A large number of identical plants can be obtained in a short span of time through - (1) large number of seeds of a single plant (2) stern cuttings (3) tissue culture technique (4) hydroponics method

A large number of identical plants can be obtained in a short span of time through - (1) large number of seeds of a single plant (2) stern cuttings (3) tissue culture technique (4) hydroponics method
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(3) tissue culture technique Explanation: Plant tissue culture is a collection of techniques used to maintain or grow plant cells, tissues or organs under sterile conditions on a nutrient culture medium of known composition. Plant tissue culture is widely used to produce clones of a plant in a method known as micropropagation. Plant tissue culture relies on the fact that many plant cells have the ability to regenerate a whole plant (totipotency). The culture medium contains a gel (agar) with the proper mixture of nutrients, sugars, vitamins and hormones, which causes the plant part to grow at very rapid rates to produce new plantlets.
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A large number of identical plants can be obtained in a short span of time through (1) large number of seeds of a single plant (2) stem cuttings (3) tissue culture technique (4) hydroponics method

Description : A large number of identical plants can be obtained in a short span of time through (1) large number of seeds of a single plant (2) stem cuttings (3) tissue culture technique (4) hydroponics method 

Last Answer : tissue culture technique

Tissue culture technique can produce infinite number of new plants from a small parental tissue. The economic importance of the technique is in raising(a) genetically uniform population identical to the original parent (b) homozygous diploid plants (c) new species (d) variants through picking up somaclonal variations.

Description : Tissue culture technique can produce infinite number of new plants from a small parental tissue. The economic importance of the technique is in raising (a) genetically uniform population ... homozygous diploid plants (c) new species (d) variants through picking up somaclonal variations.

Last Answer : (a) genetically uniform population identical to the original parent

The technique of obtaining large number plantlets by tissue culture method is called

Description : The technique of obtaining large number plantlets by tissue culture method is called

Last Answer : The technique of obtaining large number plantlets by tissue culture method is called A. ... . organ culture C. micropropagation D. macropropagation

The technique of obtaining large number of plantlets by tissue culture method is called (a) plantlet culture (b) organ culture (c) micropropagation (d) macropropagation.

Description : The technique of obtaining large number of plantlets by tissue culture method is called (a) plantlet culture (b) organ culture (c) micropropagation (d) macropropagation.

Last Answer : (c) micropropagation

Hydroponics is a method of culture of plants without using – (1) water (2) light (3) sand (4) soil

Description : Hydroponics is a method of culture of plants without using – (1) water (2) light (3) sand (4) soil

Last Answer : (4) soil Explanation: Hydroponics is a method of growing plants using mineral nutrient solutions, in water, without soil. Plants are grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite, gravel, mineral wool, expanded clay pebbles or coconut husk.

Hydroponics is a method of culture of plants without using (1) water (2) light (3) sand (4) soil

Description : Hydroponics is a method of culture of plants without using (1) water (2) light (3) sand (4) soil

Last Answer : soil

How are plant tissue culture and the regeneration of plant cuttings alike?

Description : How are plant tissue culture and the regeneration of plant cuttings alike?

Last Answer : They are basically the same because in both cases somaticmultiplication and cell differentiation take place to establish anew plant.

Reproduction of plants through seeds are also called: a. Asexual propagation b. Vegetative propagation c. Sexual propagation d. Tissue culture

Description : Reproduction of plants through seeds are also called: a. Asexual propagation b. Vegetative propagation c. Sexual propagation d. Tissue culture

Last Answer : Sexual propagation

To obtain virus - free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken? (a) Apical meristem only (b) Palisade parenchyma (c) Both apical and axillary meristems (d) Epidermis only

Description : To obtain virus - free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken? (a) Apical meristem only (b) Palisade parenchyma (c) Both apical and axillary meristems (d) Epidermis only

Last Answer : (c) Both apical and axillary meristems

$ The phenomenon of soil-less culture of plants is called Hydroponics. ! Donnan equilibrium is due to fixed ions in the cells

Description : $ The phenomenon of soil-less culture of plants is called Hydroponics. ! Donnan equilibrium is due to fixed ions in the cells

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What is bagging technique in plant tissue culture? -Biology

Description : What is bagging technique in plant tissue culture? -Biology

Last Answer : answer:

In order to obtain virus-free plants through tissue culture the best method is (a) meristem culture (b) protoplast culture (c) embryo rescue (d) anther culture.

Description : In order to obtain virus-free plants through tissue culture the best method is (a) meristem culture (b) protoplast culture (c) embryo rescue (d) anther culture.

