Q. Which of the following is a method used in gene therapy? (2023)
A.
CRISPR-Cas9
B.
Polymerase chain reaction
C.
Gel electrophoresis
D.
DNA sequencing
Show solution
Solution
CRISPR-Cas9 is a revolutionary method used for gene editing and is a key tool in gene therapy.
Correct Answer:
A
— CRISPR-Cas9
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Q. Which of the following is a method used in the production of genetically modified crops? (2020)
A.
Polymerase chain reaction
B.
Microinjection
C.
Electrophoresis
D.
Chromatography
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Solution
Microinjection is a method used to introduce foreign DNA into plant cells to create genetically modified crops.
Correct Answer:
B
— Microinjection
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Q. Which of the following is a method used in the production of insulin? (2018)
A.
Fermentation
B.
Photosynthesis
C.
Transcription
D.
Translation
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Solution
Insulin is produced using fermentation processes involving genetically modified bacteria that can synthesize insulin.
Correct Answer:
A
— Fermentation
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Q. Which of the following is a micronutrient? (2022)
A.
Calcium
B.
Magnesium
C.
Copper
D.
Nitrogen
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Solution
Copper is classified as a micronutrient, required in trace amounts for plant growth and development.
Correct Answer:
C
— Copper
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Q. Which of the following is a modified leaf in flowering plants? (2020)
A.
Stamen
B.
Petal
C.
Sepal
D.
Bract
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Solution
Bracts are modified leaves that can be found associated with flowers.
Correct Answer:
D
— Bract
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Q. Which of the following is a modified leaf that forms part of the flower? (2022)
A.
Bract
B.
Node
C.
Internode
D.
Petiole
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Solution
A bract is a modified leaf that can be found at the base of a flower or inflorescence.
Correct Answer:
A
— Bract
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Q. Which of the following is a modified stem? (2019)
A.
Tuber
B.
Rhizome
C.
Bulb
D.
All of the above
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Solution
All of the options listed (tuber, rhizome, and bulb) are examples of modified stems.
Correct Answer:
D
— All of the above
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Q. Which of the following is a monosaccharide?
A.
Sucrose
B.
Lactose
C.
Glucose
D.
Starch
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Solution
Glucose is a monosaccharide, while sucrose and lactose are disaccharides, and starch is a polysaccharide.
Correct Answer:
C
— Glucose
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Q. Which of the following is a multicellular organism? (2021)
A.
Amoeba
B.
Paramecium
C.
Hydra
D.
Bacteria
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Solution
Hydra is a multicellular organism, while the others are unicellular.
Correct Answer:
C
— Hydra
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Q. Which of the following is a national festival in India?
A.
Diwali
B.
Holi
C.
Independence Day
D.
Eid
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Solution
Independence Day is a national festival celebrated on August 15.
Correct Answer:
C
— Independence Day
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Q. Which of the following is a natural polymer?
A.
Nylon
B.
Cellulose
C.
Polystyrene
D.
Polyethylene
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Solution
Cellulose is a natural polymer found in the cell walls of plants.
Correct Answer:
B
— Cellulose
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Q. Which of the following is a natural source of caffeine?
A.
Tea leaves
B.
Sugar cane
C.
Corn
D.
Rice
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Solution
Tea leaves are a natural source of caffeine, commonly consumed in beverages.
Correct Answer:
A
— Tea leaves
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Q. Which of the following is a natural source of omega-3 fatty acids? (2023)
A.
Flaxseed oil
B.
Coconut oil
C.
Palm oil
D.
Corn oil
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Solution
Flaxseed oil is a rich natural source of omega-3 fatty acids, beneficial for heart health.
Correct Answer:
A
— Flaxseed oil
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Q. Which of the following is a natural sweetener derived from plants?
A.
Aspartame
B.
Stevia
C.
Saccharin
D.
Sucralose
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Solution
Stevia is a natural sweetener extracted from the leaves of the Stevia rebaudiana plant.
Correct Answer:
B
— Stevia
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Q. Which of the following is a natural sweetener?
A.
Aspartame
B.
Sucralose
C.
Stevia
D.
Saccharin
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Solution
Stevia is a natural sweetener derived from the leaves of the Stevia plant.
Correct Answer:
C
— Stevia
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Q. Which of the following is a necessary condition for a function to be continuous at a point?
A.
The function must be defined at that point
B.
The function must be differentiable at that point
C.
