Description : Which of the following plant hormones are incorrectly paired? (1) abscisic acid- transpiration (2) auxins- apical dominance (3) cytoldnins- senescence (4) gibberlins- bud and seed dormancy
Last Answer : (4) gibberlins- bud and seed dormancy Explanation: Abscisic acid is responsible for responsible for dormancy of various types. It maintains dormancy in seeds and buds, stimulates the closing of stomata. Gibberellins are responsible for cell division and growth in cell size.
Description : Hormones which control apical dominance are: a. Auxins b. Cytokinins c. Gibberellins d. Polyamines
Last Answer : Cytokinins
Description : Apical dominance is caused by (a) abscisic acid in lateral bud (b) cytokinin in leaf tip (c) gibberellin in lateral buds (d) auxin in shoot tip.
Last Answer : (d) auxin in shoot tip.
Description : Leaf fall can be prevented with the help of (a) abscisic acid (b) auxins (c) florigen (d) cytokinins.
Last Answer : (d) cytokinins.
Description : $ Those lateral buds which are near the apical bud are called dormant buds. ! Dormancy of lateral buds is due to Apical dominance
Last Answer : $ Those lateral buds which are near the apical bud are called dormant buds. ! Dormancy of lateral buds is ... is wrong D. If both As and R are wrong.
Description : Role of auxins in apical dominance? -Biology
Last Answer : answer:
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 : ________ can release lateral buds from apical dominance : a. Auxins b. Gibberellins c. Kinins d. None of above
Last Answer : Kinins
Description : The regulator which retards ageing/senescence of plant parts is (a) cytokinin (b) auxin (c) gibberellin (d) abscisic acid.
Last Answer : (a) cytokinin
Description : Which of the following structures or regions is incorrectly paired with its functions? (a) Medulla : Controls respiration oblongata and cardiovascular reflexes (b) Limbic : Consists of fibre tracts ... thirst (d) Corpus callosum : Band of fibers connecting left and right cerebral hemispheres
Last Answer : (b) Limbic : Consists of fibre tracts system that interconnect different regions of brain controls movement
Description : Which of the following structures or regions is incorrectly paired with its function ? (1) Medulla oblongata : controls respiration and cardiovascular reflexes. (2) Limbic system : consists of fibre ... and thirst. (4) Corpus callosum : band of fibers connecting left and right cerebral hemispheres.
Last Answer : (2) Limbic system : consists of fibre tracts that interconnect different regions of brain; controls movement.
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 : Seed dormancy is regulatedby – (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene
Last Answer : (1) Abscisic acid Explanation: The transition from dormancy to germination in seeds is a key physiological process during the lifecycle of plants. Abscisic acid (ABA) is the sole plant ... acts through a gene expression network involving the transcription factor ABSCISIC ACID INSENSITIVE 3 (ABI3).
Description : Seed dormancy is due to the (a) ethylene (b) abscisic acid (c) IAA (d) starch.
Last Answer : (b) abscisic acid
Description : Which of the following is not an inhibitory substance governing seed dormancy? (a) Gibberellic acid (b) Abscisic acid (c) Phenolic acid (d) Para-ascorbic acid
Last Answer : a) Gibberellic acid
Description : Seed dormancy is regulatedby (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene
Last Answer : Abscisic acid
Description : Leaf senescence can be retarded by the application of : a. Auxins b. Gibberellins c. Kinins d. Abscicic acid
Description : The PGR causes apical bud dominance
Last Answer : Ans. Auxins
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 : How does pruning help in making the hedge dense? (a) It releases wound hormones. (b) It induces the differentiation of new shoots from the rootstock. (c) It frees axillary buds from apical dominance. (d) The apical shoot grows faster after pruning
Last Answer : (c) It frees axillary buds from apical dominance.
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 : Plants, protein, RNA, DNA contents are increased by a. Auxins b. Adenine c. Cytokinins d. None of above
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
Description : Abscisic acid controls (a) cell division (b) leaf fall and dormancy (c) shoot elongation (d) cell elongation and wall formation.
