Undergraduate

Q. Which of the following is a characteristic of a stable ecosystem? (2023)
  • A. High biodiversity
  • B. Low productivity
  • C. Limited interactions
  • D. Constant change
Q. Which of the following is a characteristic of a Zener diode? (2019)
  • A. Used for rectification
  • B. Operates in reverse bias
  • C. Has a high forward voltage drop
  • D. Acts as a switch
Q. Which of the following is a characteristic of addition polymers? (2019)
  • A. Formed by condensation
  • B. Involves the elimination of small molecules
  • C. Monomers have double bonds
  • D. Decomposes easily
Q. Which of the following is a characteristic of adsorption? (2023)
  • A. It is a bulk phenomenon.
  • B. It is a surface phenomenon.
  • C. It occurs at high temperatures only.
  • D. It is always exothermic.
Q. Which of the following is a characteristic of all living organisms? (2023)
  • A. Ability to photosynthesize
  • B. Ability to move from one place to another
  • C. Ability to respond to stimuli
  • D. Ability to produce heat
Q. Which of the following is a characteristic of aromatic hydrocarbons? (2023)
  • A. They are saturated
  • B. They have a pleasant smell
  • C. They are highly reactive
  • D. They contain double bonds only
Q. Which of the following is a characteristic of asexual reproduction? (2019)
  • A. Involves two parents
  • B. Produces genetically identical offspring
  • C. Requires gametes
  • D. Occurs in higher organisms only
Q. Which of the following is a characteristic of brittle materials? (2020)
  • A. High ductility
  • B. Low tensile strength
  • C. Low elasticity
  • D. Fracture without significant deformation
Q. Which of the following is a characteristic of bryophytes? (2019)
  • A. Presence of true roots
  • B. Presence of xylem and phloem
  • C. Moist habitats
  • D. All of the above
Q. Which of the following is a characteristic of cross-linked polymers? (2023)
  • A. Flexible
  • B. Linear structure
  • C. High melting point
  • D. Low tensile strength
Q. Which of the following is a characteristic of dicots? (2022)
  • A. Single cotyledon
  • B. Net-like leaf venation
  • C. Scattered vascular bundles
  • D. Fibrous root system
Q. Which of the following is a characteristic of dicotyledons? (2019)
  • A. Two cotyledons
  • B. Parallel venation
  • C. Fibrous root system
  • D. Single flower part
Q. Which of the following is a characteristic of elastic materials? (2023)
  • A. They return to original shape after deformation
  • B. They permanently deform
  • C. They break easily
  • D. They are always brittle
Q. Which of the following is a characteristic of elastomers?
  • A. Brittle
  • B. Rigid
  • C. Elastic
  • D. Conductive
Q. Which of the following is a characteristic of essential oils? (2019)
  • A. Water-soluble
  • B. Volatile
  • C. Non-toxic
  • D. All of the above
Q. Which of the following is a characteristic of eukaryotic cells? (2019)
  • A. No nucleus
  • B. Circular DNA
  • C. Membrane-bound organelles
  • D. Binary fission
Q. Which of the following is a characteristic of genetically modified organisms (GMOs)? (2023)
  • A. They are always harmful to the environment
  • B. They contain genes from other species
  • C. They cannot reproduce
  • D. They are not regulated by any laws
Q. Which of the following is a characteristic of gibberellins? (2019)
  • A. Inhibition of seed germination
  • B. Promotion of flowering
  • C. Stimulation of leaf senescence
  • D. Inhibition of stem elongation
Q. Which of the following is a characteristic of ionic solids? (2020)
  • A. High electrical conductivity in solid state
  • B. High melting point
  • C. Low density
  • D. Malleable
Q. Which of the following is a characteristic of meristematic tissue? (2022)
  • A. It is differentiated
  • B. It has the ability to divide
  • C. It is dead
  • D. It is found in mature tissues
Q. Which of the following is a characteristic of multilayer adsorption? (2019)
  • A. Occurs at low pressures only
  • B. Described by the Langmuir isotherm
  • C. Described by the BET theory
  • D. Involves only physical adsorption
Q. Which of the following is a characteristic of organic compounds? (2021)
  • A. They contain carbon
  • B. They are always solid
  • C. They are ionic
  • D. They do not burn
Q. Which of the following is a characteristic of p-type semiconductors? (2022)
  • A. Excess electrons
  • B. Excess holes
  • C. High conductivity
  • D. Low melting point
Q. Which of the following is a characteristic of pathogenic microbes? (2019)
  • A. They are always beneficial
  • B. They can cause diseases
  • C. They are used in food production
  • D. They are harmless
Q. Which of the following is a characteristic of phototropism? (2019)
  • A. Growth towards light
  • B. Growth away from light
  • C. Uniform growth in all directions
  • D. Growth in response to gravity
Q. Which of the following is a characteristic of probiotics? (2022)
  • A. They are harmful bacteria
  • B. They promote gut health
  • C. They cause infections
  • D. They are not found in food
Q. Which of the following is a characteristic of prokaryotic cells? (2022)
  • A. Membrane-bound organelles
  • B. Nucleus
  • C. Circular DNA
  • D. Multicellular
Q. Which of the following is a characteristic of the kingdom Animalia? (2021)
  • A. Cell walls
  • B. Autotrophic nutrition
  • C. Multicellular and heterotrophic
  • D. Chlorophyll
Q. Which of the following is a characteristic of the kingdom Plantae? (2022)
  • A. Heterotrophic
  • B. Cellulose in cell walls
  • C. Unicellular
  • D. Motile
Q. Which of the following is a characteristic of the phylum Annelida? (2023)
  • A. Body is segmented
  • B. Presence of a shell
  • C. Radial symmetry
  • D. Exoskeleton
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