Consider the following pairs Plant hormone Function/Effect 1. Indole-3 acetic acid — Rooting in cuttings 2. Gibberellic acid — Stomatal closure 3. Ethylene — Fruit ripening 4. Zeatin — Cell division Which of the above pairs are correctly matched? Select the correct answer from the following: (a) 1 and 3 (b) 1, 2, and 4 (c) 2 and 4 (d) 1, 2, 3, and 4

Consider the following pairs Plant hormone Function/Effect 1. Indole-3 acetic acid — Rooting in cuttings 2. Gibberellic acid — Stomatal closure 3. Ethylene — Fruit ripening 4. Zeatin — Cell division Which of the above pairs are correctly matched? Select the correct answer from the following: (a) 1 and 3 (b) 1, 2, and 4 (c) 2 and 4 (d) 1, 2, 3, and 4
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Last Answer : (a) Gibberellic acid - Leaf fall

One of the commonly used plant growth hormone in tea plantations is (a) ethylene (b) abscisic acid (c) zeatin (d) indole-3-acetic acid.

Description : One of the commonly used plant growth hormone in tea plantations is (a) ethylene (b) abscisic acid (c) zeatin (d) indole-3-acetic acid.

Last Answer : d) indole-3-acetic acid.

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

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Which of the following plant hormone was first isolated from a fungus? (a) Ethylene (b) Gibberellic acid (c) Kinetin (d) Zeatin

Description : Which of the following plant hormone was first isolated from a fungus? (a) Ethylene (b) Gibberellic acid (c) Kinetin (d) Zeatin

Last Answer : Ans:(b)

Hormone primarily connected with cell division is (a) IAA (b) NAA (c) cytokinin/zeatin (d) gibberellic acid.

Description : Hormone primarily connected with cell division is (a) IAA (b) NAA (c) cytokinin/zeatin (d) gibberellic acid.

Last Answer : (c) cytokinin/zeatin

Seed dormancy is regulatedby – (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene

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).

Seed dormancy is regulatedby (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene

Description : Seed dormancy is regulatedby (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene

Last Answer : Abscisic acid 

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Description : Which one of the following growth regulators is known as ‘stress hormone’? (a) Abscisic acid (b) Ethylene (c) GA3 (d) Indole acetic acid

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Which one of the following acids is a derivative of carotenoids? (a) Indole-3-acetic acid (b) Gibberellic acid (c) Abscisic acid (d) Indole butyric acid

Description : Which one of the following acids is a derivative of carotenoids? (a) Indole-3-acetic acid (b) Gibberellic acid (c) Abscisic acid (d) Indole butyric acid

Last Answer : (c) Abscisic acid

The hormone reducing transpiration rate by inducing stomatal closure is: (a) ABA (b) Ethylene (c) Cytokipin (d) Auxin

Description : The hormone reducing transpiration rate by inducing stomatal closure is: (a) ABA (b) Ethylene (c) Cytokipin (d) Auxin

Last Answer : Ans. ((a))

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

Which is produced during water stress that brings stomatal closure? (a) Ethylene (b) Abscisic acid (c) Ferulic acid (d) Coumarin

Description : Which is produced during water stress that brings stomatal closure? (a) Ethylene (b) Abscisic acid (c) Ferulic acid (d) Coumarin

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Description : The major auxin produced in plants is: a. Indole-3-butyric acid (IBA) b. Naphthalene acetic acid (NAA) c. Indole-3-acetic acid (IAA) d. Ethylene

Last Answer : Indole-3-acetic acid (IAA)

Which of the following is controlled by Gibberellic Acid? a. Prevention of the loss of flowers b. Vegetative Growth c. Ripening of fruits d. Fruit fall

Description : Which of the following is controlled by Gibberellic Acid? a. Prevention of the loss of flowers b. Vegetative Growth c. Ripening of fruits d. Fruit fall

Last Answer : d. Fruit fall

Which of the following is controlled by Gibberellic Acid? a. Prevention of the loss of flowers b. Vegetative Growth c. Ripening of fruits d. Fruit fall