Last Answer : b) leaf fall and dormancy
Description : The process of growth is maximum during (a) log phase (b) lag phase (c) senescence (d) dormancy.
Last Answer : (a) log phase
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 : Which of the following is incorrectly paired with respect to the dynasties ruling in Italy? a. Northern Italy- Austrian Habsburgs b. Central Italy- Pope c. Southern Italy- Bourbon kings of France d. Sardinia Piedmont-Italian Princely House
Last Answer : c. Southern Italy- Bourbon kings of France
Description : Which of the following regions of the brain is incorrectly paired with its function? (a) Corpus callosum - communication between the left and right cerebral cortices (b) Cerebrum - calculation and contemplation (c) Medulla oblongata - homeostatic control (d) Cerebellum - language comprehension
Last Answer : (d) Cerebellum - language comprehension
Description : Which IP Address Class is INCORRECTLY paired with its range of network numbers? * Class A addresses include 192.0.0.0 through 223.255.255.0 * Class A addresses include 1.0.0.0 through 126.0.0.0 * Class B ... 192.0.0.0 through 223.255.255.0 * Class D addresses include 224.0.0.0 through 239.255.255.0
Last Answer : 1
Description : Which addresses are INCORRECTLY paired with their class? * 240 - 255, Class D * 240 - 255, Class E * 224 - 239, Class D
Last Answer : Correct answer: A & D Address classes are: 1 to 126, Class A; 128 to 191, Class B, 192 to 223, Class C; 224 to 239, Class D; and 240 to 255, Class E.
Description : Which addresses are INCORRECTLY paired with their class? * 1 to 126, Class A * 128 to 191, Class A * 1 to 126, Class B * 128 to 191, Class B
Last Answer : Correct answer: B & C. Address classes are: 1 to 126, Class A; 128 to 191, Class B, 192 to 223, Class C; 224 to 239, Class D; and .
Description : Which addresses are INCORRECTLY paired with their class? * 128 to 191, Class B * 192 to 223 Class B * 128 to 191, Class C * 192 to 223, Class C
Last Answer : Correct answer: B & C Address classes are: 1 to 126, Class A; 128 to 191, Class B, 192 to 223, Class C; 224 to 239, Class D; and
Description : Select the hormone INCORRECTLY paired with its target. a) TSH - thyroid gland b) ACTH - anterior pituitary c) LH - ovary or testis d) MSH - melanocytes (pron: meh-lan-o-cite)
Last Answer : ANSWER: D -- MSH - MELANOCYTES
Description : You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots? ... gibberellin (b) Auxin and cytokinin (c) Auxin and abscisic acid (d) Gibberellin and abscisic acid
Last Answer : (b) Auxin and cytokinin
Description : It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield? ... (b) Auxin and Ethylene (c) Gibberellin and Cytokinin (d) Gibberellin and Abscisic acid
Last Answer : (b) Auxin and Ethylene
Description : Advantage of apical dominance to a plant? -Biology
Description : Through their effects on plant growth regulators, what do the temperature and light control in the plants? (a) Apical dominance (b) Flowering (c) Closure of stomata (d) Fruit elongation
Last Answer : (b) Flowering
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 : Removal of apical bud results in (a) formation of new apical bud (b) elongation of main stem (c) death of plant (d) formation of lateral branching.
Last Answer : d) formation of lateral branching.
Description : If the apical bud has been removed then we observe (a) more lateral branches (b) more axillary buds (c) plant growth stops (d) flowering stops.
Last Answer : (a) more lateral branches
Description : What is apical dominance? -Biology
Description : Apical dominance can be removed by? -Biology
Description : Why is apical dominance adaptive? -Biology
Description : What controls apical dominance? -Biology
Description : Apical dominance lateral buds. -Biology
Description : Apical dominance of potato. -Biology