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
Which organ of the body never rests?
A. Liver
B. Eyes
C. Pancreas
D. Heart
Right Answer: D. Heart
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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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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 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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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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Ascent of sap in plants takes place through?
A. Xylem
B. Pith
C. Phloem
D. Cambium
Right Answer: A. Xylem
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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 best example of Polyembryony is?
A. Citrus
B. Cocoa
C. Cycas
D. Capsicum
Right Answer: A. Citrus
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Insectivorous plants grow in soil deficient in?
A. Water
B. Magnesium
C. Nitrogen
D. Calcium
Right Answer: C. Nitrogen
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Which of the following is not included in the Technology Mission?
A. Vegetables
B. Oil seeds
C. Maize
D. Pulses
Right Answer: A. Vegetables
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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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The smallest flowering plant is?
A. Lemma
B. Ficus
C. Azolla
D. Wolffia
Right Answer: D. Wolffia
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Chromosome end is called?
A. Telomere
B. Centromere
C. Satellite
D. Maramere
Right Answer: A. Telomere
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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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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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Eyes of potato are useful for?
A. Vegetative propagation
B. Nutrition
C. Reproduction
D. Respiration
Right Answer: A. Vegetative propagation
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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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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 cuticle is absent in?
A. Stem
B. Fruit
C. Leaf
D. Root
Right Answer: D. Root
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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 biomes has been increased in area by human activities?
A. Savanna
B. Grassland
C. Desert
D. Coniferous forest
Right Answer: C. Desert
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Taxonomy is a science that deals with?
A. Anatomy
B. Classification
C. Economic uses
D. Morphology
Right Answer: B. Classification
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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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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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Which of the following is the sweetest sugar?
A. Fructose
B. Maltose
C. Sucrose
D. Glucose
Right Answer: A. Fructose
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Cuscuta is a?
A. Partial root parasite
B. Complete root parasite
C. Partial stem parasite
D. Complete stem parasite
Right Answer: D. Complete stem parasite
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Respiration is?
A. Oxidation
B. Amination
C. Reduction
D. Hydrolysis
Right Answer: A. Oxidation
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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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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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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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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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The branch of agriculture which deals with the feeding, shelter, health and breeding of the domestic animals is called?
A. Veterinary Science
B. Animal husbandry
C. Dairy Science
D. Poultry
Right Answer: A. Veterinary Science
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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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Plants get water through the roots because?
A. Viscosity
B. Elasticity
C. Capillarity
D. Photosynthesis
Right Answer: C. Capillarity
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Which of the following element is obtained from the sea algae?
A. Vanadium
B. Iodine
C. Argon
D. Sulphur
Right Answer: B. Iodine
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Which of the plant products is used in leather industry?
A. Resin
B. Latex
C. Tannin
D. Mucilage
Right Answer: C. Tannin
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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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The book “Origin of Species” was written by?
A. Linnaeus
B. Lamarck
C. Mendel
D. Darwin
Right Answer: D. Darwin
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Lac is produced from?
A. An insect
B. A cat
C. A muskrat
D. A tree
Right Answer: A. An insect
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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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In cauliflower plant the the useful part is?
A. Young inflorescence
B. Root
C. Leaves
D. Underground stem
Right Answer: A. Young inflorescence
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Fiber diet includes?
A. Fats
B. Cellulose
C. Glycogen
D. Proteins
Right Answer: B. Cellulose
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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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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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What is used as biofertilizer?
A. Ammonia
B. Urea
C. Azolla
D. Bagasse
Right Answer: A. Ammonia
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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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Production of alcohol from organic compounds by microorganism is known as?
A. Anaerobic respiration
B. Aerobic respiration
C. Combustion
D. Fermentation
Right Answer: D. Fermentation
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Number of ATP molecules produced by each NADPH is?
A. 3
B. 2
C. 1
D. 5
Right Answer: A. 3
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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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The tallest plant in the world is?
A. Pterocarpus
B. Eucalyptus
C. Tectona
D. Polyalthia
Right Answer: B. Eucalyptus
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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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Which of the following branches deals with the interactions of same species of living organism with their non living environment?
A. Ecology
B. Autecology
C. Palaentology
D. Synecology
Right Answer: A . Ecology
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Plants which flower only once in their life time are known as?
A. Monocarpic
B. Monogeneric
C. Polycarpic
D. Monogamous
Right Answer: A. Monocarpic
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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 edible part of Cabbage is?
A. Vegetative bud
B. Fruit
C. Inflorescence
D. Condensed flower
Right Answer: A. Vegetative bud
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Which of the following is not one of the important step in processing tea leaves?
A. Drying
B. Rolling
C. Hard wood
D. Fermenting
Right Answer: D. Fermenting
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Who discovered Cholera germs?
A. Dresser
B. Rene Laennec
C. Robert Koch
D. Hansen
Right Answer: C. Robert Koch
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Salt-loving plants are known as?
