth Muscles

D. Skeletal Muscles
1303. Outer surface of bones is covered by a dense layer of connective tissue, called as ___________ ?
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A. Woven bone

B. Epithelium lining

C. Connective lining

D. Periosteum
1304. AIDS is caused by ________ virus?
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A. HAV

B. Pigs

C. HIV

D. Rabies

1305. lub sound is produced after _________ ?
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A. The bicuspid and tricuspid valves suddenly close

B. The semilunar valves are closed

C. The ventricles are fully contracted

D. The ventricles start to relax

1306. Pineal gland situated in________?
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A. Neck

B. Brain

C. Stomach

D. Above kideys

1307. operculum is present in________?
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A. sea fish

B. cartilaginous fish

C. bony fish

D. None of these

1308. Length of membranous urethra is about ___________ ?
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A. 9 cm

B. 5 cm

C. 2 cm

D. 1 cm
1309. DNA of mitochondria is__________?
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A. straight

B. spring

C. All of these

D. circular
1310. Which of the following cell organelles is absent in animal cells and present in a plant cell?
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A. Mitochondria

B. Cell wall

C. Cytoplasm

D. Vacuoles

1311. Which one of the following animal has two separate circulatory pathways?
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A. Frog

B. Shark

C. Whale

D. Lizard

1312. The elimination of toxic nitrogenous waste and excess water in man is by______?
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A. Circulation

B. Pollution

C. Reproduction

D. Excretion
1313. Major Biological Issues of today________?
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A. Addictive drugs

B. Human population growth

C. All of these

D. Pollution

E. Infectious diseases

1314. Laws of segregation and dominance were given by ________?
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A. Morgan

B. De Vries

C. Mendel

D. Darwin

1315. Linnaeus published the list of names of plants in___________?
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A. 1753

B. 1754

C. 1755

D. 1752

1316. PH of fresh Saliva?
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A. 8

B. 6

C. 7

D. 0

1317. Prokaryotes dont have:________?
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A. Nucleus

B. Cell membrane

C. None of these

D. Cytoplasm

1318. The sum of genes in a population is called ________?
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A. Lethal gene

B. Gene pool

C. Karyotype

D. Genotype

1319. Cotton, wool, silk are examples of ____________ ?
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A. Natural Fibres

B. Animal Fibres

C. Synthetic Fibres

D. Plant Fibres

1320. Insects responsible for transmitting diseases are called___________?
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A. None of these

B. Vectors

C. Hybirds

D. Drones

1321. Which one of the following is known as graveyard of RBCs?
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A. Spleen

B. Pancreas

C. None of these

D. Liver

1322. Biebs that are broke off from cell are called __________?
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A. Cytokinetic bodies

B. Apoptotic bodies

C. Tuberculosis bodies

D. Necrosis bodies

1323. Which of the following cells secrete insulin?
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A. Alpha cells

B. Nerve cells

C. Beta cells

D. Delta cells

1324. Typical example of water born disease_______?
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A. Cholera

B. Malaria

C. Influenza

D. Typhoid
1325. A line on map connecting places that receives equal solar radiation is called:________?
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A. Isohel

B. Isobar

C. None of these

D. Isochore

1326. Genetic information are carried in the form of long chain of molecules made-up-of _________?
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A. Nucleotides

B. Amino acids

C. RNA

D. Polypeptides

1327. Heart beats about ________ times in ones life.
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A. 3.7 Billion

B. 2.8 Billion

C. Infinite

D. 4.2 Billion

1328. A cistron is ________?
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A. Structural of gene

B. Functional unit of RNA

C. Replication unit of gene

D. Functional unit gene
1329. Steroids, a biologically active organic compound, are derived from __________?
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A. Carbohydrates

B. Hormones

C. Chemicals

D. Cholesterol
1330. Carrot is a source of_________?
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A. Vitamin A

B. Vitamin C

C. Vitamin D

D. Vitamin B

1331. how many kingdoms of life exist?
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A. 5

B. 1

C. None of these

D. 6

1332. Which one of the following is referred as the species occupation?
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A. Ecosystem

B. Niche

C. Biome

D. Autecology

1333. Non flowering plants are also called plant_________?
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A. Green

B. Abortic

C. None of these

D. coniferous
1334. In chrosomes, the material controlling heredity is ________ ?
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A. Chromocentres

B. Histones

C. DNA

D. RNA

1335. Kind of respiration through which skeletal muscles of human body gets the energy is ________ ?
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A. Aerobic respiration

B. Anaerobic respiration

C. Acidic respiration

D. Nitrogenous respiration

1336. In the human body Gall bladder is the part of the ___________ system?
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A. Nervous

B. Digestive

C. Reproductive

D. Respiratory

1337. What is the average adult Pulse rate?
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A. None of these

B. 72-80

C. 115-125

D. 140-150

1338. BOD refers to the __________?
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A. Bidding of Dermatology

B. Binding of Dirt

C. Biochemical occupied Date

D. Biochemical Oxygen demand
1339. Which of the following animals do not have jaws?
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A. Birds

B. Mammals

C. Protochordates

D. Reptiles

1340. the food ground in cockroach in______?
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A. crop

B. mesentron

C. gizzard

D. intestine

1341. The first cloned animal was____________?
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A. Cow

B. Rat

C. Goat

D. Sheep
1342. Metabolism of photosynthesis and respiration involves the knowledge of____________?
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A. Chemistry

B. Genetic engineering

C. Biochemistry

D. Biotechnology

1343. Which of the following are insulin dependent Glut receptors?
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A. Glut 2

B. Glut 1&3

C. Glut 4

D. Glut 1

1344. Deficiency of vitamin C will cause:__________?
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A. Scurvy

B. Beri-Beri

C. Night-blindness

D. Architis

1345. Crysanthemum is propagated by___________?
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A. corals

B. Suckers

C. None

D. corms

1346. Who is commonly known as the Father of Microbiology?
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A. Robert Hook

B. Charles Darwin

C. None of these

D. Antonie van Leeuwenhoek
1347. First time crossing over was observed in ___________?
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A. 1911

B. 927

C. 1811

D. 1990

1348. Which pollutant may lead to Black foot disease ?
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A. Hg

B. Cu

C. Cd

D. As
1349. A normal metaphase chromosome with a midial centromere is ________?
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A. Metacentric

B. Sub-metacentric

C. Acrocentric

D. Telocentric

1350. Fresh Yeast cells are good source of :___________?
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A. None of the above

B. Nicotine

C. Vitamin-B

D. Morphine