NEET 2026
- Exam
- NEET
- Year
- 2026
- Subject
- Zoology
- Chapter
- Principles of Inheritance and Variation
NEET 2026 · Zoology · Principles of Inheritance and Variation
Match List I with List II : List I List II A. Incomplete dominance...
Match List I with List II :
Choose the correct answer from the options given below :
| List I | List II |
|---|---|
| A. Incomplete dominance | I. Human skin colour |
| B. Co-dominance | II. Inheritance of flower colour in Antirrhinum sp. |
| C. Pleiotropy | III. Phenylketonuria disease in humans |
| D. Polygenic inheritance | IV. ABO blood groups |
Choose the correct answer from the options given below :
Options
- AA-II, B-IV, C-III, D-I
- BA-I, B-III, C-II, D-IV
- CA-IV, B-III, C-II, D-I
- DA-II, B-I, C-III, D-IV
Correct answer
A. A-II, B-IV, C-III, D-I
Step-by-step solution
Incomplete dominance is observed in the inheritance of flower colour in Antirrhinum sp. (snapdragon), where the heterozygous phenotype is intermediate between the two homozygous phenotypes.
Co-dominance is exhibited by ABO blood groups in humans, where both alleles and express themselves fully in a heterozygous individual.
Pleiotropy occurs when a single gene influences multiple phenotypic traits. Phenylketonuria is an example of pleiotropy in humans, where a single gene mutation leads to mental retardation and a reduction in hair and skin pigmentation.
Polygenic inheritance involves traits controlled by three or more genes, such as human skin colour.
Therefore, the correct matching is A-II, B-IV, C-III, D-I.
Answer: A-II, B-IV, C-III, D-I
Co-dominance is exhibited by ABO blood groups in humans, where both alleles and express themselves fully in a heterozygous individual.
Pleiotropy occurs when a single gene influences multiple phenotypic traits. Phenylketonuria is an example of pleiotropy in humans, where a single gene mutation leads to mental retardation and a reduction in hair and skin pigmentation.
Polygenic inheritance involves traits controlled by three or more genes, such as human skin colour.
Therefore, the correct matching is A-II, B-IV, C-III, D-I.
Answer: A-II, B-IV, C-III, D-I