MDCAT Biology Chapter 3 MCQ's Test With Answers

MDCAT Biology Chapter 3 MCQ's Test

Sr. # Questions Answers Choice
1 In general appearance helical phages posses which shape? Rod Spiral Cubical None of these
2 Bacteriophages posses symmetry Cubical Helical Both of these Spiral
3 Complete mature and infectious particle is known as Viroid Prions Virions None of these
4 Which of these has lipids in it? Envelope Tail core Capsid Genome
5 Viruses are resistant to Penicillin only Streptomycin only Broad range of antibiotics All of these
6 Which filtrate from a lysed colony can transfer lytic effect to healthy colony Virus free Bacteria free, Concentrated soln Bacteria free, dilute soln Both B & C
7 Ivanowski ibtained _________ filtrate from ground up infected plants Highly diluted Virus free Bacteria free None of these
8 After how many weeks of 1st inoculation boy Phipps was inoculated with small pox pus? 2 19 8 6
9 Viruses are the particles of which? Nucleic acid only Proteins only Nucleic acid & Protein None of these
10 Prions may be simply infectious DNA RNA Proteins Both a & b
11 Prions were discovered in 1999 1983 1948 2001
12 Vaccination for HIV on experimental basis has been started in? 1999 2000 2004 2001
13 Lysozymes are abundant in Tears Human Milk Saliva All of these
14 Lysozyme damages the bacterial call wall by Oxidation Hydrolysis Reduction None of these
15 Viroids are plant pathgens consisting of Proteins only Circular single stranded RNA DNA without capsid None of these
16 RNA retroviruses have a special enzyme which synthesizes the Proteins RNA DNA DNA & RNA
17 Viruses are ________ parasites Intercellular obligate Intracellular obligate Facultative Unicellular
18 250nm is the size of which of the followings? Pox virus Adenovirus Parvovirus Polio virus
19 Bacteria can't pass through these filters Paper Glass Whatmann Porelain
20 He discovered the agent,which caused TMD Stanley Chamberland Ivanowski None of these
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