166964
Which of the following is wrong about ethylene
1 Inhibit growth of root
2 Ripening of fruits
3 Elongation of stem in paddy
4 Promote senescence of leaves and flowers
Explanation:
A Ethylene promotes senescence and abscission of plant organs, especially of leaves and flowers. - It stimulates fruit ripening. - It enhances the respiration rate during the ripening of the fruits. - Ethylene is a phytohormone that regulates both growth and senescence. - Ethylene promotes the elongation of the stem in paddy. - Ethylene increases the speed of leaf and flower senescence. - Ethylene inhibits lateral buds and causes apical dominance.
[AIIMS-26.05.2018 Shift-II]
Plant growth and development
166965
Pollen grains can be stored for several years in liquid nitrogen having a temperature of
1 $-120^{\circ} \mathrm{C}$
2 $-80^{\circ} \mathrm{C}$
3 $-160^{\circ} \mathrm{C}$
4 $-196^{\circ} \mathrm{C}$
Explanation:
D Pollen grains are stored in liquid nitrogen and the temperature of liquid nitrogen is $-196^{\circ} \mathrm{C}$. - The pollen grain stored for several years, and later used in plant breeding techniques. - Cryopreservation is the process of presenting and storing cells, tissue, organ or any outer biological material from any potential damage by maintaining the material at very low temperature. Nitrogen maintain the energy efficiency and providing an environmental friendly approach.
[NEET-2018]
Plant growth and development
166986
Auxin was first named by
1 C Darwin
2 FW Went
3 Alexopoulos
4 KV Thimann
Explanation:
B Auxin was first named by F.W. Went. - Auxin is a plant hormone produced in the stem tip that promotes cell elongation it moves to the darker side of the plant. - Auxin diffused out from the tip of oat coleoptiles in the gelatin block.
[MGIMS Wardha-2013]
Plant growth and development
166990
Hormone used in tissue culture for better growth is : (1) auxin (2) gibberellin (3) cytokinin (4) vernalin
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
D Hormone used in tissue culture for better growth is auxin and cytokinin. The phytohormone auxin and cytokinin are critical for plant regeneration in tissue culture, with cytokinin playing an instrumental role in shoot organogenesis. Oksin - sitokinin etkilesimine bapli olarak hucrelerin farkllasmasi Differentiation of eells due to auxin-cytokinin interaction
[BHU PMT (Mains)-2005]
Plant growth and development
167002
Which of the following statement is correct ?
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
D Gibberellin is responsible for the foolish seedling disease of rice. - Abscisic acid is a growth inhibiting hormone. It inhibits or suppresses the growth of plants. - If cytokinins and auxin are present in equal amount, the cell divide but fail to differentiate. Thus they control cell differentiation. - Cabbage bolting can be induced by gibberellins.
166964
Which of the following is wrong about ethylene
1 Inhibit growth of root
2 Ripening of fruits
3 Elongation of stem in paddy
4 Promote senescence of leaves and flowers
Explanation:
A Ethylene promotes senescence and abscission of plant organs, especially of leaves and flowers. - It stimulates fruit ripening. - It enhances the respiration rate during the ripening of the fruits. - Ethylene is a phytohormone that regulates both growth and senescence. - Ethylene promotes the elongation of the stem in paddy. - Ethylene increases the speed of leaf and flower senescence. - Ethylene inhibits lateral buds and causes apical dominance.
[AIIMS-26.05.2018 Shift-II]
Plant growth and development
166965
Pollen grains can be stored for several years in liquid nitrogen having a temperature of
1 $-120^{\circ} \mathrm{C}$
2 $-80^{\circ} \mathrm{C}$
3 $-160^{\circ} \mathrm{C}$
4 $-196^{\circ} \mathrm{C}$
Explanation:
D Pollen grains are stored in liquid nitrogen and the temperature of liquid nitrogen is $-196^{\circ} \mathrm{C}$. - The pollen grain stored for several years, and later used in plant breeding techniques. - Cryopreservation is the process of presenting and storing cells, tissue, organ or any outer biological material from any potential damage by maintaining the material at very low temperature. Nitrogen maintain the energy efficiency and providing an environmental friendly approach.
[NEET-2018]
Plant growth and development
166986
Auxin was first named by
1 C Darwin
2 FW Went
3 Alexopoulos
4 KV Thimann
Explanation:
B Auxin was first named by F.W. Went. - Auxin is a plant hormone produced in the stem tip that promotes cell elongation it moves to the darker side of the plant. - Auxin diffused out from the tip of oat coleoptiles in the gelatin block.
