Match List I with List II :List - I Type of Inheritance List – II Example A. Incomplete dominance i. Blood groups in human B. Co-dominance ii. Flower colour in Antirrhinum C. Pleiotropy iii. Skin colour in human D. Polygenic inheritance iv. Phenylketonuria
Choose the correct answer from the options given below :
| List - I Type of Inheritance | List – II Example | ||
| A. | Incomplete dominance | i. | Blood groups in human |
| B. | Co-dominance | ii. | Flower colour in Antirrhinum |
| C. | Pleiotropy | iii. | Skin colour in human |
| D. | Polygenic inheritance | iv. | Phenylketonuria |
- A-III, B-IV, C-II, D-I
- A-II, B-I, C-IV, D-III
- A-II, B-III, C-I, D-IV
- A-IV, B-I, C-III, D-II
The Correct Option is B
Solution and Explanation
A. Incomplete dominance - II. Flower colour in Antirrhinum: In incomplete dominance, the heterozygote shows an intermediate phenotype (e.g., pink flowers from red and white parents).
B. Co-dominance - I. Blood groups in humans: In co-dominance, both alleles are expressed in the heterozygote (e.g., AB blood type).
C. Pleiotropy - IV. Phenylketonuria: Pleiotropy refers to a single gene affecting multiple traits or symptoms.
D. Polygenic inheritance - III. Skin colour in humans: Polygenic inheritance involves multiple genes contributing to a single trait. Skin color is a classic example of polygenic inheritance.
Therefore, the correct matches are: A-II, B-I, C-IV, and D-III. This corresponds to option (2).
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