Last Answer : (a) meristem culture

Hydroponics is the technique of cultivation of crops in—- a. Water b. Soil c. Air d. None of these

Description : Hydroponics is the technique of cultivation of crops in—- a. Water b. Soil c. Air d. None of these

Last Answer : a. Water

Hydroponics is the technique of cultivation of crops in—- a. Water b. Soil c. Air d. None of these

Description : Hydroponics is the technique of cultivation of crops in—- a. Water b. Soil c. Air d. None of these

Last Answer : a. Water

From which part of the Omit is clove, the commonly used spice, obtained - (1) Fruit (2) Flower bud (3) Stern (4) Root

Description : From which part of the Omit is clove, the commonly used spice, obtained - (1) Fruit (2) Flower bud (3) Stern (4) Root

Last Answer : (2) Flower bud Explanation: Cloves are the aromatic dried flower buds of a tree in the family Myrtaceae, Syzygium aromaticum. The clove tree is an evergreen that grows to a height ranging from ... terminating in four spreading sepals, and four unopened petals which form a small ball in the centre.

Somaclones are obtained by (a) plant breeding (b) irradiation (c) genetic engineering (d) tissue culture

Description : Somaclones are obtained by (a) plant breeding (b) irradiation (c) genetic engineering (d) tissue culture

Last Answer : (d) tissue culture.

9. Which one of the following is a case of wrong matching ? (1) Callus - Unorganised mass of cells produced in tissue culture (2) Somatic hybridization - Fusion of two diverse cells (3) Vector DNA - Site for t-RNA synthesis (4) Micropropagation - In vitro production of plants in large number

Description : 9. Which one of the following is a case of wrong matching ? (1) Callus - Unorganised mass of cells produced in tissue culture (2) Somatic hybridization - Fusion of two diverse cells (3) Vector DNA - Site for t-RNA synthesis (4) Micropropagation - In vitro production of plants in large number

Last Answer : Vector DNA - Site for t-RNA synthesis

Two plants can be conclusively said to belong to the same species if they (a) have more than 90 percent similar genes (b) look similar and possess identical secondary metabolites (c) have same number of chromosomes (d) can reproduce freely with each other and form seeds.

Description : Two plants can be conclusively said to belong to the same species if they (a) have more than 90 percent similar genes (b) look similar and possess identical secondary metabolites (c) have same number of chromosomes (d) can reproduce freely with each other and form seeds.

Last Answer : (d) can reproduce freely with each other and form seeds

Anther or pollen culture technique is used to obtained

Description : Anther or pollen culture technique is used to obtained

Last Answer : Ans. Haploid plants

Tissue culture technique was first attempted by

Description : Tissue culture technique was first attempted by

Last Answer : Tissue culture technique was first attempted by A. Haberlandt B. Nonbecourt C. Hanning D. Gautheret

Tissue culture is a good technique to a) Cross two varieties b) Rapidly increase the size of a trees by strengthening the stem c) Eliminate virus d) Improve yield of crops

Description : Tissue culture is a good technique to a) Cross two varieties b) Rapidly increase the size of a trees by strengthening the stem c) Eliminate virus d) Improve yield of crops 

Last Answer : c) Eliminate virus 

Which one of the following is a case of wrong matching? (a) Somatic – Fusion of two hybridization diverse cells (b) Vector DNA – Site for tRNA synthesis (c) Micropropagation – In vitro production of plants in large numbers (d) Callus – Unorganised mass of cells produced in tissue culture

Description : Which one of the following is a case of wrong matching? (a) Somatic – Fusion of two hybridization diverse cells (b) Vector DNA – Site for tRNA synthesis (c) Micropropagation – In vitro production of plants in large numbers (d) Callus – Unorganised mass of cells produced in tissue culture

Last Answer : (b) Vector DNA – Site for tRNA synthesis

Can we grow higher plants through Hydroponics? -Biology

Description : Can we grow higher plants through Hydroponics? -Biology

Last Answer : answer:

Starting torque can be obtained in the case of a single phase induction motor with identical main and ...

Description : Starting torque can be obtained in the case of a single phase induction motor with identical main and auxiliary windings by connecting:  (1) A capacitor across the mains (2) A capacitor in ... with the auxiliary winding (4) Equal value capacitors in series with the main and the auxiliary windings

Last Answer : Starting torque can be obtained in the case of a single phase induction motor with identical main and auxiliary windings by connecting:  A capacitor is series with the auxiliary winding.

$ Plants which live for many years are called perennials. Perennials which produce flowers and seeds only once during their life span are called monoc

Description : $ Plants which live for many years are called perennials. Perennials which produce flowers and seeds only once during their life span are called monoc

Last Answer : $ Plants which live for many years are called perennials. Perennials which produce flowers and seeds only once ... D. If both As and R are wrong.

