Botany, also called plant science(s), plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress.Botany originated in prehistory as herbalism with the efforts of early humans to identify – and later cultivate – edible, medicinal and poisonous plants, making it one of the oldest branches of science. Medieval physic gardens, often attached to monasteries, contained plants of medical importance.Modern botany is a broad, multidisciplinary subject with inputs from most other areas of science and technology. Research topics include the study of plant structure, growth and differentiation, reproduction, biochemistry and primary metabolism, chemical products, development, diseases, evolutionary relationships, systematics, and plant taxonomy. Botney is scientific study of the physiology, structure, genetics, ecology, distribution, classification, and economic importance of plan. By this definition plants include, algae, fungi, lichens, mosses, ferns, conifers and flowering plants.Just follow the Mcqs online quiz being dispatched over here with respect to your preparation for entry admission test NTS PPSC OTS PTS and missllenous job exams simultaneously.
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Botany Mcqs Online With Answers for NTS PPSC Entry Test Classes
Botany
Botany Mcqs with Answers Solved
Vegetables and fruit should be a part of our diet because the stimulate?
A. Excretion
B. Respiration
C. Salivation
D. Peristalsis
Right Answer: D. Peristalsis
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Which of the following groups of organisms reproduce faster?
A. Bacteria
B. Algae
C. Protozoa
D. Fungi
Right Answer: A. Bacteria
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The oil seed which is not edible?
A. Groundnut
B. Sesamum
C. Sunflower
D. Cottonseed
Right Answer: D. Cottonseed
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Leech is an ectoparasite on cattle, which is?
A. Herbivorous
B. Omnivorous
C. Carnivorous
D. Sanguivorous
Right Answer: A. Herbivorous
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which of the following food items is rich in iron?
A. Orange
B. Pulses
C. Apple
D. Rice
Right Answer: C. Apple
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Which of the following represents a food-chain involving a producer, a vegetarian and a non-vegetarian?
A. Tiger-Rabbit-Owl
B. Grass-Insect-Elephant
C. Plant-Rabbit-Tiger
D. Fish-Insect-Whale
Right Answer: C. Plant-Rabbit-Tiger
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Polyribosomes are aggregates of?
A. Ribosomes and r-RNA
B. Only r-RNA
C. Peroxisomes
D. Several ribosomes held together by string of m-RNA
Right Answer: D. Several ribosomes held together by string of m-RNA
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In plant-water relationships, symbol ‘YW’ is used to represent?
A. Solute potential
B. Osmosis
C. Water potential
D. Osmotic pressure
Right Answer: C. Water potential
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The conversion of pyruvate into acetyl C0.A is called?
A. Glycolysis
B. Fermentation
C. Oxidative carboxylation
D. B-oxidation
Right Answer: A. Glycolysis
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Water in plants is trans-ported by?
A. Xylem
B. Epidermis
C. Phloem
D. Cambium
Right Answer: A. Xylem
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Water of coconut is?
A. Liquid endocarp
B. Liquid nucellus
C. Liquid mesocarp
D. Degenerated liquid endosperm
Right Answer: D. Degenerated liquid endosperm
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Maximum harm to a tree is caused by?
A. Loss of its bark
B. Loss of half of its leaves
C. Loss of half of its branches
D. Loss of all leaves
Right Answer: D. Loss of all leaves
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Respiration is?
A. Oxidation
B. Amination
C. Reduction
D. Hydrolysis
Right Answer: A. Oxidation
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Eyes of potato are useful for?
A. Vegetative propagation
B. Nutrition
C. Reproduction
D. Respiration
Right Answer: A. Vegetative propagation
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In a-helix secondary structure, hydrogen bonds lie between amide group of one amino acid and carbonyl group of?
A. 2nd amino acid
B. 3rd amino acid
C. Fourth amino acid
D. Fifth amino acid
Right Answer: C. Fourth amino acid
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Cereals are a rich source of?
A. Starch
B. Maltose
C. Glucose
D. Fructose
Right Answer: A. Starch
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Which of the following is a rich source of Vitamin B-12?
A. Milk
B. Watermelon
C. Apple
D. Cashew nut
Right Answer: D. Cashew nut
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Fiber diet includes?
A. Fats
B. Cellulose
C. Glycogen
D. Proteins
Right Answer: B. Cellulose
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In a plant, the xylem tissue conducts?
A. Food
B. Water
C. All of the above
D. None of the above
Right Answer: B. Water
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A plant with fibrous root system is?
A. Mustard
B. Wheat
C. Bean
D. Pea
Right Answer: B. Wheat
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Transpiration through leaves is called as?
