1. A
   Nuclear division
2. B
   Protein synthesis
3. C
   Motility
4. D
   Transportation

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1. A
   A-II, B-I, C-IV, D-III
2. B
   A-II, B-III, C-IV, D-I
3. C
   A-III, B-IV, C-I, D-II
4. D
   A-III, B-I, C-IV, D-II

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1. A
   Both A and R are true and R is the correct explanation of A.
2. B
   Both A and R are true and R is NOT the correct explanation of A.
3. C
   A is true but R is false.
4. D
   A is false but R is true.

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1. A
   A-II, B-III, C-IV, D-I
2. B
   A-II, B-III, C-I, D-IV
3. C
   A-III, B-II, C-I, D-IV
4. D
   A-III, B-II, C-IV, D-I

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1. A
   A-III, B-I, C-IV, D-II
2. B
   A-III, B-IV, C-II, D-I
3. C
   A-II, B-III, C-I, D-IV
4. D
   A-IV, B-II, C-I, D-III

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1. A
   Recombinant DNA Technology
2. B
   Serum and Urine analysis
3. C
   Polymerase Chain Reaction (PCR) technique
4. D
   Enzyme Linked Immuno-Sorbent Assay (ELISA) technique

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1. A
   A-III, B-I, C-IV, D-II
2. B
   A-IV, B-III, C-II, D-I
3. C
   A-I, B-IV, C-III, D-II
4. D
   A-II, B-I, C-III, D-IV

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1. A
   Tasmanian wolf, Bobcat, Marsupial mole
2. B
   Numbat, Spotted cuscus, Flying phalanger
3. C
   Mole, Flying squirrel, Tasmanian tiger cat
4. D
   Lemur, Anteater, Wolf

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1. A
   A-III, B-I, C-IV, D-II
2. B
   A-IV, B-III, C-II, D-I
3. C
   A-II, B-IV, C-I, D-III
4. D
   A-I, B-II, C-III, D-IV

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1. A
   A-II, B-I, C-IV, D-III
2. B
   A-I, B-II, C-III, D-IV
3. C
   A-IV, B-III, C-II, D-I
4. D
   A-III, B-IV, C-I, D-II

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1. A
   IRV + ERV
2. B
   IRV + ERV + TV + RV
3. C
   IRV + ERV + TV $-$ RV
4. D
   IRV + ERV + TV

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1. A
   Down's syndrome
2. B
   Turner's syndrome
3. C
   Klinefelter's syndrome
4. D
   Thalassemia

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1. A
   Genital herpes
2. B
   Gonorrhoea
3. C
   Hepatitis-B
4. D
   HIV Infection

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1. A
   Both Statement I and Statement II are true
2. B
   Both Statement I and Statement II are false
3. C
   Statement I is true but Statement II is false
4. D
   Statement I is false but Statement II is true

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1. A
   Both Statement I and Statement II are true.
2. B
   Both Statement I and Statement II are false.
3. C
   Statement I is true but Statement II is false.
4. D
   Statement I is false but Statement II is true.

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1. A
   A-I, B-II, C-III, D-IV
2. B
   A-I, B-II, C-IV, D-III
3. C
   A-III, B-IV, C-I, D-II
4. D
   A-II, B-III, C-I, D-IV

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1. A
   BAC
2. B
   YAC
3. C
   pBR322
4. D
   Probe

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1. A
   Square joined to circle by a plain horizontal line
2. B
   Square joined to circle by a double horizontal line
3. C
   Square joined to circle producing a filled square offspring
4. D
   Filled square, filled circle and filled diamond symbols

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1. A
   A and D only
2. B
   A and B only
3. C
   A, B and C only
4. D
   A, C and D only

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1. A
   A-IV, B-III, C-II, D-I
2. B
   A-III, B-II, C-IV, D-I
3. C
   A-II, B-IV, C-I, D-III
4. D
   A-IV, B-II, C-III, D-I

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1. A
   Both Statement I and Statement II are true.
2. B
   Both Statement I and Statement II are false.
3. C
   Statement I is correct but Statement II is false.
4. D
   Statement I is incorrect but Statement II is true.

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1. A
   B and D only
2. B
   A, C and E only
3. C
   A and D only
4. D
   A, D and E only

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1. A
   Eutrophication refers to increase in domestic sewage and waste water in lakes.
2. B
   Biomagnification refers to increase in concentration of the toxicant at successive trophic levels.
3. C
   Presence of large amount of nutrients in water restricts 'Algal Bloom'
4. D
   Algal Bloom decreases fish mortality

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1. A
   Both A and R are true and R is the correct explanation of A.
2. B
   Both A and R are true but R is NOT the correct explanation of A.
3. C
   A is true but R is false.
4. D
   A is false but R is true.

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1. A
   Both A and R are true and R is the correct explanation of A.
2. B
   Both A and R are true but R is NOT the correct explanation of A.
3. C
   A is true but R is false.
4. D
   A is false but R is true.

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