Everyday Science MCQs

5120 MCQs  (Page 102 of 512)

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Which of the following is the smallest known virus:
A. Hepatitis virus
B. Retrovirus
C. Polio virus
D. Pox virus
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The agent of controversial nature causing mad cow infection is_____________?
A. Bacteria
B. Cowpox virus
C. Adenovirus
D. Prion
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Which of the following virus has special affiliations with the tumor production:
A. Hepatitis virus
B. Retrovirus
C. Polio virus
D. Pox virus
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Which of the following is incorrect for the lysogenic cycle in life cycle of bacteriophage_____________?
A. Phage when gets incorporated with the bacterial chromosome is called prophage
B. The bacterium continues to live and reproduce normally
C. Lysogenic bacteria may get infected by the related phage
D. The cycle may convert into lytic type resulting from environmental exposure
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An enzyme which can convert single stranded RNA into double stranded viral DNA is called____________?
A. Dnaase
B. Rnaase
C. Dna polymerase
D. Reverse transcriptase
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In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called______________?
A. Lysis
B. Lysogeny
C. Induction
D. Adsorption
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Which of the following disease results in Paralysis due to viral attack on C.N.S:
A. Measles
B. Herpes simplex
C. Hepatitis
D. Polio
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In life cycle of bacteriophage which step occur after attachment of prophage with the receptor site of the bacterial cell wall_____________?
A. Absorption
B. Multiplication
C. Lysogeny
D. Penetration
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Tobacco mosaic virus is__________?
A. Spherical
B. Rod shaped
C. Tadpole like
D. Hexagonal
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In the Lysogenic cycle the DNA of the bacteriophage__________________?
A. Joins the bacterial chromosomes
B. Attaches to the inner surface of the host membrane
C. Is immediately degraded when enters the host
D. Goes directly to host ribosomes for translation
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Word of the Day
20 Jul
Abundance
a very large quantity of something.
بہتات، زیادہ، فراوانی، کثرت

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