A. Foliar transpiration
B. Cuticular transpiration
C. Lenticular transpiration
D. Cauline transpiration
Right Answer: A. Foliar transpiration
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In C3 plants first stable product photosynthesis during dark reaction is?
A. PGA
B. Pyruvic acid
C. RuBP
D. Oxalo acetic acid
Right Answer: A. PGA
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The primary source of carbohydrates are?
A. Crude oil
B. Marine animals
C. Coal-tar
D. Plants
Right Answer: D. Plants
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The interaction between alage and fungi to form lichen is called?
A. Parasitism
B. Mutalism
C. Amensalism
D. None of these
Right Answer: B. Mutalism
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Which of the following provides energy for photosynthesis?
A. Sunlight
B. Water
C. Carbon dioxide
D. Chlorophyll
Right Answer: A. Sunlight
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Stem is usually?
A. Positively Phototropic
B. Positively Acrotropic
C. Negatively Geotropic
D. Negatively Phototropic
Right Answer: A. Positively Phototropic
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The floral part that produces pollen grains is?
A. Sepal
B. Petal
C. Anther
D. Ovary
Right Answer: C. Anther
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The book “Origin of Species” was written by?
A. Linnaeus
B. Lamarck
C. Mendel
D. Darwin
Right Answer: D. Darwin
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Which of the following food stuff of the same quantity possesses the highest calorific value?
A. Cheese
B. Sugar
C. Butter
D. Apple
Right Answer: C. Butter
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Which of the following is not included in the Technology Mission?
A. Pulses
B. Vegetables
C. Oil seeds
D. Maize
Right Answer: B. Vegetables
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The term of ‘GM food’ refers to the food?
A. That is genetically modified
B. That grows under geographical modification
C. With greater glucose metabolism
D. That grows under genetic measures
Right Answer: A. That is genetically modified
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Mushroom cultivation is not useful in?
A. Recycling of agricultural wastes
B. Biogas production
C. Biological production of crop diseases
D. Preventing cancer
Right Answer: C. Biological production of crop diseases
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Rod shaped bacteria is called?
A. Coccus
B. Bacillus
C. Coam
D. Spirillum
Right Answer: B. Bacillus
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Which of the following is an insectivorous plant?
A. Drosera
B. Orobanche
C. Rafflesia
D. Balanophora
Right Answer: A. Drosear
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Which components of light are absorbed by chlorophyll?
A. Blue and red
B. Violet and yellow
C. Violet and red
D. Indigo and orange
Right Answer: C. Violet and red
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Blue-green algae are included in the group?
A. Protozoa
B. Cyanobacteria
C. Eubacteria
D. Fungi
Right Answer: B. Cyanobacteria
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Largest number of Eucalyptus species is found in?
A. Australia
B. Pakistan
C. Burma
D. New Zealand
Right Answer: A. Australia
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The plants, which grows under water stress conditions of deserts are?
A. Epiphytes
B. Xerophytes
C. Sciophytes
D. Heliophytes
Right Answer: B. Xerophytes
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Root nodules are commonly found in?
A. Aquatic plants
B. Leguminous plants
C. Parasitic plants
D. Epiphytic plants
Right Answer: B. Leguminous plants
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Washing of Peeled vegetables removes the vitamin?
A. E
B. D
C. A
D. C
Right Answer: B. D
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Ascent of sap in plants takes place through?
A. Xylem
B. Pith
C. Phloem
D. Cambium
Right Answer: A. Xylem
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The actual location or place where an an organism lives is called?
A. Habitat
B. Ecosystem
C. Niche
D. Biome
Right Answer: A. Habitat
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A seed can germinate in the absence of?
A. Adequate light
B. Supply of oxygen
C. Suitable moisture
D. Suitable temperature
Right Answer: A. Adequate light
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An example of false fruit is?
A. Tomato
B. Mango
C. Apple
D. Guava
Right Answer: C. Apple
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Vegetable oil are converted into solid fat (ghee) by?
A. Hydrogenation
B. Hydrolysis
C. Addition of agar
D. Oxidation using air and a catalyst
Right Answer: A. Hydrogenation
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Which fruit has its seed outside?
A. Groudnut
B. Cashew nut
C. Strawberry
D. Banana
Right Answer: C. Strawberry
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Which one of the following is not a plant product?
A. Nicotine
B. Caffeine
C. Saccharin
D. Piperine
Right Answer: C. Saccharin
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A plant which reproduces by means of spores?
