Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 48 of 150)

Attempt Biology Quiz
Complex symptoms like severe pneumonia vascular tumor sudden weight loss swollen lymph nodes and immune deficiency are features of:
A. Polio
B. Hepatitis
C. Aids
D. Hiv
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An isolated virus is not considered living since it________________?
A. Separates in to two inner parts
B. Can not metabolize
C. Rapidly looses its genome chemical inert
D. Is coated with an air tight shield
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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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Word of the Day
13 Jul
Debunk
expose the falseness or hollowness of (an idea or belief).
بے نقاب کرنا، پول کھولنا

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