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
Description : Many _________ in super optimal concentrations also act as growth inhibitors : a. Auxins b. Gibberellins c. Cytokinins d. All of above
Last Answer : Auxins
Description : Hormones which control apical dominance are: a. Auxins b. Cytokinins c. Gibberellins d. Polyamines
Last Answer : Cytokinins
Description : Which of the following control the root initiation, cell elongation and apical dominance? (A)Auxins (B) ABA (C) Gibberellins (D) Ethylene
Last Answer : (D) Ethylene
Last Answer : (B) ABA
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
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
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
Description : The following is not a plant growth regulator a) Acetic acid b) Auxins c) Gibberellins d) Ethylene
Last Answer : a) Acetic acid
Description : Phototropic and geotropic movements are linked to (a) gibberellins (b) enzymes (c) auxin (d) cytokinins.
Last Answer : (c) auxin
Description : Plants, protein, RNA, DNA contents are increased by a. Auxins b. Adenine c. Cytokinins d. None of above
Description : Leaf fall can be prevented with the help of (a) abscisic acid (b) auxins (c) florigen (d) cytokinins.
Last Answer : (d) cytokinins.
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
Description : Difference between auxins and gibberellins? -Biology
Last Answer : answer:
Description : Leaf senescence can be retarded by the application of : a. Auxins b. Gibberellins c. Kinins d. Abscicic acid
Last Answer : Kinins
Description : ________ can release lateral buds from apical dominance : a. Auxins b. Gibberellins c. Kinins d. None of above
Description : ________ have ability to alter the sex of the flowers: a. Auxins b. Gibberellins c. Kinins d. None of above
Last Answer : Gibberellins
Description : Direction of plant growth is controlled by: a. Auxins b. Gibberellins c. Kinins d. All of above
Description : Compounds possessing hormone like properties which have small molecular weight, are termed as : a. Auxins b. Gibberellins c. Kinins d. None of these
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
Description : A plant hormone, which is primary regulator of abscission process is (a) Ethylene (b) Auxin (c) ABA (d) Gibberellins
Last Answer : (c) ABA
Description : Which of the following hormones can replace vernalisation? (a) Auxin (b) Cytokinin (c) Gibberellins (d) Ethylene
Last Answer : (c) Gibberellins
Description : Which one of the following generally acts as an antagonist to gibberellins? (a) Zeatin (b) Ethylene (c) ABA (d) IAA
Description : Hormone pair required for a callus to differentiate is a. auxin and cytokinin b. auxin and ethylene c. auxin and abscisic acid d. cytokinin and gibberellins
Last Answer : a. auxin and cytokinin
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
Description : Rootex contains a) Auxins b) ABA c) Kinetin d) Ethylene
Last Answer : a) Auxins
Description : The plant or plant part excised for the in vitro cultivation
Last Answer : Ans. Explant
Description : Accumulation of crystalline depositions in articular surfaces, bones, soft tissue, and cartilage is referred to as a) tophi. Tophi, when problematic, are surgically excised. b) subchondral bone. Subchondral ... refers to the escape of fluid from the blood vessels or lymphatics into the joint cavity.
Last Answer : a) tophi. Tophi, when problematic, are surgically excised.
Description : Gibberellins promote (a) seed germination (b) seed dormancy (c) leaf fall (d) root elongation.
Last Answer : (c) leaf fall
Description : Small cut pieces of soft stems are placed in growth medium with following plant hormones. Which combination of plant hormones will show slowest growth ? (1) Auxin + Cytokinin (2) Gibberellins + Auxin (3) Gibberellins + Cytokinin (4) Abscisic Acid + Auxin
Last Answer : (4) Abscisic Acid + Auxin
Description : Who discovered cytokinins? -Biology
Description : Commercial applications of cytokinins -Biology
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)
Description : Cytokinins (a) promote abscission (b) influence water movement (c) help retain chlorophyll (d) inhibit protoplasmic streaming.
Last Answer : (c) help retain chlorophyll
Description : Phototropic curvature is the result of uneven distribution of (a) gibberellin (b) phytochrome (c) cytokinins (d) auxin.
Last Answer : (d) auxin.
Description : Why does the skin of the hand wrinkle if it is dipped in water for a long time ?
Last Answer : If you take a bath or work with water for a long time, you must have noticed that the skin of the fingertips has wrinkled. Almost everyone knows this. But do you know the root cause of this ... there is bond between dermis and epidermis remain the same. So to us the skin seems to have wrinkled.
Last Answer : Actually But The skin Wrinkles Goes No. Rather Happens Other A Incident ! And Us I think so Is That Leather Wrinkles Gone. Us Of the body Leather Pretty much How many? Level With Made. Us Leather ... Bonding Stays Those Place Previous Like Stays. So Us Near Leather Wrinkles Gone Says I think so Is.
Description : A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The ... = 283 s (B) t = 356 s (C) t = 400 s (D) t = 800 s
Last Answer : (D) t = 800 s
Description : Root development is promoted by (a) abscisic acid (b) auxin (c) gibberellin (d) ethylene
Last Answer : (d) ethylene.
Description : Who discovered gibberellins? -Biology
Description : Function of gibberellins in plants. -Biology
Description : Commercial uses of gibberellins. -Biology
Description : Which of the following enhances or induces fusion of protoplasts? (a) IAA and kinetin (b) IAA and gibberellins (c) Sodium chloride and potassium chloride (d) Polyethylene glycol and sodium nitrate
Last Answer : (d) Polyethylene glycol and sodium nitrate
Description : How do I get cat paw prints dipped in sealer off my painted porch?
Last Answer : What is sealer? Polyurethane?
Description : Is there a trick to keeping chocolate dipped fruit looking pretty?
Last Answer : I add a tablespoon of crisco when melting my chocolate for peanut butter balls to keep the chocolate held together. I don’t know if this would work on fruit also, but you could try it.
Description : An iron nail is dipped in the solution of copper sulphate for about 30 minutes. State the change in colour observed. Give reason for the change. -Chemistry-10
Last Answer : When an iron nail is dipped in copper sulphate solution, the displacement reaction takes place. The colour of copper sulphate solution fades due to the formation of light green solution of iron sulphate.
Description : Why does the colour of copper sulphate solution change when an iron nail is dipped in it ? -Chemistry-10
Description : Why does the colour of copper sulphate solution change when an iron nail is dipped in it? Write two observations. -Chemistry
Last Answer : Answer. It is because displacement reaction takes place. Iron displaces copper from copper sulphate solution and forms pale green coloured solution of FeS04 and reddish brown copper metal gets deposited. Fe(s) + CuS04(aq) ——–> FeS04(aq) + Cu(s)