Description : Which of the following is controlled by Gibberellic Acid? a. Prevention of the loss of flowers b. Vegetative Growth c. Ripening of fruits d. Fruit fall

Last Answer : d. Fruit fall

Which of the following pairs of states and their important crops are correctly matched? 1. Kerala Tapioca 2. Maharashtra Cotton 3. West Bengal Jute 4. Gujarat Groundnut Select the correct answer by using the codes given below: Codes: (a) 1, 2 and 3 (b) 1, 2 and 4 (c) 1, 3 and 4 (d) 2, 3 and 4

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Last Answer : Ans: (d)

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Description : Which of the following pairs are correctly matched? 1. Idukki Thermal power station 2. Sabarigiri Hydroelectric project 3. Ghatprabha Irrigation project 4. Ramganga Multipurpose project Select the correct answer by using the codes given below: Codes ... 4 (b) 1, 2, 3 and 4 (c) 3 and 4 (d) 1 and 2

Last Answer : Ans: (a)

Which of the following pairs are correctly matched? Irrigation Project State 1. Damanganga : Gujarat 2. Girna : Maharashtra 3. Pamba : Kerala Select the correct answer: (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

Description : Which of the following pairs are correctly matched? Irrigation Project State 1. Damanganga : Gujarat 2. Girna : Maharashtra 3. Pamba : Kerala Select the correct answer: (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

Last Answer : Ans: (d)

Which of the following pairs are correctly matched? 1. Narmada :Jabalpur 2. Godavari : Nasik 3. Mahanadi : Cuttack Select the correct answer using the codes given below: (a) 2 and 3 (b) 1 and 3 (c) 1 and 2 (d) 1, 2 and 3

Description : Which of the following pairs are correctly matched? 1. Narmada :Jabalpur 2. Godavari : Nasik 3. Mahanadi : Cuttack Select the correct answer using the codes given below: (a) 2 and 3 (b) 1 and 3 (c) 1 and 2 (d) 1, 2 and 3

Last Answer : Ans: (d)

Which hormone is responsible for fruit ripening? (a) Ethylene (b) Auxin (c) Ethyl chloride (d) Cytokinin

Description : Which hormone is responsible for fruit ripening? (a) Ethylene (b) Auxin (c) Ethyl chloride (d) Cytokinin

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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

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

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Effect of indole acetic acid on plant growth. -Biology

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Consider the following pairs: 1. Entomology-Study of insects 2. Mycology-Study of algae 3. Pedology-Study of soils 4. Pharmacology Study of medicine and their effect Which of the above pairs are correctly matched? (a) 1 and 4 (b) 3 and 4 (c) 1, 3, and 4 (d) 1, 2, 3, and 4

Description : Consider the following pairs: 1. Entomology-Study of insects 2. Mycology-Study of algae 3. Pedology-Study of soils 4. Pharmacology Study of medicine and their effect Which of the above pairs are correctly matched? (a) 1 and 4 (b) 3 and 4 (c) 1, 3, and 4 (d) 1, 2, 3, and 4

Last Answer : Ans:(b)

Choose the right combination: (A) Quinine', antimalarial, isoquinoline alkaloid (B) Reserpine, -antihypertensive, indole alkaloid (C) Quantitative microscopy, stomatal number, myrrh (D) Palmitic acid, salicylic acid , fatty acids

Description : Choose the right combination: (A) Quinine', antimalarial, isoquinoline alkaloid (B) Reserpine, -antihypertensive, indole alkaloid (C) Quantitative microscopy, stomatal number, myrrh (D) Palmitic acid, salicylic acid , fatty acids

Last Answer : (B) Reserpine, -antihypertensive, indole alkaloid

Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid? (a) AUG, ACG - Start/methionine (b) UUA, UCA - Leucine (c) GUU, GCU - Alanine (d) UAG, UGA - Stop

Description : Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid? (a) AUG, ACG - Start/methionine (b) UUA, UCA - Leucine (c) GUU, GCU - Alanine (d) UAG, UGA - Stop

