biology Mcqs
1351. Stimulus for CCK hormone is___________?
comments icon0
A. Fat, Protein

B. Acid

C. Base

D. Both A & B

1352. In which organ RBC are selectively destroyed/ recycled by macrophages?
comments icon0

A. Liver

B. Spleen

C. Kidney

D. Pancreas

1353. Which Of The Following Produces Harmful Gases_________?
comments icon0

A. None of these

B. Motor Vehicles

C. Plants

D. Bacteria

1354. There are cells in human body called Faggot cells which cause__________?
comments icon0

A. AIDS

B. Tuberculosis

C. Smallpox

D. Leukaemia
1355. 2. Which one of the following organisms can serve as a biofertilizer for rice crop?
comments icon0

A. None of these

B. Mycorrhizal fungi

C. Rhizobium sp.

D. Blue-green algae
1356. Term the time during which an orgnism is present in the body before causing disease ?
comments icon0

A. Inclubation time

B. Rest period

C. Sleeping period

D. Incubation period
1357. A single heart beat involves ________ stages.
comments icon0

A. 4

B. 3

C. 1

D. 2

1358. Sessile flowers have _________ ?
comments icon0
A. No pedicles

B. No petals

C. Irregular shape

D. No scent

1359. Balbiani discovered special type of chromosome from the salivary gland of chironomus larva which are recognized by the presence of ________?
comments icon0

A. Bands

B. Loops

C. Both bands and loops

D. ll of the above

1360. How many milky teeth or primary teeth does a human have?
comments icon0

A. 33

B. 15

C. 20

D. 32

1361. Which one of the following remove nucleotides from the ends of DNA or RNA?
comments icon0

A. S 1 nuclease

B. Exonuclease

C. Deoxyribonuclease

D. Endonuclease

1362. Joints between flat bones of skull are termed as ____________ ?
comments icon0

A. Suture

B. Sutural joints

C. Syndesmosis

D. Both A and B
1363. Y-chromosome is _________?
comments icon0

A. Acentric

B. Acrocentric

C. Submetacentric

D. Telocentric

1364. Terrestrial plants carry out ________ of total photosynthesis on the earth?
comments icon0

A. 20%

B. 10%

C. 50%

D. None of these

1365. A giant chromosome with a number of chromonemeta is ________ ?
comments icon0

A. Lampbrush chromosome

B. Polytene chromosome

C. Supernumerary chromosome

D. Hetero chromosome

1366. Highly intelligent Mammals are_________?
comments icon0

A. bat

B. dolphin

C. rat

D. Elephant

1367. Division of nucleus is termed as___________ ?
comments icon0
A. Karyokinesis

B. Meiosis

C. Anaphase

D. Cytokinesis

1368. Muscle fatigue occurs due to accumulation of___________?
comments icon0

A. Acidic acid

B. Citric acid

C. Lactic acid

D. Butyric acid

1369. Which one of the following is called the Blood Bank?
comments icon0
A. Spleen

B. Liver

C. Kidneys

D. Heart

1370. Like enzymes , co enzyme can be used ?
comments icon0

A. only once

B. non of above

C. again and again

D. only few times

1371. HIV is a ________ virus?
comments icon0

A. DsRNA

B. DsDNA

C. SsRNA

D. SsDNA

1372. The term gene refers to __________?
comments icon0

A. A sequence of Amino

B. A linkage group

C. A portion of RNA

D. A portions of DNA
1373. Cats mostly show which type of Diabetes Mellitus?
comments icon0

A. ype 1 diabetes

B. Type 2 diabetes

C. oth A. & B

D. None of these

1374. How many types of genomic mapping are there?
comments icon0
A. 2

B. 5

C. 4

D. None of these

1375. homeostasis discovered by __________?
comments icon0

A. None of these

B. Jons jacob Berzeliis

C. Walter Bradford Cannon

D. Anselme Payen

1376. Nutritionally Viruses are__________?
comments icon0

A. Absorptive heterotrophs

B. Obligate parasite

C. Autotrophs

D. Heterotrophs

1377. The expected number of RBCs in a single drop, or microliter, of blood is _________ million in Men.
comments icon0
A. 4.5 to 6.2 million

