MCQ on pBR 322

Biotechnology MCQ 01

Introduction to Biotechnology MCQ (1). DNA base pairs in the Human Genome are about: a.       2 X 107 b.      3 X 109 c.       4 X 108 d.      7 X 107 (2). Which of the following is a dual resistance vector? a.       M13 b.      pUC 18 c.       pUC 19 d.      pBR […]

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Free Net Life Science Study Materials

CSIR JRF NET Life Sciences Model Question Paper for June 2017 Exam (Set 1/4)

(1). Action of topoisomerase leads to changes in a.       Linking number of single-stranded linear DNA b.      Lining number of double stranded linear DNA c.       Linking number of closed circular single stranded DNA d.      Linking number of closed circular double stranded DNA (2). Sarcomas are cancers originating from: a.       Spleen b.      […]

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mcq on history of microbiology

MCQ on History of Microbiology

(1). Who discovered Mycobacterium tuberculosis? a.       Koch b.      Jenner c.       Pasteur d.      Virchow (2). Mycobacterium lepree was discovered by: a.       Pasteur b.      Jenner c.       Koch d.      Hansen (3). Antibodies were discovered by: a.       Edelman b.      Porter c.       Edelman and Porter d.      Edelman and Hess (4). Streptococcus pneumonia was discovered by: […]

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Lecture notes in Microbiology

Microbiology Scientists and their Contributions (MCQ-4)

MCQ on Scientists and Discoveries in Microbiology Part 1 (1). Scientist who demonstrated that open tubes of broth remained free of microbes when air was free of dust: a.       Tyndal b.      Pasteur c.       Petri d.      Francesco Redi (2). Who discovered bacterial transformation? a.       Jenner b.      Griffith c.       […]

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