1. A
   acetyl choline
2. B
   acetyl coenzyme A
3. C
   cyclic guanine monophosphate
4. D
   cyclic adenine monophosphate

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1. A
   Gene i is constitutively expressed
2. B
   Lactose activates repressor to bind to the operator
3. C
   Genes i, z, y and a share single common promoter
4. D
   Galactose can act as an inducer of lac operon

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1. A
   Antipodals
2. B
   Synergids
3. C
   Central cells
4. D
   Polar nucleus

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1. A
   Wheat
2. B
   Maize
3. C
   Barley
4. D
   Pea

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1. A
   18
2. B
   36
3. C
   54
4. D
   72

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1. A
   (a) and (b) only
2. B
   (b), (c) and (d) only
3. C
   (a), (b) and (c) only
4. D
   (a), (b) and (d) only

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1. A
   Cervical vertebra, thoracic vertebra, sacrum, lumbar vertebra
2. B
   Sacrum, lumbar vertebra, thoracic vertebra, cervical vertebra
3. C
   Cervical vertebra, lumbar vertebra, thoracic vertebra, sacrum
4. D
   Cervical vertebra, thoracic vertebra, lumbar vertebra, sacrum

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1. A
   Convergent evolution of traits like wings of birds and butterflies
2. B
   Paleontological evidence from fossil records
3. C
   Embryological support for evolution as proposed by Ernst Heckel
4. D
   Divergent evolution of anatomical structures such as forelimbs

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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
   1 million
2. B
   5 million
3. C
   10 million
4. D
   100 million

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1. A
   denaturation
2. B
   extension
3. C
   annealing
4. D
   ligation

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

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1. A
   divergent evolution
2. B
   convergent evolution
3. C
   founder effect
4. D
   genetic drift

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1. A
   (a) and (b) only
2. B
   (b) and (c) only
3. C
   (b) and (d) only
4. D
   (a) and (d) only

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1. A
   hCG
2. B
   Estrogen
3. C
   Progesterone
4. D
   LH

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1. A
   RNA polymerase I
2. B
   RNA polymerase II
3. C
   RNA polymerase III
4. D
   DNA polymerase

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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
   Father: $I^A i$ and Mother : $I^B i$
2. B
   Father: $I^A i$ and Mother : $I^A i$
3. C
   Father: $I^B i$ and Mother : $I^B i$
4. D
   Father: $I^A I^B$ and Mother: $I^A i$

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1. A
   Both A and R are correct 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
   IgG
2. B
   IgM
3. C
   IgA
4. D
   IgD

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

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1. A
   endometrium
2. B
   zona radiata
3. C
   zona pellucida
4. D
   chorion

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

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

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

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