A variety or strain produced by horticultural or agricultural techniques and not normally found in natural population is called a) Hybrid b) Tissue culture c) GMO d) Cultivar

A variety or strain produced by horticultural or agricultural techniques and not normally found in natural population is called a) Hybrid b) Tissue culture c) GMO d) Cultivar
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Answer :

d) Cultivar
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With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

Description : With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

Last Answer : Ans. ((a))

In cold places frost damage can be reduced in horticultural crops using these methods except a) Overhead sprinklers at night b) Green houses and shade nets c) Wind breaks placement d) Appropriate fungicide application

Description : In cold places frost damage can be reduced in horticultural crops using these methods except a) Overhead sprinklers at night b) Green houses and shade nets c) Wind breaks placement d) Appropriate fungicide application

Last Answer : b) Green houses and shade nets

Which of the following is a correct description of ‘tissue culture’? (1) Conservation of forests and plantation (2) Growth and propagation of horticultural crops (3) Science of cultivating animal tissue in artificial medium (4) Protection of wild animals

Description : Which of the following is a correct description of ‘tissue culture’? (1) Conservation of forests and plantation (2) Growth and propagation of horticultural crops (3) Science of cultivating animal tissue in artificial medium (4) Protection of wild animals 

Last Answer : Science of cultivating animal tissue in artificial medium

Cultivar means a. Some cultivated variety b. Discarded variety c. Rejected variety d. Approved variety

Description : Cultivar means a. Some cultivated variety b. Discarded variety c. Rejected variety d. Approved variety

Last Answer : Some cultivated variety

The process through which the amount of DNA, RNA and protein can be known at a time is called (a) Autoradiography (b) Tissue culture (c) Cellular fractioning (d) Phase contrast microscopy

Description : The process through which the amount of DNA, RNA and protein can be known at a time is called (a) Autoradiography (b) Tissue culture (c) Cellular fractioning (d) Phase contrast microscopy

Last Answer : Ans. ((c))

Name the hormone which is used extensively in agricultural and horticultural practices and help to initiate rooting in stem curring during plant propa

Description : Name the hormone which is used extensively in agricultural and horticultural practices and help to initiate rooting in stem curring during plant propa

Last Answer : Name the hormone which is used extensively in agricultural and horticultural practices and help ... rooting in stem curring during plant propagation.

Name the hormone which is used extensively in agricultural and horticultural practices and help to initiate rooting in stem curring during plant propa

Description : Name the hormone which is used extensively in agricultural and horticultural practices and help to initiate rooting in stem curring during plant propa

Last Answer : Name the hormone which is used extensively in agricultural and horticultural practices and help ... rooting in stem curring during plant propagation.

The National Agricultural Insurance Scheme in its first two years of operation envisaged to cover...... (A) all crops-grown by small and marginal farmers only (B) all crops-cultivated with the help of crop loans only irrespective of the size of holding of the borrowers (C) all food crops-cultivated by all types of farmers (D) only horticultural crops (E) only seven commercial crops-grown under contract farming system

Description : The National Agricultural Insurance Scheme in its first two years of operation envisaged to cover...... (A) all crops-grown by small and marginal farmers only (B) all crops-cultivated with ... of farmers (D) only horticultural crops (E) only seven commercial crops-grown under contract farming system

Last Answer : (B) all crops-cultivated with the help of crop loans only irrespective of the size of holding of the borrowers

Consider the following statement: The ex situ conservation of genetic resources can be done through: (1) Tissue culture practices (2) Maintenance of sanctuaries (3) The establishment of germplasm banks (4) The establishment of national parks

Description : Consider the following statement: The ex situ conservation of genetic resources can be done through: (1) Tissue culture practices (2) Maintenance of sanctuaries (3) The establishment of germplasm banks (4) The establishment of national parks

Last Answer : Ans. ((d))

The process by which the amount of DNA, RNA and protein can be known at a time is: (a) Cell fractionation (b) Autoradiography (c) Phase-contrast microscopy (d) Tissue culture

