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1:   A.B.A. acts antagonistic to
Options:
  1. ethylene
  2. cytokinin
  3. gibberellic acid
  4. I.A.A.
Answer and Explanation

Answer: Option 3

Explanation:

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2:   Monocarpic plants are those which
Options:
  1. bear flowers with one ovary
  2. flower once and die
  3. bear only one flower
  4. all the above
Answer and Explanation

Answer: Option 1

Explanation:

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3:   To increase sugar production in sugar canes. they are sprayed with
Options:
  1. I.A.A.
  2. cytokinin
  3. gibberellin
  4. none of these
Answer and Explanation

Answer: Option 3

Explanation:

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4:   Growth can be measured in various ways. Which of these can be used as parameters to measure growth
Options:
  1. increase in cell number
  2. increase in cell size
  3. increase in length and weight
  4. all the above
Answer and Explanation

Answer: Option 4

Explanation:

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5:   the term synergistic action of hormone refers to
Options:
  1. when two hormones act together but bring about opposite effects
  2. when two hormones act together and contribute to the same function
  3. when one hormone affects more than one function
  4. none of these
Answer and Explanation

Answer: Option 2

Explanation:

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6:   The photoperiod in plants is perceived at
Options:
  1. meristem
  2. flower
  3. floral buds
  4. leaves
Answer and Explanation

Answer: Option 4

Explanation:

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7:   Plasticity in plant growth means that
Options:
  1. plant roots are extensible
  2. plant growth is dependent on the environment
  3. stems can extend
  4. none of these
Answer and Explanation

Answer: Option 2

Explanation:

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8:   Apples are generally wrapped in waxed paper to
Options:
  1. prevent sunlight for changing its colour
  2. prevent aerobic respiration by checking the entry of O2
  3. make the apples look attractive
  4. none of these
Answer and Explanation

Answer: Option 2

Explanation:

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9:   Coconut milk contains
Options:
  1. ABA
  2. auxin
  3. cytokinin
  4. gibberellin
Answer and Explanation

Answer: Option 1

Explanation:

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10:   The affect of apical dominance can be overcome by which of the following hormone
Options:
  1. IAA
  2. gibberellin
  3. ethylene
  4. cytokinin
Answer and Explanation

Answer: Option 1

Explanation:

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