Test tube baby means a baby born when (a) it is developed in a test tube (b) it is developed through tissue culture method (c) the ovum is fertilised externally and thereafter implanted in the uterus (d) it develops from a non-fertilised uterus.

Description : Test tube baby means a baby born when (a) it is developed in a test tube (b) it is developed through tissue culture method (c) the ovum is fertilised externally and thereafter implanted in the uterus (d) it develops from a non-fertilised uterus.

Last Answer : (c) the ovum is fertilised externally and thereafter implanted in the uterus

In your opinion, which is the most effective way to conserve the plant diversity of an area? (a) By tissue culture method (b) By creating biosphere reserve (c) By creating botanical garden (d) By developing seed bank

Description : In your opinion, which is the most effective way to conserve the plant diversity of an area? (a) By tissue culture method (b) By creating biosphere reserve (c) By creating botanical garden (d) By developing seed bank

Last Answer : (b) By creating biosphere reserve

In cutting method of vegetative propagation, cuttings are mainly taken from a) Leaves of parent plant b) Roots or stems of parent plant c) Shoots of parent plant d) Buds of parent plant

Description : In cutting method of vegetative propagation, cuttings are mainly taken from a) Leaves of parent plant b) Roots or stems of parent plant c) Shoots of parent plant d) Buds of parent plant

Last Answer : b) Roots or stems of parent plant

Hydroponics is a method of

Description : Hydroponics is a method of

Last Answer : growth of plants in liquid culture medium

A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be (A) 2/3 (B) 3/2 (C) 5/8 (D) 8/5

Description : A simply supported beam A carries a point load at its mid span. Another identical beam B carries  the same load but uniformly distributed over the entire span. The ratio of the maximum  deflections of the beams A and B, will be  (A) 2/3  (B) 3/2  (C) 5/8  (D) 8/5 

Last Answer : (D) 8/5 

one way to get a pure culture is by using _____. a. Aseptic technique b. Pour-plate method c. Streak-plate method d. A and C e. B and C

Description : one way to get a pure culture is by using _____. a. Aseptic technique b. Pour-plate method c. Streak-plate method d. A and C e. B and C

Last Answer : d. A and C

Hydroponics is growing plants in

Description : Hydroponics is growing plants in

Last Answer : Hydroponics is growing plants in A. Laboratory B. Phytotron C. Liquid culture medium D. Solid culture medium

What is the disadvantage of growing plants by hydroponics?

Description : What is the disadvantage of growing plants by hydroponics?

Last Answer : The main disadvantage growing plats by hydroponics is that it leads to rapid plant death.

Mention the advantages of growing plants by hydroponics.

Description : Mention the advantages of growing plants by hydroponics.

Last Answer : a) Soil is not required. b) Water requirement is less. c) Yields are stable and high. d) There will no weeds to remove. e) Plants grow healthier.

How are plants grown by hydroponics?

Description : How are plants grown by hydroponics?

Last Answer : In hydroponics, terrestrial plants are grown by immersing their roots in nutrient solution in specially designed containers.

If instead of soil, flowing water is used in a specially designed greenhouse farms to grow plants, then this type of farming is known as? a. Hydroculture b. Pisciponics c. Hydroponics d. Aquaponics

Description : If instead of soil, flowing water is used in a specially designed greenhouse farms to grow plants, then this type of farming is known as? a. Hydroculture b. Pisciponics c. Hydroponics d. Aquaponics

Last Answer : c. Hydroponics

Proof that plants can grow and reproduce using onl inorganic nutrients comes from the study of: a) phototrophic nutrition b) mycorrhiza c) hydroponics d) humus

Description : Proof that plants can grow and reproduce using onl inorganic nutrients comes from the study of: a) phototrophic nutrition b) mycorrhiza c) hydroponics d) humus

Last Answer : ANSWER: C -- HYDROPONICS

Plant that grow on extremely dry soil are classified under : (A)Thalophytes (B) Hydrophytes (C)Xerophytes (D) Hydroponics

Description : Plant that grow on extremely dry soil are classified under : (A)Thalophytes (B) Hydrophytes (C)Xerophytes (D) Hydroponics

Last Answer : (A)Thalophytes

Plant that grow on extremely dry soil are classified under : (A)Thalophytes (B) Hydrophytes (C)Xerophytes (D) Hydroponics

Description : Plant that grow on extremely dry soil are classified under : (A)Thalophytes (B) Hydrophytes (C)Xerophytes (D) Hydroponics

Last Answer : (A)Thalophytes

Growing of plant in soilness nutrient solution is referred as (a) Aeroponics (b) Hydroponics (c) Xeroponics (d) Thaloponics

Description : Growing of plant in soilness nutrient solution is referred as (a) Aeroponics (b) Hydroponics (c) Xeroponics (d) Thaloponics