Description : The process by which the amount of DNA, RNA and protein can be known at a time is: (a) Cell fractionation (b) Autoradiography (c) Phase-contrast microscopy (d) Tissue culture

Last Answer : Ans. ((b))

Hormone used in tissue culture for better growth is: (1) Auxin (2) Gibberellin (3) Cytokinin (4) Vernalin

Description : Hormone used in tissue culture for better growth is: (1) Auxin (2) Gibberellin (3) Cytokinin (4) Vernalin

Last Answer : Ans. ((d))

Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium a. Not digested by plant enzymes b. It does not use in micro-propagation work c. It does not react with media constituents d. Remain stable at incubation temperature

Description : Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium a. Not digested by plant enzymes b. It does not use in micro-propagation work c. It does not react with media constituents d. Remain stable at incubation temperature

Last Answer : b. It does not use in micro-propagation work

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 

scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in

Description : scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in

Last Answer : scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in – Stem of monocots

The main function of NABARD is a) Farmers' loaning b) Agricultural research c) Refinancing to agricultural financing institutions d) Development of agriculture

Description : The main function of NABARD is a) Farmers' loaning b) Agricultural research c) Refinancing to agricultural financing institutions d) Development of agriculture

Last Answer : c) Refinancing to agricultural financing institutions 

Deciduous forests have (a) Variety of grasses (b) Broad-leaved trees (c) narrow-leaved trees (d) Variety of crocodiles

Description : Deciduous forests have (a) Variety of grasses (b) Broad-leaved trees (c) narrow-leaved trees (d) Variety of crocodiles

Last Answer : Ans. ((b))

A plant breeder: waists to develop a disease resistant variety. What should he do first? a) Hybridisation b) Mutation c) Selection d) Production of crop

Description : A plant breeder: waists to develop a disease resistant variety. What should he do first? a) Hybridisation b) Mutation c) Selection d) Production of crop 

Last Answer :  c) Selection

What is common to the techniques (i) in vitro fertilisation, (ii) Cryopreservation and (iii) tissue culture?

Description : What is common to the techniques (i) in vitro fertilisation, (ii) Cryopreservation and (iii) tissue culture?

Last Answer : What is common to the techniques (i) in vitro fertilisation, (ii) Cryopreservation and (iii ... All are methods of conservation of extinct organisms.

Cross between hybrid and recessive parent is: (a) Back cross (b) Test cross (c) Monohybrid cross (d) Dihybrid cross Ans. (b) ................................................-----------------------------------------.................................................. PMT COACHING CLASSES (Zoology+Botany) – PMT, AIIMS, MBBS,lucknow 1. Largest egg of plant kingdom belongs to: (a) Cycas (b) Pinus (c) Psidium (d) Mangfera

Description : Cross between hybrid and recessive parent is: (a) Back cross (b) Test cross (c) Monohybrid cross (d) Dihybrid cross Ans. (b) ................................................----- ... - PMT, AIIMS, MBBS,lucknow 1. Largest egg of plant kingdom belongs to: (a) Cycas (b) Pinus (c) Psidium (d) Mangfera

Last Answer : Ans. ((a))

The high yielding hybrid crop varieties to exploit hybrid vigour, the farmers need to Purchase fresh hybrid seed every year because: (a) Hybrid vigour is not long standing due to inbreeding depression (b) They are not allowed to grow their own seed (c) It is always associated with 4ncreased heterozygosity (d) Government has accepted Dunkel’s proposals

Description : The high yielding hybrid crop varieties to exploit hybrid vigour, the farmers need to Purchase fresh hybrid seed every year because: (a) Hybrid vigour is not long standing due to inbreeding ... (c) It is always associated with 4ncreased heterozygosity (d) Government has accepted Dunkel's proposals

Last Answer : Ans. ((a))

Assertion : A major advantage of tissue culture is protoplast fusion. Reason : A hybrid is formed by the fusion of naked protoplasts of two plant.

Description : Assertion : A major advantage of tissue culture is protoplast fusion. Reason : A hybrid is formed by the fusion of naked protoplasts of two plant.

