Body Fluids and CirculationMedium
Question
Match List I with List II :
| 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
A.A-II, B-IV, C-III, D-I
B.A-I, B-III, C-II, D-IV
C.A-I, B-IV, C-III, D-II
D.A-II, B-I, C-III, D-IV
Solution
Sol. [Key Concept: Matching biological terms with examples]
Inheritance of flower colour in snapdragon (Antirrhinum sp.) is an example of incomplete dominance.
ABO blood groups exhibit codominance in case of individuals having AB blood group $\left( I^{A}I^{B} \right)$
Phenylketonuria in humans is an example of pleiotropy since the gene responsible for it leads to multiple phenotypic effects.
Human skin colour is controlled by three pairs of non allelic genes, hence it is an example of polygenic inheritance.
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