1. A
   Adaptive radiation
2. B
   Natural selection
3. C
   Convergent evolution
4. D
   Divergent evolution

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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
   $5^{th}$ segment
2. B
   $10^{th}$ segment
3. C
   $8^{th}$ and $9^{th}$ segment
4. D
   $11^{th}$ segment

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1. A
   High pO$_2$ and High pCO$_2$
2. B
   High pO$_2$ and Lesser H$^+$ concentration
3. C
   Low pCO$_2$ and High H$^+$ concentration
4. D
   Low pCO$_2$ and High temperature

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1. A
   The gene 'X' is responsible for resistance to antibiotics and 'Y' for protein involved in the replication of Plasmid.
2. B
   The gene 'X' is responsible for controlling the copy number of the linked DNA and 'Y' for protein involved in the replication of Plasmid.
3. C
   The gene 'X' is for protein involved in replication of Plasmid and 'Y' for resistance to antibiotics.
4. D
   Gene 'X' is responsible for recognitions sites and 'Y' is responsible for antibiotic resistance.

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

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

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

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

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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 & C only
2. B
   A, B & D only
3. C
   B, D & E only
4. D
   B, C & D only

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

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

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

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1. A
   Juxta medullary nephrons are located in the columns of Bertini.
2. B
   Renal corpuscle of juxta medullary nephron lies in the outer portion of the renal medulla.
3. C
   Loop of Henle of juxta medullary nephron runs deep into medulla.
4. D
   Juxta medullary nephrons outnumber the cortical nephrons.

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

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

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

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

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1. A
   A-I, B-III, C-IV, D-II
2. B
   A-III, B-II, C-IV, 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
   Both Statement I and Statement II are correct.
2. B
   Both Statement I and Statement II are incorrect.
3. C
   Statement I is correct but Statement II is incorrect.
4. D
   Statement I is incorrect but Statement II is correct.

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1. A
   FSH, Leydig cells, Sertoli cells, spermiogenesis.
2. B
   ICSH, Interstitial cells, Leydig cells, spermiogenesis.
3. C
   FSH, Sertoli cells, Leydig cells, spermatogenesis.
4. D
   ICSH, Leydig cells, Sertoli cells, spermatogenesis.

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1. A
   A only
2. B
   B only
3. C
   C & B only
4. D
   D & E only

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

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1. A
   $669^\circ C$
2. B
   $3295^\circ C$
3. C
   $3097\,K$
4. D
   $223\,K$

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