Last Answer : Assertion : A major advantage of tissue culture is protoplast fusion. Reason : A hybrid is formed ... false D. If both assertion and reason are false

what is cybrid ? a. Sexual hybrid b. Hybrid formed by cell division c. Tissue culture d. None of these

Description : what is cybrid ? a. Sexual hybrid b. Hybrid formed by cell division c. Tissue culture d. None of these

Last Answer : b. Hybrid formed by cell division

Which one of the following is normally not an atmospheric pollutant ? a) CO b) CO2 c) SO2 d) Hydrocarbon.

Description : Which one of the following is normally not an atmospheric pollutant ? a) CO b) CO2 c) SO2 d) Hydrocarbon.

Last Answer : b) CO2

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))

To obtain haploid plants, we culture _________ e. Entire anther f. Nucleus g. Embryo h. Apical bud

Description : To obtain haploid plants, we culture _________ e. Entire anther f. Nucleus g. Embryo h. Apical bud

Last Answer : e. Entire anther

In the secondary culture, cells are obtained from a. primary culture b. the organism c. organ culture d. phenotypic culture

Description : In the secondary culture, cells are obtained from a. primary culture b. the organism c. organ culture d. phenotypic culture

Last Answer : a. primary culture

What is the structure of sclerenchyma tissue ?

Description : What is the structure of sclerenchyma tissue ?

Last Answer : The cells of this tissue are hard , very long and have thick walls. Tissue is protoplasm -free , lignin-containing, and is specifically for mechanical work. Although protoplasm is present in the ... very thick and ligninous. Mature scleroid cells are usually dead. The cell wall is well-contained.

Development of Sporophyte from gametophyte tissue without fusion of gametes is: (a) Apospory (b) Apogamy (c) Apomixis (d) Parthenogenesis

Description : Development of Sporophyte from gametophyte tissue without fusion of gametes is: (a) Apospory (b) Apogamy (c) Apomixis (d) Parthenogenesis

Last Answer : Ans. ((b))

Water potential in leaf tissue is “positive” (near zero) during: (a) Low transpiration (b) Excessive absorption (c) Excessive transpiration (d) Gestation

Description : Water potential in leaf tissue is “positive” (near zero) during: (a) Low transpiration (b) Excessive absorption (c) Excessive transpiration (d) Gestation

Last Answer : Ans. ((d))

What tissue present in leaves of Pinus conducts food and water laterally? (a) Transfusion tissue (b) Phloem (c) Xylem (d) Medullary rays

Description : What tissue present in leaves of Pinus conducts food and water laterally? (a) Transfusion tissue (b) Phloem (c) Xylem (d) Medullary rays

Last Answer : Ans. ((a))

Callus is a. Tissue that forms embryo b. An insoluble carbohydrate c. Tissue that grows to form embryoid d. Unorganized actively dividing mass of cells maintained in cultured

Description : Callus is a. Tissue that forms embryo b. An insoluble carbohydrate c. Tissue that grows to form embryoid d. Unorganized actively dividing mass of cells maintained in cultured

Last Answer : d. Unorganized actively dividing mass of cells maintained in cultured

82. Closed vascular bundles lack (1) Pith (2) Ground tissue (3) Conjunctive tissue (4) Cambium

Description : 82. Closed vascular bundles lack (1) Pith (2) Ground tissue (3) Conjunctive tissue (4) Cambium

Last Answer : Cambium

The tissue which is involved in development of lateral roots is

Description : The tissue which is involved in development of lateral roots is

Last Answer : The tissue which is involved in development of lateral roots is – Pericycle

Name the living mechanical tissue? What is its function?

Description : Name the living mechanical tissue? What is its function?

Last Answer : Ans: Collenchyma. It helps in providing mechanical strength in aerial parts of dicots. If green, it carries out photosynthesis. Sometimes it is meristematic and gives rise cork cambium in dicot stems at the time of secondary growth.  

What is conjunctive tissue?

Description : What is conjunctive tissue?