Last Answer : (b) UUA, UCA - Leucine

Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid? (a) AUG, ACG - Start/methionine (b) UUA, UCA - Leucine (c) GUU, GCU - Alanine (d) UAG, UGA - Stop

Description : Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid? (a) AUG, ACG - Start/methionine (b) UUA, UCA - Leucine (c) GUU, GCU - Alanine (d) UAG, UGA - Stop

Last Answer : (d) UAG, UGA - Stop

Consider the following pairs: Tree: Location of its natural habitat 1. Rosewood: Slopes of Western Ghats of Karnataka and Kerala 2. Spruce : Western Himalayas at elevations from 2100 m to 3600 'm 3. Walnut: Lower elevations on Eastern Himalayas Which of the pair(s) given above is/are correctly matched? [IAS 2009] (a) A only (b) A and B (c) Band C (d) A, B and C

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Last Answer : Ans: (b)

With reference to Indian forests, consider the following pairs: 1. Tropical Moist Deciduous Forests Sandalwood (Santalum album) 2. Tropical Dry Deciduous Forests: (Shorea robusta) 3. Tropical Thorn Forests: Shisham (Dalbeigia sissoo) Which of the pairs given above is/are correctly matched? [IAS 2001] (a) 1 only (b) 1 and 2 only (c) 2 and 3 only (d) 1, 2 and 3

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Last Answer : Ans: (b)

Consider the following pairs: Tributary River Main River 1. Chambal Narmada 2. Sone Yamuna 3. Manas Brahmaputra Which of the pairs given above is/are correctly matched? (a) 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 3 only

Description : Consider the following pairs: Tributary River Main River 1. Chambal Narmada 2. Sone Yamuna 3. Manas Brahmaputra Which of the pairs given above is/are correctly matched? (a) 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 3 only

Last Answer : Ans: (d)

Consider the following pairs of types of bearings and applications: 1. Partial Journal bearing................... Rail wagon axles 2. Full journal bearing ......................Diesel engine crank-shaft 3. Radial bearing ............................Combined radial and axial loads Which of these pairs is/are correctly matched? [IES-2000] (a) 1 alone (b) 1 and 2 (c) 2 and 3 (d) 1, 2 and 3

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Last Answer : (b) 1 and 2

Abscisic acid (ABA) is natural plant hormone, which: a. Promote the growth b. Initiate the ripening c. Induce the fruit maturity d. retards the growth

Description : Abscisic acid (ABA) is natural plant hormone, which: a. Promote the growth b. Initiate the ripening c. Induce the fruit maturity d. retards the growth

Last Answer : retards the growth

Abscisic acid causes (a) stomatal closure (b) stem elongation (c) leaf expansion (d) root elongation.

Description : Abscisic acid causes (a) stomatal closure (b) stem elongation (c) leaf expansion (d) root elongation.

Last Answer : (a) stomatal closure

Which of the following is correctly matched for the product produced by them? (a) Methanobacterium : Lactic acid (b) Penicillium notatum : Acetic acid (c) Sacchromyces cerevisiae : Ethanol (d) Acetobacter aceti : Antibiotics

Description : Which of the following is correctly matched for the product produced by them? (a) Methanobacterium : Lactic acid (b) Penicillium notatum : Acetic acid (c) Sacchromyces cerevisiae : Ethanol (d) Acetobacter aceti : Antibiotics

Last Answer : (c) Sacchromyces cerevisiae : Ethanol

Which of the following is correctly matched for the product produced by them ? (1) Methanobacterium : Lactic acid (2) Penicillium notatum : Acetic acid (3) Sacchromyces cerevisiae : Ethanol (4) Acetobacter aceti : Antibiotics

Description : Which of the following is correctly matched for the product produced by them ? (1) Methanobacterium : Lactic acid (2) Penicillium notatum : Acetic acid (3) Sacchromyces cerevisiae : Ethanol (4) Acetobacter aceti : Antibiotics

Last Answer : (3) Sacchromyces cerevisiae : Ethanol

The hormone produced during adverse environmental conditions is (a) benzyl aminopurine (b) bichlorophenoxy acetic acid (c) ethylene (d) abscisic acid

