338197
Charles Darwin used which plant in the discovery of plant growth regulator?
1 Larkspur
2 Buttercup
3 Tobacco
4 Canary grass
Explanation:
The discovery of each of the five major groups of PGRs have been accidental. All this started with the observation of Charles Darwin and his son Francis Darwin when they observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism). After a series of experiments, it was concluded that the tip of coleoptile was the site of transmittable influence that caused the bending of the entire coleoptile. Auxin was isolated by F.W. Went from tips of coloptiles of oat seedlings.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338198
Who among the following conducted an experiment depicted by following diagram____
1 F. Skoog and his co-workers
2 E. Kurosawa
3 Cousins
4 Charles Darwin and his son Francis Darwin
Explanation:
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show the direction of light. This experiment was carried out by Charles Darwin and his son Francis Darwin.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338200
The avena curvature test is used for bioassay of
1 Abscisic acid
2 Gibberellic acid
3 Indole acetic acid
4 Ethylene
Explanation:
Avena curvature test is quantitative method used to correlate the degree of curvature obtained in a plant part by Auxins or IAA.
NEET - 2016
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338203
Who reported that the symptoms reappeared in uninfected plants treated with sterile filtrate of gibberella?
1 Charles Darwin
2 F. Skoog
3 F.W. Went
4 E. Kurosawa
Explanation:
E. Kurosawa (1926) reported the appearance of symptoms of the disease in rice seedlings when they were treated with sterile filtrates of the fungus. The active substances were later identified as gibberellic acid.
338197
Charles Darwin used which plant in the discovery of plant growth regulator?
1 Larkspur
2 Buttercup
3 Tobacco
4 Canary grass
Explanation:
The discovery of each of the five major groups of PGRs have been accidental. All this started with the observation of Charles Darwin and his son Francis Darwin when they observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism). After a series of experiments, it was concluded that the tip of coleoptile was the site of transmittable influence that caused the bending of the entire coleoptile. Auxin was isolated by F.W. Went from tips of coloptiles of oat seedlings.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338198
Who among the following conducted an experiment depicted by following diagram____
1 F. Skoog and his co-workers
2 E. Kurosawa
3 Cousins
4 Charles Darwin and his son Francis Darwin
Explanation:
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show the direction of light. This experiment was carried out by Charles Darwin and his son Francis Darwin.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338200
The avena curvature test is used for bioassay of
1 Abscisic acid
2 Gibberellic acid
3 Indole acetic acid
4 Ethylene
Explanation:
Avena curvature test is quantitative method used to correlate the degree of curvature obtained in a plant part by Auxins or IAA.
NEET - 2016
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338203
Who reported that the symptoms reappeared in uninfected plants treated with sterile filtrate of gibberella?
1 Charles Darwin
2 F. Skoog
3 F.W. Went
4 E. Kurosawa
Explanation:
E. Kurosawa (1926) reported the appearance of symptoms of the disease in rice seedlings when they were treated with sterile filtrates of the fungus. The active substances were later identified as gibberellic acid.
338197
Charles Darwin used which plant in the discovery of plant growth regulator?
1 Larkspur
2 Buttercup
3 Tobacco
4 Canary grass
Explanation:
The discovery of each of the five major groups of PGRs have been accidental. All this started with the observation of Charles Darwin and his son Francis Darwin when they observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism). After a series of experiments, it was concluded that the tip of coleoptile was the site of transmittable influence that caused the bending of the entire coleoptile. Auxin was isolated by F.W. Went from tips of coloptiles of oat seedlings.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338198
Who among the following conducted an experiment depicted by following diagram____
1 F. Skoog and his co-workers
2 E. Kurosawa
3 Cousins
4 Charles Darwin and his son Francis Darwin
Explanation:
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show the direction of light. This experiment was carried out by Charles Darwin and his son Francis Darwin.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338200
The avena curvature test is used for bioassay of
1 Abscisic acid
2 Gibberellic acid
3 Indole acetic acid
4 Ethylene
Explanation:
Avena curvature test is quantitative method used to correlate the degree of curvature obtained in a plant part by Auxins or IAA.
NEET - 2016
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338203
Who reported that the symptoms reappeared in uninfected plants treated with sterile filtrate of gibberella?
1 Charles Darwin
2 F. Skoog
3 F.W. Went
4 E. Kurosawa
Explanation:
E. Kurosawa (1926) reported the appearance of symptoms of the disease in rice seedlings when they were treated with sterile filtrates of the fungus. The active substances were later identified as gibberellic acid.
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BIOXI15: PLANT GROWTH AND DEVELOPMENT
338197
Charles Darwin used which plant in the discovery of plant growth regulator?
1 Larkspur
2 Buttercup
3 Tobacco
4 Canary grass
Explanation:
The discovery of each of the five major groups of PGRs have been accidental. All this started with the observation of Charles Darwin and his son Francis Darwin when they observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism). After a series of experiments, it was concluded that the tip of coleoptile was the site of transmittable influence that caused the bending of the entire coleoptile. Auxin was isolated by F.W. Went from tips of coloptiles of oat seedlings.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338198
Who among the following conducted an experiment depicted by following diagram____
1 F. Skoog and his co-workers
2 E. Kurosawa
3 Cousins
4 Charles Darwin and his son Francis Darwin
Explanation:
The given diagram gives an idea of experiment used to demonstrate that tip of the coleoptile is the source of auxin. In the given diagram arrows are used to show the direction of light. This experiment was carried out by Charles Darwin and his son Francis Darwin.
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338200
The avena curvature test is used for bioassay of
1 Abscisic acid
2 Gibberellic acid
3 Indole acetic acid
4 Ethylene
Explanation:
Avena curvature test is quantitative method used to correlate the degree of curvature obtained in a plant part by Auxins or IAA.
NEET - 2016
BIOXI15: PLANT GROWTH AND DEVELOPMENT
338203
Who reported that the symptoms reappeared in uninfected plants treated with sterile filtrate of gibberella?
1 Charles Darwin
2 F. Skoog
3 F.W. Went
4 E. Kurosawa
Explanation:
E. Kurosawa (1926) reported the appearance of symptoms of the disease in rice seedlings when they were treated with sterile filtrates of the fungus. The active substances were later identified as gibberellic acid.