Last Answer : Ans: The parenchymatous or sclerenchymatous tissue present between the xylem and phloem of radial vascular bundles of roots is called as conjunctive tissue. Due to its presence the vascular bundles are described as separate vascular bundles.

What are hydrophytes? Which type of tissue is responsible for buoyancy in hydrophytes?

Description : What are hydrophytes? Which type of tissue is responsible for buoyancy in hydrophytes?

Last Answer : Ans: Plants that live in water or water rich soils are called as hydrophytes. The tissue that helps in buoyancy is Aerenchyma.  

Where is the hormone called florigen produced ?

Description : Where is the hormone called florigen produced ?

Last Answer : A hormone called florigen is produced in the leaves.

Individuals of species which occur in a particular area constitute: (a) Flora (b) Fauna (c) Population (d) Flora and fauna

Description : Individuals of species which occur in a particular area constitute: (a) Flora (b) Fauna (c) Population (d) Flora and fauna

Last Answer : Ans. ((c))

Define Population and Community.

Description : Define Population and Community. 

Last Answer : Ans: Population is a group of similar individuals of a species living in an area. Community is a group of different species living under same climatic conditions.  

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

Which of the following hormones is produced in leaves ?

Description : Which of the following hormones is produced in leaves ?

Last Answer : Florigen is the hormone produced in the leaves.

How much ATP is produced when one molecule of glucose is completely oxidized in Sabat respiration ?

Description : How much ATP is produced when one molecule of glucose is completely oxidized in Sabat respiration ?

Last Answer : In one breath, one molecule of glucose is completely oxidized and produces 36 ATPs .

Consider the following statement: (1) In plant cells, cytokinesis start with the formation of the phragmoplast (2) Phragmoplast comprises intrazonal microtubules and Golgi vesicles (3) Primary cell wall is produced by microtubules (4) Phragmoplast is formed by nucleus

Description : Consider the following statement: (1) In plant cells, cytokinesis start with the formation of the phragmoplast (2) Phragmoplast comprises intrazonal microtubules and Golgi vesicles (3) Primary cell wall is produced by microtubules (4) Phragmoplast is formed by nucleus

Last Answer : Ans. ((a))

Pith is produced by the activity of: (a) Lateral metistem (b) Protodern (c) Procambium (d) Ground meristem

Description : Pith is produced by the activity of: (a) Lateral metistem (b) Protodern (c) Procambium (d) Ground meristem

Last Answer : Ans. ((d))

NADH is produced in:. (a) Photosystem-II (b) Photosystem-I (c) Glycolysis (d) Both (a) and (b)

Description : NADH is produced in:. (a) Photosystem-II (b) Photosystem-I (c) Glycolysis (d) Both (a) and (b)

Last Answer : Ans. ((c))

In bioremediation, bio-films are usually used a. At the source of pollutant b. After collection of pollutant c. After treatment of pollutant d. Before pollutant is produced

Description : In bioremediation, bio-films are usually used a. At the source of pollutant b. After collection of pollutant c. After treatment of pollutant d. Before pollutant is produced

Last Answer : a. At the source of pollutant

Potential energy is produced during a.Photorespiration b.Respiration c.Photosynthesis d.ATP synthesis

Description : Potential energy is produced during a.Photorespiration b.Respiration c.Photosynthesis d.ATP synthesis

Last Answer : c.Photosynthesis

Coacervates were experimentally produced by a) Oparin and Haldane b) Darwin c) Aristotle d) Louis Pasture

Description : Coacervates were experimentally produced by a) Oparin and Haldane b) Darwin c) Aristotle d) Louis Pasture 

Last Answer : a) Oparin and Haldane

Composted manure is produced froma) Farmyard manure and green manure b) Farm refuse and household refuse c) Organic remains of biogas plants d) Rotten vegetables and animal refuse

Description : Composted manure is produced froma) Farmyard manure and green manure b) Farm refuse and household refuse c) Organic remains of biogas plants d) Rotten vegetables and animal refuse

Last Answer : d) Rotten vegetables and animal refuse