The term 'genotype' refers to the: MCQ with Answer and Explanation

The term 'genotype' refers to the:
A. Physical appearance of an organism
B. Number of chromosomes
C. Genetic constitution of an organism
D. Environmentally influenced traits
Answer: Option C
Solution (By JKExamLibrary)
Genotype is the set of alleles an individual possesses for a particular gene or trait (e.g., TT, Tt, tt). Phenotype is the observable characteristic. Karyotype is the chromosome complement.

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Practice More Biology Questions

Question #1
The type of ecological pyramid that can be inverted in a parasitic food chain is the:
A. Pyramid of energy
B. Pyramid of numbers
C. Pyramid of biomass
D. Pyramid of productivity

Correct Answer: Option B


Explanation:
A pyramid of numbers can be inverted when a single tree (producer) supports many herbivores, or many parasites live on a single host. Energy pyramids are always upright. Biomass pyramid can be inverted in aquatic systems.

This question belongs to: Science Biology
Question #2
Which of the following statements about pollination is INCORRECT?
A. Hydrophily occurs in terrestrial plants.
B. Anemophily is pollination by wind.
C. Zoophily involves animals.
D. Entomophily is pollination by insects.

Correct Answer: Option A


Explanation:
Hydrophily is pollination by water and occurs in aquatic plants like Vallisneria and Zostera. Terrestrial plants do not use water for pollination. All other statements are correct.

This question belongs to: Science Biology
Question #3
The vitamin that acts as an antioxidant and protects cell membranes from damage is:
A. Vitamin K
B. Vitamin A
C. Vitamin E
D. Vitamin C

Correct Answer: Option C


Explanation:
Vitamin E (tocopherol) is a lipid-soluble antioxidant that scavenges free radicals and prevents lipid peroxidation of cell membranes. Vitamin C is water-soluble antioxidant, A is for vision, K for clotting.

This question belongs to: Science Biology