A. Petunia
B. Ferns
C. Coriander
D. Mustard
Right Answer: B. Ferns
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Saprophytes are the organisms which depend for food on?
A. Inorganic chemical compounds
B. Dead and decaying material
C. Living plants
D. Living animals
Right Answer: B. Dead and decaying material
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Ripe grapes contain?
A. Fructose
B. Glucose
C. Sucrose
D. Galactose
Right Answer: A. Fructose
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Drying oil contain a family large proportion of?
A. Proteins
B. Fats
C. Saturated fatty acids
D. Unsaturated fatty acids
Right Answer: D. Unsaturated fatty acids
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The oil which causes dropsy is?
A. Coconut oil
B. Sunflower oil
C. Argemone oil
D. Groundnut oil
Right Answer: C. Argemone oil
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The plant from which cocoa and chocolate are obtained is a?
A. Herb
B. Shrub
C. Small tree
D. Big tree
Right Answer: C. Small tree
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The source of oxygen generated during photosynthesis is?
A. Chlorophyll
B. water
C. Mesophyll cells
D. Carbon dioxide
Right Answer: B. water
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The minimum interval time required between application of stimulus and production of response is?
A. Presentation time
B. Relaxation time
C. Conversion time
D. Reaction time
Right Answer: D. Reaction time
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An insect-catching plant is?
A. Smilax
B. Nerium
C. Nepenthes
D. Australian Acacia
Right Answer: C. Nepenthes
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The vitamin most readily destroyed by heat is?
A. Tocopherol
B. Riboflavin
C. Thiamine
D. Ascorbic acid
Right Answer: D. Ascorbic acid
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All the progeny obtained from a single plant by vegetative propagation are called?
A. Clones
B. Pure line
C. Indred line
D. Pedigree line
Right Answer: A. Clones
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Entomology is the study of?
A. Fungi
B. Fossils
C. Insects
D. Birds
Right Answer: C. Insects
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Which of the following plant absorbs in red and farred region of light?
A. Cryptochrome
B. Carotenoid
C. Chlorophyll
D. Phytochrome
Right Answer: D. Phytochrome
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Fist is a first class protein as it contains?
A. Essential amino-acids
B. Non essential amino acids
C. All essential fatty acids
D. No amino acids
Right Answer: A. Essential amnio-acids
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Carrot is orange in colour because?
A. It grows in the soil
B. It contains carotene
C. It is not exposed to sunlight
D. The entire plant is orange in colour
Right Answer: B. It contains carotene
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Which one of the following is used as a food preservative?
A. Sodium benzoate
B. Sodium bicarbonate
C. Sodium thiosulphate
D. Sodium hydroxide
Right Answer: A. Sodium benzoate
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Which of the following is present in chlorophyll molecule?
A. Fe
B. K
C. Mn
D. Mg
Right Answer: D. Mg
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The enzyme in whose presence glucose and fructose and converted into alcohol is?
A. Invertase
B. Diastase
C. Zymase
D. Maltase
Right Answer: C. Zymase
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Gasohol is?
A. 20% ethanol + 80% petrol
B. 20% ethanol + 70% petrol + 10% kerosene
C. 10% ethanol + 80% petrol + 10% kerosene
D. 10% ethanol + 90% petrol
Right Answer: A. 20% ethanol + 80% petrol
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Hydroponics is a method of culture of plants without using?
A. Soil
B. Light
C. Water
D. Sand
Right Answer: A. Soil
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In a food chain, the solar energy utilized by plants is only?
A. 0.01%
B. 0.1%
C. 1%
D. 10%
Right Answer: B. 0.1%
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The presence of air cavities is an adaptation of?
A. Trees
B. Mesophytes
C. Desert plants
D. Water plants
Right Answer: D. Water plants
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Hashish is obtained from plant. From which part of the plant is it obtained?
A. Leaves
B. Stem
C. Exudate from stem and male inflorescences
D. Exudate from stem and female inflorescences
Right Answer: D. Exudate from stem and female inflorescences
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From which part of a plant is turmeric obtained?
A. Fruit
B. Stem
C. Flower
D. Root
Right Answer: B. Stem
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Which plant is called ‘Herbal Indian Doctor’?
A. Neem
B. Amla
C. Tulsi
D. Rajanigandha
Right Answer: B. Amla
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The best example of Polyembryony is?
A. Citrus
B. Cocoa
C. Cycas
D. Capsicum
Right Answer: A. Citrus
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Where are the Eucalyptus trees found in abundance?
A. Nilgiri Hills
B. Mizo Hills
C. Naga Hills
D. Manipur Hills
Right Answer: A. Nilgiri Hills
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The non-green heterotropic plants of plant kingdom are?
