Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 49 of 150)

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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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Which of the following is an RNA virus:
A. Influenza virus
B. Herpes virus
C. Hbv
D. Pox virus
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Temperate phage may exist as_____________?
A. Prophage
B. Capsid
C. Viron
D. Retrovirus
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In the lytic cycle of bacteriophage the host DNA is__________?
A. Replicated
B. Turn off by the protein coat.
C. Digested into its nucleotides
D. Turned on by the removal of the protein coat
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Pepsinogen is produced from__________?
A. Mucous cells
B. Parietal cells
C. Zymogen cells
D. All of these
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Carbohydrates, fats & proteins are essential for_______________?
A. Metabolic processes of an organism
B. Providing energy
C. Formation of sturctures
D. All of these
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Dipeptides into amino acids are are converted through_____________?
A. Amino peptidase
B. Erypsin
C. Pepsin
D. Trypsin
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Magnesium is present in which of the following__________________?
A. Cytochromes
B. Atp
C. Chlorophyll
D. Haemoglobin
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Deficiency of which of the following causes chlorosis__________________?
A. Nitrogen
B. Magnesium
C. Iron
D. Both a and b
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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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