Last Answer : (b) Hydroponics

Study of growing plant without soil in water containing nutrient is- (a) Hydrotonics (b) Hydroponics (c) Hypotonics (d) None

Description : Study of growing plant without soil in water containing nutrient is- (a) Hydrotonics (b) Hydroponics (c) Hypotonics (d) None

Last Answer : (b) Hydroponics 

Study the following statements: 1. Tea plants thrive best in alkaline soils with rainfall above 150 cm and temperature between 20 - 30°C 2. The most important stimulant both in tea and coffee is caffeine 3. ****, a popular alcoholic drink, especially among women, is prepared by distillation of fruit juices, mainly grapes 4. The drug cocaine is obtained from the roasted seeds of the cacao tree Which of the above statement/s is/are not true? (a) 1, 3, and 4 (b) 2 and 4 (c) 1 and 4 (d) Only 2

Description : Study the following statements: 1. Tea plants thrive best in alkaline soils with rainfall above 150 cm and temperature between 20 - 30°C 2. The most important stimulant both in tea and coffee is caffeine 3. Wine, a popular alcoholic drink ... true? (a) 1, 3, and 4 (b) 2 and 4 (c) 1 and 4 (d) Only 2

Last Answer : Ans:(a)

Delicious chilgoza seeds, commercially important products such as turpentine and resin and the drug ephedrine, useful in asthma and other respiratory ailments, are all obtained from plants that are (a) Ferns (b) Algae (c) Monocotyledons and dicotyledons (d) Gymnosperms

Description : Delicious chilgoza seeds, commercially important products such as turpentine and resin and the drug ephedrine, useful in asthma and other respiratory ailments, are all obtained from plants that are (a) Ferns (b) Algae (c) Monocotyledons and dicotyledons (d) Gymnosperms

Last Answer : Ans:(d)

The nutritive tissue in the seeds of higher plants is known as - (1) hypocotyl (2) embryo (3) endosperm (4) nucellus

Description : The nutritive tissue in the seeds of higher plants is known as - (1) hypocotyl (2) embryo (3) endosperm (4) nucellus

Last Answer : (3) endosperm Explanation: The seed includes three primary regions: the embryo, nutritive tissue, and seed coat. Endosperm is a nutritive tissue that sustains the embryo and seedling. The endosperm may ... the embryo as in many legumes, which use the cotyledons as a food source during germination.

In which of the following would you place the plants having vascular tissue lacking seeds? (a) Pteridophytes (b) Gymnosperms (c) Algae (d) Bryophytes

Description : In which of the following would you place the plants having vascular tissue lacking seeds? (a) Pteridophytes (b) Gymnosperms (c) Algae (d) Bryophytes

Last Answer : (a) Pteridophytes

The nutritive tissue in the seeds of higher plants is known as (1) hypocotyl (2) embryo (3) endosperm (4) nucellus

Description : The nutritive tissue in the seeds of higher plants is known as (1) hypocotyl (2) embryo (3) endosperm (4) nucellus

Last Answer : endosperm

Formation width for cuttings for B.G. single line section is (a) 5.40 m (b) 6.20 m (c) 6.25 m* (d) 6.50 m

Description : Formation width for cuttings for B.G. single line section is (a) 5.40 m (b) 6.20 m (c) 6.25 m* (d) 6.50 m

Last Answer : (c) 6.25 m*

Which one of the following is the most appropriate management control technique for timely completion of a project ? (A) Organisation chart (B) Management by Objectives (C) PERT (D) Span of control

Description : Which one of the following is the most appropriate management control technique for timely completion of a project ? (A) Organisation chart (B) Management by Objectives (C) PERT (D) Span of control

Last Answer : Answer: PERT

Haploid plants can be obtained from: (a) Leaf culture (b) Bud culture (c) Root culture (d) Anther culture

Description : Haploid plants can be obtained from: (a) Leaf culture (b) Bud culture (c) Root culture (d) Anther culture

Last Answer : Ans. ((d))

Read the following four statements (A-D). (A) Colostrum is recommended for the new born because it is rich in antigens. (B) Chikungunya is caused by a Gram negative bacterium. (C) Tissue culture has proved useful in obtaining virus-free plants. (D) **** is manufactured by distillation of fermented grape juice. How many of the above statements are wrong? (a) Two (b) Three (c) Four (d) One

Description : Read the following four statements (A-D). (A) Colostrum is recommended for the new born because it is rich in antigens. (B) Chikungunya is caused by a Gram negative bacterium. (C) Tissue culture has proved useful ... . How many of the above statements are wrong? (a) Two (b) Three (c) Four (d) One

Last Answer : (B) Chikungunya is caused by a Gram negative bacterium.