[MGIMS Wardha-2013]
Plant growth and development
166990
Hormone used in tissue culture for better growth is : (1) auxin (2) gibberellin (3) cytokinin (4) vernalin
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
D Hormone used in tissue culture for better growth is auxin and cytokinin. The phytohormone auxin and cytokinin are critical for plant regeneration in tissue culture, with cytokinin playing an instrumental role in shoot organogenesis. Oksin - sitokinin etkilesimine bapli olarak hucrelerin farkllasmasi Differentiation of eells due to auxin-cytokinin interaction
[BHU PMT (Mains)-2005]
Plant growth and development
167002
Which of the following statement is correct ?
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
D Gibberellin is responsible for the foolish seedling disease of rice. - Abscisic acid is a growth inhibiting hormone. It inhibits or suppresses the growth of plants. - If cytokinins and auxin are present in equal amount, the cell divide but fail to differentiate. Thus they control cell differentiation. - Cabbage bolting can be induced by gibberellins.
166964
Which of the following is wrong about ethylene
1 Inhibit growth of root
2 Ripening of fruits
3 Elongation of stem in paddy
4 Promote senescence of leaves and flowers
Explanation:
A Ethylene promotes senescence and abscission of plant organs, especially of leaves and flowers. - It stimulates fruit ripening. - It enhances the respiration rate during the ripening of the fruits. - Ethylene is a phytohormone that regulates both growth and senescence. - Ethylene promotes the elongation of the stem in paddy. - Ethylene increases the speed of leaf and flower senescence. - Ethylene inhibits lateral buds and causes apical dominance.
[AIIMS-26.05.2018 Shift-II]
Plant growth and development
166965
Pollen grains can be stored for several years in liquid nitrogen having a temperature of
1 $-120^{\circ} \mathrm{C}$
2 $-80^{\circ} \mathrm{C}$
3 $-160^{\circ} \mathrm{C}$
4 $-196^{\circ} \mathrm{C}$
Explanation:
D Pollen grains are stored in liquid nitrogen and the temperature of liquid nitrogen is $-196^{\circ} \mathrm{C}$. - The pollen grain stored for several years, and later used in plant breeding techniques. - Cryopreservation is the process of presenting and storing cells, tissue, organ or any outer biological material from any potential damage by maintaining the material at very low temperature. Nitrogen maintain the energy efficiency and providing an environmental friendly approach.
[NEET-2018]
Plant growth and development
166986
Auxin was first named by
1 C Darwin
2 FW Went
3 Alexopoulos
4 KV Thimann
Explanation:
B Auxin was first named by F.W. Went. - Auxin is a plant hormone produced in the stem tip that promotes cell elongation it moves to the darker side of the plant. - Auxin diffused out from the tip of oat coleoptiles in the gelatin block.
[MGIMS Wardha-2013]
Plant growth and development
166990
Hormone used in tissue culture for better growth is : (1) auxin (2) gibberellin (3) cytokinin (4) vernalin
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
D Hormone used in tissue culture for better growth is auxin and cytokinin. The phytohormone auxin and cytokinin are critical for plant regeneration in tissue culture, with cytokinin playing an instrumental role in shoot organogenesis. Oksin - sitokinin etkilesimine bapli olarak hucrelerin farkllasmasi Differentiation of eells due to auxin-cytokinin interaction
[BHU PMT (Mains)-2005]
Plant growth and development
167002
Which of the following statement is correct ?
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
D Gibberellin is responsible for the foolish seedling disease of rice. - Abscisic acid is a growth inhibiting hormone. It inhibits or suppresses the growth of plants. - If cytokinins and auxin are present in equal amount, the cell divide but fail to differentiate. Thus they control cell differentiation. - Cabbage bolting can be induced by gibberellins.
166964
Which of the following is wrong about ethylene
1 Inhibit growth of root
2 Ripening of fruits
3 Elongation of stem in paddy
4 Promote senescence of leaves and flowers
Explanation:
A Ethylene promotes senescence and abscission of plant organs, especially of leaves and flowers. - It stimulates fruit ripening. - It enhances the respiration rate during the ripening of the fruits. - Ethylene is a phytohormone that regulates both growth and senescence. - Ethylene promotes the elongation of the stem in paddy. - Ethylene increases the speed of leaf and flower senescence. - Ethylene inhibits lateral buds and causes apical dominance.