Description : The hormone produced during adverse environmental conditions is (a) benzyl aminopurine (b) bichlorophenoxy acetic acid (c) ethylene (d) abscisic acid

Last Answer : (d) abscisic acid

The hormone responsible for ripening of fruits is (a) Ethylene (b) Cytokinin (c) Auxin (d) ABA

Description : The hormone responsible for ripening of fruits is (a) Ethylene (b) Cytokinin (c) Auxin (d) ABA

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The hypogeal germination is found in: (a) Bean (b) Maize (c) Rhizophora (d) Cucurbita Ans. (b) Directions: In the following questions more than one answer given may be correct select the correct answers according to the code— Code— (a) 1, 2 and 3 are correct (b) 1 and 2 are correct (c) 1, 2 and 4 are correct (d) 1 and 3 are correct 26. Which of following matched correctly? (1) Piper—Climbing root (2) Ficus—Climbing root (3) Buttress root—Bombax (4) Vitis—Nodulated root

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Last Answer : Ans. ((d))

Which of the following prevents the fall of fruits? (a) GA3 (b) NAA (c) Ethylene (d) Zeatin

Description : Which of the following prevents the fall of fruits? (a) GA3 (b) NAA (c) Ethylene (d) Zeatin

Last Answer : (b) NAA

Which one of the following generally acts as an antagonist to gibberellins? (a) Zeatin (b) Ethylene (c) ABA (d) IAA

Description : Which one of the following generally acts as an antagonist to gibberellins? (a) Zeatin (b) Ethylene (c) ABA (d) IAA

Last Answer : (c) ABA

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What is the role of indole acetic acid in plants ?

Description : What is the role of indole acetic acid in plants ?

Last Answer : Indole acetic acid helps to heal plant wounds.

What does indole acetic acid help to do ?

Last Answer : Helps to heal wounds.

Increased urinary indole acetic acid is diagnostic of (A) Maple syrup urine disease (B) Hartnup disease (C) Homocystinuia (D) Phenylketonuria

Description : Increased urinary indole acetic acid is diagnostic of (A) Maple syrup urine disease (B) Hartnup disease (C) Homocystinuia (D) Phenylketonuria

Last Answer : Answer : B

The gas used for artificial ripening of green fruit is - (1) ethane (2) ethylene (3) carbon dioxide (4) acetylene

Description : The gas used for artificial ripening of green fruit is - (1) ethane (2) ethylene (3) carbon dioxide (4) acetylene

Last Answer : (2) ethylene Explanation: Ethylene gas is used for artificial ripening of green fruit. Ethylene is a natural ripener, but it is also used as an artificial fruit ripener.

The gas used for artificial ripening of green fruit is - (1) Acetylene (2) Ethylene (3) Ethane (4) Carbon dioxide

Description : The gas used for artificial ripening of green fruit is - (1) Acetylene (2) Ethylene (3) Ethane (4) Carbon dioxide

Last Answer : (2) Ethylene Explanation: Fruits such as apples and pears emit a greater amount of ethylene gas in fruits, which affects their ripening.

The gas used for artificial fruit ripening of green fruit is – (1) Ethylene (2) Acetylene (3) Ethane (4) Methane

Description : The gas used for artificial fruit ripening of green fruit is – (1) Ethylene (2) Acetylene (3) Ethane (4) Methane

Last Answer : (1) Ethylene Explanation: Ethylene can promote ripening in tomatoes, bananas, citrus, pineapples, dates, persimmons, pears, apples, melons, mangos, avocados, papayas and jujubes - a ... with the specific biological phenomenon of accelerating the normal process of fruit maturation and senescence.

The gas used for artificial fruit ripening of green fruit is — (1) Ethylene (2) Acetylene (3) Ethane (4) Methane

Description : The gas used for artificial fruit ripening of green fruit is — (1) Ethylene (2) Acetylene (3) Ethane (4) Methane

Last Answer : Ethylene

Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it `?`

Description : Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it `?`

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