A. Glycophytes
B. Halophytes
C. Xerophytes
D. Mesophytes
Right Answer: B. Halophytes
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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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From which part of Onion plant we get morphine?
A. Bark
B. Leaves
C. Fruit coat
D. Stem
Right Answer: C. Fruit coat
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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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What causes common cold?
A. Fungi
B. Protozoa
C. Virus
D. Bacteria
Right Answer: C. Virus
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The most abundant enzyme in the living world is?
A. DNAse
B. Rubisco
C. Zymase
D. Invertase
Right Answer: B. Rubisco
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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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Bio-diesel is mostly produced by?
A. Liliaceae
B. Malvaceae
C. Myrtaceae
D. Euphorbiaaceae
Right Answer: D. Euphorbiaaceae
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Main function of lenticel is?
A. Transpiration
B. Guttation
C. Bleeding
D. Gaseous exchange
Right Answer: D. Gaseous exchange
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In coriander, the useful parts are?
A. Leaves and dried fruits
B. Roots and leaves
C. Flower and dried fruits
D. Leaves and flower
Right Answer: A. Leaves and dried fruits
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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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From the bark of which plant is quinine extracted?
A. Cedar
B. Neem
C. Cinchona
D. Eucalyptus
Right Answer: C. Cinchona
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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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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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Suagrcane plant are usually propagated by vegetative means because?
A. it is possible to maintain genetic quality
B. The incidence of disease may be reduced
C. They do not produce seed
D. None of the above
Right Answer: C. They do not produce seed
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NADH from the Kerbs Cycle is approximately equal to?
A. 2 ATP
B. 3 ATP
C. 4 ATP
D. 6 ATP
Right Answer: B. 3 ATP
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In cactus, the spines are the modified?
A. Leave
B. Stem
C. Bud
D. Stipulse
Right Answer: A. Leaves
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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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The curcumin is isolated from?
A. Garlic
B. Turmeric
C. Sunflower
D. Rose flower
Right Answer: B. Turmeric
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Two richest known sources of edible protein are?
A. Soyabean and groundnut
B. Meat and eggs
C. Milk and leafy vegetables
D. Some algae and other micro-organism
Right Answer: B. Meat and eggs
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Which of the following statement is true?
A. Whole grain cereals and pulses are more nutritious
B. Breakfast cereals are nutrients dense
C. Dehusked cereals and pulses are more nutrious
D. Processed cereals products are nutrient dense
Right Answer: A. Whole grain cereals and pulses are more nutritious
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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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Ginger is a stem and not a root because?
A. It lacks chlorophyll
B. It stores food material
C. It has notes and internodes
D. It grows horizontally in the soil
Right Answer: C. It has notes and internodes
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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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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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Which zone of the lake ecosystem consists of phyto and zoo planktons?
A. Littoral zone
B. Limnetic zone
C. Profundal zone
D. None of these
Right Answer: B. Limnetic zone
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Which of these is a modified underground stem?
A. Potato
B. Sweet-potato
C. Carrot
D. Radish
Right Answer: A. Potato
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Which wood will become useless soon after exposing in the open air?
A. Wet wood
B. Soft wood
C. Hard wood
D. Fibrous wood
Right Answer: A. Wet wood
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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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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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Penicillin is extracted from?
A. Lichen
B. Fungus
C. Yeast
D. Algae
Right Answer: B. Fungus
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Bakeries use yeast in bread-making because it?
A. Enhances the food values
B. Makes the bread hard
C. Makes the bread soft and spongy
D. Keeps the bread fresh
Right Answer: C. Makes the bread soft and spongy
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Vascular cryptogams are?
A. Bryophytes
B. Spermatophytes
C. Pteridophyte
D. None of these
Right Answer: C. Pteridophyte
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Chlorosis in plants occur due to?
A. High sunlight intensity
B. Low sunlight intensity
C. Absorption of yellow pigment from the soil
D. Deficiency of Mg and Fe in the soil
Right Answer: D. Deficiency of Mg and Fe in the soil
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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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The tallest and thickest type of grass is?
A. Fodder
B. Bamboo
C. Lichens
D. Alfalfa
Right Answer: B. Bamboo
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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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The vitamin which cannot be had from any vegetable is?
A. Vitamin E
B. Vitamin B
C. Vitamin C
D. Vitamin D
Right Answer: D. Vitamin D
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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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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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Which of the following is an insectivorous plant?
A. Drosera
B. Orobanche
C. Rafflesia
D. Balanophora
Right Answer: A. Drosear
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Bioderadeable wastes can usually be converted into useful substances with the help of?
A. Bacteria
B. Viruses
C. Nuclear proteins
D. Radioactive substances
Right Answer: A. Bacteria
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The part of the flower that can carry out photosynthesis is?
A. Gynoecium
B. Corolla
C. Calyx
D. Androecium
Right Answer: C. Calyx
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