The function must be bounded
D.
The function must be increasing
Show solution
Solution
A function must be defined at a point to be continuous there.
Correct Answer:
A
— The function must be defined at that point
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Q. Which of the following is a necessary condition for a number to be a multiple of 18?
A.
It must be even.
B.
It must be a multiple of 9.
C.
It must be a multiple of 3.
D.
It must be a multiple of 6.
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Solution
Since 18 = 2 × 9, being a multiple of 9 is necessary for a number to be a multiple of 18.
Correct Answer:
B
— It must be a multiple of 9.
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Q. Which of the following is a necessary condition for a number to be divisible by 7?
A.
The last digit must be 0
B.
The number must be even
C.
Double the last digit and subtract it from the rest of the number
D.
The sum of the digits must be divisible by 7
Show solution
Solution
To check for divisibility by 7, you can double the last digit and subtract it from the rest of the number; if the result is divisible by 7, then the original number is also divisible by 7.
Correct Answer:
C
— Double the last digit and subtract it from the rest of the number
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Q. Which of the following is a necessary condition for f(x) to be continuous at x = a?
A.
f(a) exists
B.
lim x->a f(x) exists
C.
lim x->a f(x) = f(a)
D.
All of the above
Show solution
Solution
All conditions must be satisfied for f(x) to be continuous at x = a.
Correct Answer:
D
— All of the above
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Q. Which of the following is a noble gas?
A.
Neon
B.
Argon
C.
Krypton
D.
All of the above
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Solution
All of the options listed are noble gases, which are found in group 18 of the p-block.
Correct Answer:
D
— All of the above
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Q. Which of the following is a non-cellular living entity? (2023)
A.
Bacteria
B.
Fungi
C.
Virus
D.
Protozoa
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Solution
Viruses are non-cellular entities that require a host cell to replicate.
Correct Answer:
C
— Virus
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Q. Which of the following is a non-communicable disease? (2022)
A.
Influenza
B.
Diabetes
C.
Hepatitis
D.
Tuberculosis
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Solution
Diabetes is classified as a non-communicable disease.
Correct Answer:
B
— Diabetes
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Q. Which of the following is a non-flowering plant? (2020)
A.
Rose
B.
Pine
C.
Sunflower
D.
Tulip
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Solution
Pine trees are gymnosperms and are considered non-flowering plants as they do not produce flowers.
Correct Answer:
B
— Pine
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Q. Which of the following is a non-living component of an ecosystem? (2022)
A.
Plants
B.
Animals
C.
Water
D.
Bacteria
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Solution
Water is a non-living component of an ecosystem, while plants, animals, and bacteria are living components.
Correct Answer:
C
— Water
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Q. Which of the following is a non-living component of the ecosystem? (2022)
A.
Plants
B.
Animals
C.
Bacteria
D.
Water
Show solution
Solution
Water is a non-living component of the ecosystem, while plants, animals, and bacteria are living components.
Correct Answer:
D
— Water
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Q. Which of the following is a non-Newtonian fluid?
A.
Water
B.
Glycerin
C.
Cornstarch in water
D.
Mercury
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Solution
Cornstarch in water exhibits non-Newtonian behavior, as its viscosity changes with the applied shear stress.
Correct Answer:
C
— Cornstarch in water
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Q. Which of the following is a non-renewable resource?
A.
Wind Energy
B.
Natural Gas
C.
Hydropower
D.
Geothermal Energy
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Solution
Natural gas is a non-renewable resource, as it is formed from fossilized organic materials over millions of years.
Correct Answer:
B
— Natural Gas
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Q. Which of the following is a non-renewable source of energy? (2020)
A.
Solar
B.
Wind
C.
Coal
D.
Hydro
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Solution
Coal is considered a non-renewable source of energy as it takes millions of years to form.
Correct Answer:
C
— Coal
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Q. Which of the following is a non-vascular plant? (2019)
A.
Fern
B.
Moss
C.
Pine tree
D.
Flowering plant
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Solution
Mosses are non-vascular plants, meaning they do not have specialized tissues for transporting water and nutrients.
Correct Answer:
B
— Moss
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Q. Which of the following is a non-volatile storage device?
A.
RAM
B.
Cache
C.
SSD
D.
CPU
Show solution
Solution
An SSD (Solid State Drive) is a non-volatile storage device that retains data even when powered off.
Correct Answer:
C
— SSD
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