The type of inheritance in which the phenotype of the offspring is intermediate between the two parents is called: MCQ with Answer and Explanation

The type of inheritance in which the phenotype of the offspring is intermediate between the two parents is called:
A. Codominance
B. Complete dominance
C. Incomplete dominance
D. Polygenic inheritance
Answer: Option C
Solution (By JKSSB Mock Tests)
Incomplete dominance occurs when neither allele is completely dominant, resulting in a heterozygous phenotype that is a blend (e.g., red × white snapdragons produce pink). Codominance shows both alleles fully expressed (e.g., AB blood type). Complete dominance shows one allele masking another. Polygenic inheritance involves multiple genes contributing to a continuous trait.

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Practice More Biology Questions

Question #1
The vitamin that is required for the synthesis of clotting factors is:
A. Vitamin E
B. Vitamin C
C. Vitamin K
D. Vitamin A

Correct Answer: Option C


Explanation:
Vitamin K is a cofactor for the enzyme γ-glutamyl carboxylase, which adds carboxyl groups to glutamic acid residues in clotting factors II, VII, IX, and X, allowing them to bind calcium and participate in coagulation. Deficiency leads to bleeding tendency.

This question belongs to: Science Biology
Question #2
The 'Blood-Brain Barrier' (BBB) is formed primarily by the tight junctions between the endothelial cells of capillaries in the brain and the surrounding:
A. Oligodendrocytes
B. Ependymal cells
C. Astrocytes
D. Microglia

Correct Answer: Option C


Explanation:
The Blood-Brain Barrier (BBB) is a highly selective semipermeable border that protects the brain from many substances in the blood. It is primarily formed by the tight junctions between the endothelial cells of the brain's capillaries. These endothelial cells are closely associated with the foot processes of astrocytes (a type of glial cell), which induce and maintain the tight junctions, restricting the passage of large molecules, toxins, and pathogens into the brain tissue.

This question belongs to: Science Biology
Question #3
The pigment that gives red color to tomatoes is:
A. Beta-carotene
B. Chlorophyll
C. Lycopene
D. Xanthophyll

Correct Answer: Option C


Explanation:
Lycopene is a red carotenoid pigment found in tomatoes, watermelon, and pink grapefruit. It is an antioxidant and not a precursor of vitamin A. Beta-carotene is orange and a provitamin A. Chlorophyll is green, xanthophyll yellow. Lycopene is concentrated during ripening as chlorophyll degrades.

This question belongs to: Science Biology