Who discovered cytokinins? -Biology

Who discovered cytokinins? -Biology
by

1 Answer

Answer :

answer:
by

Related questions

Commercial applications of cytokinins -Biology

Description : Commercial applications of cytokinins -Biology

Last Answer : answer:

Which of the following statements are true? 1. Cytokinins promote stomatal opening 2. Sprays of indole -3 acetic acid can inhibit premature fruit fall 3. The growth movements caused by a unilateral stimulus are known as nastic movements 4. The seeds of desert plants will not germinate unless they have been subjected to a high temperature for some time Questions Select the correct answer from the following: (a) 1, 2, and 4 (b) 2 and 4 (c) 1, 2, and 4 (d) 1, 2, 3, and 4

Description : Which of the following statements are true? 1. Cytokinins promote stomatal opening 2. Sprays of indole -3 acetic acid can inhibit premature fruit fall 3. The growth movements caused by a unilateral stimulus are known as nastic movements 4. The ... 4 (b) 2 and 4 (c) 1, 2, and 4 (d) 1, 2, 3, and 4

Last Answer : Ans:(a)

Many _________ in super optimal concentrations also act as growth inhibitors : a. Auxins b. Gibberellins c. Cytokinins d. All of above

Description : Many _________ in super optimal concentrations also act as growth inhibitors : a. Auxins b. Gibberellins c. Cytokinins d. All of above

Last Answer : Auxins

Plants, protein, RNA, DNA contents are increased by a. Auxins b. Adenine c. Cytokinins d. None of above

Description : Plants, protein, RNA, DNA contents are increased by a. Auxins b. Adenine c. Cytokinins d. None of above

Last Answer : Cytokinins

Hormones which control apical dominance are: a. Auxins b. Cytokinins c. Gibberellins d. Polyamines

Description : Hormones which control apical dominance are: a. Auxins b. Cytokinins c. Gibberellins d. Polyamines

Last Answer : Cytokinins

Callus is induced to form roots in the medium of (a) Auxin (b) Cytokinins only (c) Morecytokinins than auxin (d) Moreauxin than cytokinins

Description : Callus is induced to form roots in the medium of (a) Auxin (b) Cytokinins only (c) Morecytokinins than auxin (d) Moreauxin than cytokinins

Last Answer : (d) Moreauxin than cytokinins

Cut or excised leaves remain green for long if induced to root or dipped in (a) gibberellins (b) cytokinins (c) auxins (d) ethylene.

Description : Cut or excised leaves remain green for long if induced to root or dipped in (a) gibberellins (b) cytokinins (c) auxins (d) ethylene.

Last Answer : (b) cytokinins

Leaf fall can be prevented with the help of (a) abscisic acid (b) auxins (c) florigen (d) cytokinins.

Description : Leaf fall can be prevented with the help of (a) abscisic acid (b) auxins (c) florigen (d) cytokinins.

Last Answer : (d) cytokinins.

Phototropic and geotropic movements are linked to (a) gibberellins (b) enzymes (c) auxin (d) cytokinins.

Description : Phototropic and geotropic movements are linked to (a) gibberellins (b) enzymes (c) auxin (d) cytokinins.

Last Answer : (c) auxin

Cytokinins (a) promote abscission (b) influence water movement (c) help retain chlorophyll (d) inhibit protoplasmic streaming.

Description : Cytokinins (a) promote abscission (b) influence water movement (c) help retain chlorophyll (d) inhibit protoplasmic streaming.

Last Answer : (c) help retain chlorophyll

A plant hormone used for inducing morphogenesis in plant tissue culture is (a) cytokinins (b) ethylene (c) abscisic acid (d) gibberellins.

Description : A plant hormone used for inducing morphogenesis in plant tissue culture is (a) cytokinins (b) ethylene (c) abscisic acid (d) gibberellins.

Last Answer : (a) cytokinins

Cell elongation in internodal regions of the green plants takes place due to (a) indole acetic acid (b) cytokinins (c) gibberellins (d) ethylene

Description : Cell elongation in internodal regions of the green plants takes place due to (a) indole acetic acid (b) cytokinins (c) gibberellins (d) ethylene

Last Answer : (c) gibberellins

Phototropic curvature is the result of uneven distribution of (a) gibberellin (b) phytochrome (c) cytokinins (d) auxin.

Description : Phototropic curvature is the result of uneven distribution of (a) gibberellin (b) phytochrome (c) cytokinins (d) auxin.

Last Answer : (d) auxin.

Fruit and leaf drop at early stages can be prevented by the application of (a) ethylene (b) auxins (c) gibberellic acid (d) cytokinins.

Description : Fruit and leaf drop at early stages can be prevented by the application of (a) ethylene (b) auxins (c) gibberellic acid (d) cytokinins.

Last Answer : (b) auxins

Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield? (a) Application of iron and magnesium to promote synthesis of chlorophyll (b) Frequent irrigation of the crop (c) Treatment of the plants with cytokinins along with a small dose of nitrogenous fertilizer (d) Removal of all yellow leaves and spraying the remaining green leaves with 2, 4, 5-trichlorophenoxy acetic acid

Description : Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum ... yellow leaves and spraying the remaining green leaves with 2, 4, 5-trichlorophenoxy acetic acid

Last Answer : (a) Application of iron and magnesium to promote synthesis of chlorophyll

Fruit and leaf drop at early stages can be prevented by the application of: (1) Ethylene (2) Auxins (3) Gibberellic acid (4) Cytokinins

Description : Fruit and leaf drop at early stages can be prevented by the application of: (1) Ethylene (2) Auxins (3) Gibberellic acid (4) Cytokinins

Last Answer : (2) Auxins

Which of the following plant hormones are incorrectly paired? (1) abscisic acid- transpiration (2) auxins-apical dominance (3) cytokinins- senescence (4) gibberlins- bud and seed dormancy

Description : Which of the following plant hormones are incorrectly paired? (1) abscisic acid- transpiration (2) auxins-apical dominance (3) cytokinins- senescence (4) gibberlins- bud and seed dormancy

Last Answer : gibberlins- bud and seed dormancy