2, 4-D, widely used to kill dicotyledonous weeds, does not affect mature monocotyledonous plants. It is used to prepare weed-free lawns by gardeners.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337873
Assertion : Auxins help to prevent fruit and leaf drop at early stages. Reason : Auxins promote the abscission of older mature leaves and fruits.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Auxin delays abscission of young leaves and fruits. Its effect is through nonformation of abscission zone below a leaf or fruit. Abscission zone cuts off nutrients and water supply. However, auxin promotes the abscission of mature or older leaves and fruits.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337874
Statement A : Auxins also induce parthenocarpy,e.g.,in tomatoes. Statement B : Auxins are widely used as herbicides. 2, 4-D, widely used to kill moncotyledonous weeds.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Auxins are widely used as herbicides. 2, 4-D, widely used to kill dicotyledonous weeds.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337875
One of the synthetic auxin is
1 IAA
2 GA
3 IBA
4 NAA
Explanation:
NAA is synthetic auxin which have similar properties of natural auxin produced naturally in plants.
AIPMT - 2009
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337876
The Plant (a) represents_
1 A plant with apical bud intact
2 A plant with apical bud removed
3 A plant with axial bud removed
4 A plant with dominant axial buds
Explanation:
In the given diagram showing apical dominance in plants : (a) represents a plant with apical bud intact and (b) represents a plant with apical bud removed.
2, 4-D, widely used to kill dicotyledonous weeds, does not affect mature monocotyledonous plants. It is used to prepare weed-free lawns by gardeners.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337873
Assertion : Auxins help to prevent fruit and leaf drop at early stages. Reason : Auxins promote the abscission of older mature leaves and fruits.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Auxin delays abscission of young leaves and fruits. Its effect is through nonformation of abscission zone below a leaf or fruit. Abscission zone cuts off nutrients and water supply. However, auxin promotes the abscission of mature or older leaves and fruits.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337874
Statement A : Auxins also induce parthenocarpy,e.g.,in tomatoes. Statement B : Auxins are widely used as herbicides. 2, 4-D, widely used to kill moncotyledonous weeds.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Auxins are widely used as herbicides. 2, 4-D, widely used to kill dicotyledonous weeds.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337875
One of the synthetic auxin is
1 IAA
2 GA
3 IBA
4 NAA
Explanation:
NAA is synthetic auxin which have similar properties of natural auxin produced naturally in plants.
AIPMT - 2009
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337876
The Plant (a) represents_
1 A plant with apical bud intact
2 A plant with apical bud removed
3 A plant with axial bud removed
4 A plant with dominant axial buds
Explanation:
In the given diagram showing apical dominance in plants : (a) represents a plant with apical bud intact and (b) represents a plant with apical bud removed.
2, 4-D, widely used to kill dicotyledonous weeds, does not affect mature monocotyledonous plants. It is used to prepare weed-free lawns by gardeners.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337873
Assertion : Auxins help to prevent fruit and leaf drop at early stages. Reason : Auxins promote the abscission of older mature leaves and fruits.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Auxin delays abscission of young leaves and fruits. Its effect is through nonformation of abscission zone below a leaf or fruit. Abscission zone cuts off nutrients and water supply. However, auxin promotes the abscission of mature or older leaves and fruits.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337874
Statement A : Auxins also induce parthenocarpy,e.g.,in tomatoes. Statement B : Auxins are widely used as herbicides. 2, 4-D, widely used to kill moncotyledonous weeds.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Auxins are widely used as herbicides. 2, 4-D, widely used to kill dicotyledonous weeds.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337875
One of the synthetic auxin is
1 IAA
2 GA
3 IBA
4 NAA
Explanation:
NAA is synthetic auxin which have similar properties of natural auxin produced naturally in plants.
AIPMT - 2009
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337876
The Plant (a) represents_
1 A plant with apical bud intact
2 A plant with apical bud removed
3 A plant with axial bud removed
4 A plant with dominant axial buds
Explanation:
In the given diagram showing apical dominance in plants : (a) represents a plant with apical bud intact and (b) represents a plant with apical bud removed.
2, 4-D, widely used to kill dicotyledonous weeds, does not affect mature monocotyledonous plants. It is used to prepare weed-free lawns by gardeners.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337873
Assertion : Auxins help to prevent fruit and leaf drop at early stages. Reason : Auxins promote the abscission of older mature leaves and fruits.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Auxin delays abscission of young leaves and fruits. Its effect is through nonformation of abscission zone below a leaf or fruit. Abscission zone cuts off nutrients and water supply. However, auxin promotes the abscission of mature or older leaves and fruits.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337874
Statement A : Auxins also induce parthenocarpy,e.g.,in tomatoes. Statement B : Auxins are widely used as herbicides. 2, 4-D, widely used to kill moncotyledonous weeds.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Auxins are widely used as herbicides. 2, 4-D, widely used to kill dicotyledonous weeds.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337875
One of the synthetic auxin is
1 IAA
2 GA
3 IBA
4 NAA
Explanation:
NAA is synthetic auxin which have similar properties of natural auxin produced naturally in plants.
AIPMT - 2009
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337876
The Plant (a) represents_
1 A plant with apical bud intact
2 A plant with apical bud removed
3 A plant with axial bud removed
4 A plant with dominant axial buds
Explanation:
In the given diagram showing apical dominance in plants : (a) represents a plant with apical bud intact and (b) represents a plant with apical bud removed.
2, 4-D, widely used to kill dicotyledonous weeds, does not affect mature monocotyledonous plants. It is used to prepare weed-free lawns by gardeners.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337873
Assertion : Auxins help to prevent fruit and leaf drop at early stages. Reason : Auxins promote the abscission of older mature leaves and fruits.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect.
Explanation:
Auxin delays abscission of young leaves and fruits. Its effect is through nonformation of abscission zone below a leaf or fruit. Abscission zone cuts off nutrients and water supply. However, auxin promotes the abscission of mature or older leaves and fruits.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337874
Statement A : Auxins also induce parthenocarpy,e.g.,in tomatoes. Statement B : Auxins are widely used as herbicides. 2, 4-D, widely used to kill moncotyledonous weeds.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Auxins are widely used as herbicides. 2, 4-D, widely used to kill dicotyledonous weeds.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337875
One of the synthetic auxin is
1 IAA
2 GA
3 IBA
4 NAA
Explanation:
NAA is synthetic auxin which have similar properties of natural auxin produced naturally in plants.
AIPMT - 2009
BIOXI15: PLANT GROWTH AND DEVELOPMENT
337876
The Plant (a) represents_
1 A plant with apical bud intact
2 A plant with apical bud removed
3 A plant with axial bud removed
4 A plant with dominant axial buds
Explanation:
In the given diagram showing apical dominance in plants : (a) represents a plant with apical bud intact and (b) represents a plant with apical bud removed.
