Viruses have

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5. In a gamete there will be
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8. Haemoglobin is dissolved in the plasma of
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13. Man has ____ pairs of salivary glands.
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15. The heart of the human embryo starts beating in the _____ week of its development.
16. Maintenance of pregnancy is under the control of
17. Scrub jungle Is characterised by
18. Which organelle in the cell, other than nucleus, contains DNA?
19. Which among the following diseases is not caused by viral infection?
20. Scurvy is prevented by vitamin
21. Which of the following crops helps in nitrogen fixation?
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24. What is an antigen?
25. Xerophthalmia is a deficiency disease. Deficiency of _________ causes it.
26. Organisms that depend only on raw plant products are said to be
27. The dreaded virus which, on reaching the central nervous system, produces spasms of the muscles of the…
28. Wallace's line is a line
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