A. Fungi
B. Algae
C. Ferns
D. Mosses
Right Answer: A. Fungi
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The dried flower buds are used as a spice in?
A. Saffron
B. Cloves
C. Cinnamon
D. Cardamom
Right Answer: B. Cloves
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The site of chromosome on which a gene is located is called?
A. Allele
B. Locus
C. Site
D. Trait
Right Answer: B. Locus
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Pesticides comprise?
A. Herbicides and insecticides
B. Insecticides
C. Insecticides, nematecides and rodenticides
D. Fingicides, herbicides, insecticides, nematecides and rodenticides
Right Answer: D. Fingicides, herbicides, insecticides, nematecides and rodenticides
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The loading of phloem during translocation means?
A. elongation of phloem cells
B. Separation of phloem parenchyma
C. Strengthening of phloem fibers
D. Pouring of sugars into phloem
Right Answer: D. Pouring of sugars into phloem
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A plant with compound leave is?
A. Hibiscus
B. Peepal
C. Coconut
D. Papaya
Right Answer: C. Coconut
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A sequence of changes in the community structure of an ecosystem over a period of time is called?
A. Natural selection
B. Succession
C. Neo-Darwinism
D. None of these
Right Answer: B. Succession
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Through ‘photosynthesis’ green plants generates?
A. Nutrients
B. Inorganic material
C. Minerals
D. Organic materials
Right Answer: D. Organic materials
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Crude oil is sometimes termed sweet because it is?
A. Less alkaline
B. Less acidic
C. Sweet in taste due to dissolved sugar
D. Mildly sweet due to low sulphur content
Right Answer: D. Mildly sweet due to low sulphur content
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In a dihybrid cross, the ratio of F2 generation is?
A. 9:3:3:1
B. 3:1
C. 1:2:1
D. 1:1
Right Answer: A. 9:3:3:1
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Bt seed is associated with?
A. Wheat
B. Cotton
C. Rice
D. Oil seeds
Right Answer: B. Cotton
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Which one of the following is also called the ‘power plants’ of the cell?
A. Golgi body
B. Mitochondrion
C. Ribosome
D. Lysosome
Right Answer: B .Mitochondrion
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An algae rich in proteins is?
A. Chlorella
B. Oscillatoria
C. Ulothrix
D. Spirigyra
Right Answer: A. Chlorella
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The tallest plant in the world is?
A. Pterocarpus
B. Eucalyptus
C. Tectona
D. Polyalthia
Right Answer: B. Eucalyptus
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Bryophytes are often called as amphibian plant because they?
A. Do not have habitat preference
B. Can eat insects
C. Are found both in water on land
D. Appear like frog
Right Answer: C. Are found both in water on land
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The age of trees is determined by its?
A. Height
B. Girth
C. General appearance
D. Growth rings
Right Answer: Growth rings
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Poamto is somatic hybrid between?
A. Poppy and potato
B. Potato and tomato
C. Poppy and tamarind
D. Poppy and tomato
Right Answer: B. Potato and tomato
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Onion is a modified form of?
A. Leaf
B. Stem
C. Root
D. None of these
Right Answer: B. Stem
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The plant that behaves as a root parasite is?
A. Ficus
B. Euphorbia
C. Cuscuta
D. Santalum
Right Answer: C. Cuscuta
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The edible part of Cabbage is?
A. Vegetative bud
B. Fruit
C. Inflorescence
D. Condensed flower
Right Answer: A. Vegetative bud
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The protein part of enzyme is?
A. Prosthatic group
B. Apoenzyme
C. Holoenzyme
D. Zymogen
Right Answer: B. Apoenzyme
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Flowers emit fragrance to?
A. Purify air
B. Drive away flies
C. Attract insects
D. Perform all the above
Right Answer: C. Attract insects
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Flower less plants are termed as?
A. Cryptogams
B. Thallophytes
C. Bryophytes
D. Phanerogams
Right Answer: A. Cryptogams
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Which of the following is a good source of Vitamin ‘E’?
A. Ghee
B. Meat
C. Yellow Yolk
D. Fresh Vegetables
Right Answer: D. Fresh Vegetables
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The element which is required by the plant in large quantity?
A. Nitrogen
B. Calcium
C. Sulphur
D. Phosphorus
Right Answer: A. Nitrogen
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The method not used as a Biological control is?
A. Use of pesticides
B. Use of predators of a pest
C. Use of neem extracts
D. Pheromone traps
Right Answer: A. Use of pesticides
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