biology MCQs – Page 69

Practise multiple-choice questions from biology for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

biology Mcqs
1361. Which one of the following remove nucleotides from the ends of DNA or RNA?
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A. S 1 nuclease

B. Exonuclease

C. Deoxyribonuclease

D. Endonuclease

1362. Joints between flat bones of skull are termed as ____________ ?
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A. Suture

B. Sutural joints

C. Syndesmosis

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

B. Acrocentric

C. Submetacentric

D. Telocentric

1364. Terrestrial plants carry out ________ of total photosynthesis on the earth?
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A. 20%

B. 10%

C. 50%

D. None of these

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

B. Polytene chromosome

C. Supernumerary chromosome

D. Hetero chromosome

1366. Highly intelligent Mammals are_________?
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A. bat

B. dolphin

C. rat

D. Elephant

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

B. Meiosis

C. Anaphase

D. Cytokinesis

1368. Muscle fatigue occurs due to accumulation of___________?
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A. Acidic acid

B. Citric acid

C. Lactic acid

D. Butyric acid

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

B. Liver

C. Kidneys

D. Heart

1370. Like enzymes , co enzyme can be used ?
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A. only once

B. non of above

C. again and again

D. only few times

1371. HIV is a ________ virus?
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A. DsRNA

B. DsDNA

C. SsRNA

D. SsDNA

1372. The term gene refers to __________?
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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?
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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?
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A. 2

B. 5

C. 4

D. None of these

1375. homeostasis discovered by __________?
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A. None of these

B. Jons jacob Berzeliis

C. Walter Bradford Cannon

D. Anselme Payen

1376. Nutritionally Viruses are__________?
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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.
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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_________?
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A. Dryopteris

B. Cooksonia

C. Selaginella

D. Adiantum

1379. What is the Pathogen that causes Acne?
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A. Mycobacterium

B. staphylococcus

C. Streptococcus

D. Propionibacterium
1380. Enzyme discovered by: ___________?
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A. Walter Bradford Cannon

B. Anselme Payen

C. Jons Jacob Berzelius

D. None of these