Biology Worksheet With Answers Page 4
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10(a) suppression (b) inactivation
(c) epistasis (d) dominance
Ans. (c)
25. What Is common among amylase, rennin and trypsin?
(a) These all are proteins
(b) These all are proteolytic enzymes
(c) These are produced in stomach
(d) These all are hormones
Ans. (a)
26. The vagus nerve Is the cranial nerve numbering:
th
th
(a) 10
(b) 9
th
th
(c) 7
(d) 5
Ans. (a)
27. The kidney of an adult frog is:
(a) pronephros (b) mesonephros
(c) metanephros (d) opisthonephros
Ans. (b)
28. Which of the following is free living aerobic, non- photosynthetic nitrogen fixing bacterium?
(a) Rhizobium (b) Azotobacter
(c) Nostoc (d) Azospirillium
Ans. (b)
29. Is a person shows production of Enterferons in his body the chances are that he has got an
infection of:
(a) typhoid (b) measles
(c) tetanus (d) malaria
Ans. (b)
30. Cent romere is a part of:
(a) ribosomes
(b) mitochondria
(c) chromosome
(d) endoplasmic reticulum
Ans. (c)
31. NADPH2 is generated through:
(a) photosystem I (b) photosystem II
(c) anaerobic respiration (d) glycolysis
Ans. (a)
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