B. 3.2 to 7.2 million

C. 3.4 to 6.8 million

D. 4.0 to 5.2 million

1378. The first ever vascular plants are_________?
comments icon0

A. Dryopteris

B. Cooksonia

C. Selaginella

D. Adiantum

1379. What is the Pathogen that causes Acne?
comments icon0

A. Mycobacterium

B. staphylococcus

C. Streptococcus

D. Propionibacterium
1380. Enzyme discovered by: ___________?
comments icon0

A. Walter Bradford Cannon

B. Anselme Payen

C. Jons Jacob Berzelius

D. None of these

1381. Which is NOT an example of a microbial symbiosis?
comments icon0

A. tapeworm in the cow intestine

B. protozoans found within termites

C. bacteria passing through the placenta

D. bacteria in the human colon

1382. Kranz anatomy is a characteristic feature of_________?
comments icon0
A. C4 plants

B. C2 plants

C. CAM plants

D. C3 plants

1383. Which of the following allows precise muscular movements?
comments icon0

A. Cerebrum

B. Hypothalamus

C. Cerebellum

D. Thalamus

1384. The hepatic portal vein drains blood to liver from___________?
comments icon0

A. Kidney

B. Intestine

C. Heart

D. Stomach

1385. Human skin colour is _________?
comments icon0

A. Epistatic

B. Multifactorial

C. Polygenic

D. Pleiotropic

1386. Who introduced Homeopathy in 1796?
comments icon0

A. Hakim Ajmal Khan

B. Samuel Hahnemann

C. Franz Anton Mesmer

D. Edward Jenner

1387. Which tissue of plants conducts food to its body?
comments icon0

A. None of the above

B. Xylem

C. Parenchyma

D. Phloem
1388. Oncogene is responsible for:_________?
comments icon0
A. Cancer

B. Malaria

C. Lung Disease

D. Typhoid

1389. The normal range of the number of white blood cells in a microliter of blood is between _________ ?
comments icon0

A. None of these

B. 4,900 and 12,000

C. 2,500 and 09,300

D. 4,500 and 10,000
1390. programmed death of cells is called _____________________?
comments icon0

A. Necrosis

B. Apoptosis

C. All of these

D. Blood cancer

1391. Which of the following gases readily combines with the haemoglobin of the blood?
comments icon0

A. Methene

B. Oxygen

C. Carbon monoxide

D. Nitrogen dioxide

1392. Guard cells of stoma are ________ ?
comments icon0

A. Convex in shape

B. Kidney-shaped

C. Irregular in shape

D. Long and cylindrical in shape

1393. Which of the following vitamins is useful in ostcoimalacia?
comments icon0

A. Vitamin A

B. Vitamin D

C. Vitamin C

D. Vitamin E

1394. what is the scientific name of onion?
comments icon0
A. Allium cepa

B. Rana tigrina

C. Aspergillus

D. None of these

1395. Mendal studied _________ traits of pisum sativum?
comments icon0

A. Nine

B. Eight

C. Seven

D. Six

1396. The form of carbohydrate which is synthesised in a plants is_________?
comments icon0

A. Starch

B. Glucose

C. Cellulose

D. Fructose

1397. The skull contains?
comments icon0

A. 20 bones

B. 18 bones

C. 28 bones

D. 22 bones
1398. Where is the thyroid gland located_________ ?
comments icon0

A. In the brain

B. In the thighs

C. At the back of neck

D. Near the liver

1399. The function of chrosomes of carrying genetic information from cell generation to another is performed by _________?
comments icon0

A. Calcium

B. DNA

C. Histones

D. RNA

1400. The doctor who helps in the delivery of babies is an ___________?
comments icon0
A. Obstetrician

B. Pediatrician

C. Podiatrist

D. Gynecologist