Who introduced the binomial nomenclature system? MCQ with Answer and Explanation

Who introduced the binomial nomenclature system?
A. Robert Hooke
B. Carolus Linnaeus
C. Charles Darwin
D. Gregor Mendel
Answer: Option B
Solution (By JKSSB Mock Tests)
Carolus Linnaeus, a Swedish botanist, introduced the binomial nomenclature system in his book 'Species Plantarum' (1753). This system assigns a two-part scientific name—genus and species—to every organism. For example, Homo sapiens. Darwin proposed natural selection, Hooke discovered cells, and Mendel laid the foundation of genetics. Linnaeus is also known as the father of taxonomy. Binomial names are universally accepted and italicized in print.

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Practice More Biology Questions

Question #1
Which of the following is a defining characteristic of meiosis?
A. Crossing over occurs
B. Produces identical daughter cells
C. Involves one division
D. Produces diploid cells

Correct Answer: Option A


Explanation:
Meiosis is characterized by two successive divisions producing haploid gametes, and involves genetic recombination through crossing over during prophase I. Mitosis produces identical diploid cells with one division. Crossing over and independent assortment generate genetic variation. Therefore, crossing over is unique to meiosis.

This question belongs to: Science Biology
Question #2
The vitamin that functions as an antioxidant and is also known as tocopherol is:
A. Vitamin E
B. Vitamin D
C. Vitamin A
D. Vitamin C

Correct Answer: Option A


Explanation:
Vitamin E (tocopherol) is a fat-soluble antioxidant that protects cell membranes from lipid peroxidation. Vitamin C is water-soluble antioxidant, A is for vision, D for calcium.

This question belongs to: Science Biology
Question #3
Which of the following is a biopesticide?
A. DDT
B. Bacillus thuringiensis
C. Malathion
D. Lindane

Correct Answer: Option B


Explanation:
Bacillus thuringiensis (Bt) is a bacterium producing crystal (Cry) proteins toxic to specific insect larvae, used as a biological insecticide. DDT, malathion, and lindane are synthetic chemical pesticides. Biopesticides are eco-friendly, target-specific, and biodegradable. Bt formulations are used in organic farming. The cry gene is also used in GM crops like Bt cotton.

This question belongs to: Science Biology