[AIIMS-26.05.2018 Shift-II]
Plant growth and development
166965
Pollen grains can be stored for several years in liquid nitrogen having a temperature of
1 $-120^{\circ} \mathrm{C}$
2 $-80^{\circ} \mathrm{C}$
3 $-160^{\circ} \mathrm{C}$
4 $-196^{\circ} \mathrm{C}$
Explanation:
D Pollen grains are stored in liquid nitrogen and the temperature of liquid nitrogen is $-196^{\circ} \mathrm{C}$. - The pollen grain stored for several years, and later used in plant breeding techniques. - Cryopreservation is the process of presenting and storing cells, tissue, organ or any outer biological material from any potential damage by maintaining the material at very low temperature. Nitrogen maintain the energy efficiency and providing an environmental friendly approach.
[NEET-2018]
Plant growth and development
166986
Auxin was first named by
1 C Darwin
2 FW Went
3 Alexopoulos
4 KV Thimann
Explanation:
B Auxin was first named by F.W. Went. - Auxin is a plant hormone produced in the stem tip that promotes cell elongation it moves to the darker side of the plant. - Auxin diffused out from the tip of oat coleoptiles in the gelatin block.
[MGIMS Wardha-2013]
Plant growth and development
166990
Hormone used in tissue culture for better growth is : (1) auxin (2) gibberellin (3) cytokinin (4) vernalin
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
D Hormone used in tissue culture for better growth is auxin and cytokinin. The phytohormone auxin and cytokinin are critical for plant regeneration in tissue culture, with cytokinin playing an instrumental role in shoot organogenesis. Oksin - sitokinin etkilesimine bapli olarak hucrelerin farkllasmasi Differentiation of eells due to auxin-cytokinin interaction
[BHU PMT (Mains)-2005]
Plant growth and development
167002
Which of the following statement is correct ?
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
D Gibberellin is responsible for the foolish seedling disease of rice. - Abscisic acid is a growth inhibiting hormone. It inhibits or suppresses the growth of plants. - If cytokinins and auxin are present in equal amount, the cell divide but fail to differentiate. Thus they control cell differentiation. - Cabbage bolting can be induced by gibberellins.
166964
Which of the following is wrong about ethylene
1 Inhibit growth of root
2 Ripening of fruits
3 Elongation of stem in paddy
4 Promote senescence of leaves and flowers
Explanation:
A Ethylene promotes senescence and abscission of plant organs, especially of leaves and flowers. - It stimulates fruit ripening. - It enhances the respiration rate during the ripening of the fruits. - Ethylene is a phytohormone that regulates both growth and senescence. - Ethylene promotes the elongation of the stem in paddy. - Ethylene increases the speed of leaf and flower senescence. - Ethylene inhibits lateral buds and causes apical dominance.
[AIIMS-26.05.2018 Shift-II]
Plant growth and development
166965
Pollen grains can be stored for several years in liquid nitrogen having a temperature of
1 $-120^{\circ} \mathrm{C}$
2 $-80^{\circ} \mathrm{C}$
3 $-160^{\circ} \mathrm{C}$
4 $-196^{\circ} \mathrm{C}$
Explanation:
D Pollen grains are stored in liquid nitrogen and the temperature of liquid nitrogen is $-196^{\circ} \mathrm{C}$. - The pollen grain stored for several years, and later used in plant breeding techniques. - Cryopreservation is the process of presenting and storing cells, tissue, organ or any outer biological material from any potential damage by maintaining the material at very low temperature. Nitrogen maintain the energy efficiency and providing an environmental friendly approach.
[NEET-2018]
Plant growth and development
166986
Auxin was first named by
1 C Darwin
2 FW Went
3 Alexopoulos
4 KV Thimann
Explanation:
B Auxin was first named by F.W. Went. - Auxin is a plant hormone produced in the stem tip that promotes cell elongation it moves to the darker side of the plant. - Auxin diffused out from the tip of oat coleoptiles in the gelatin block.
[MGIMS Wardha-2013]
Plant growth and development
166990
Hormone used in tissue culture for better growth is : (1) auxin (2) gibberellin (3) cytokinin (4) vernalin
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
D Hormone used in tissue culture for better growth is auxin and cytokinin. The phytohormone auxin and cytokinin are critical for plant regeneration in tissue culture, with cytokinin playing an instrumental role in shoot organogenesis. Oksin - sitokinin etkilesimine bapli olarak hucrelerin farkllasmasi Differentiation of eells due to auxin-cytokinin interaction
[BHU PMT (Mains)-2005]
Plant growth and development
167002
Which of the following statement is correct ?
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
D Gibberellin is responsible for the foolish seedling disease of rice. - Abscisic acid is a growth inhibiting hormone. It inhibits or suppresses the growth of plants. - If cytokinins and auxin are present in equal amount, the cell divide but fail to differentiate. Thus they control cell differentiation. - Cabbage bolting can be induced by gibberellins.
