631. Which of the following is an RNA virus:
A. Influenza virus
B. Herpes virus
C. HBV
D. Pox virus

632. Temperate phage may exist as_____________?
A. Prophage
B. Capsid
C. Viron
D. Retrovirus

633. 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

634. Pepsinogen is produced from__________?
A. Mucous cells
B. Parietal cells
C. Zymogen cells
D. All of these

635. Carbohydrates, fats & proteins are essential for_______________?
A. Metabolic processes of an organism
B. Providing energy
C. Formation of sturctures
D. All of these

636. Dipeptides into amino acids are are converted through_____________?
A. Amino peptidase
B. Erypsin
C. Pepsin
D. Trypsin

637. Magnesium is present in which of the following__________________?
A. Cytochromes
B. ATP
C. Chlorophyll
D. Haemoglobin

638. Deficiency of which of the following causes chlorosis__________________?
A. Nitrogen
B. Magnesium
C. Iron
D. Both A and B

639. Mastication is carried out by__________?
A. Teeth
B. Tongue
C. Smooth muscles
D. All of these

640. Deficiency of K+ causes_____________?
A. Stunted growth & strong chlorosis
B. No electron transport chains
C. Premature death of leaves
D. Stunted growth of roots

NOTE
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