Select the correct traits (A - D) chosen by Mendel.
`{:("Characters in a pod of Pisum sativum","Dominant","Recessive"),("1. Colour",P,Q),("2. Shape",R,S):}`
(a) `{:(P,Q,R,S),("Yellow","Green","Inflated","Constricted"):}`
(b) `{:(P,Q,R,S),("Green","Yellow","Constricted","Inflated"):}`
(c) `{:(P,Q,R,S),("Green","Yellow","Inflated","Constricted"):}`
(d) `{:(P,Q,R,S),("Yellow","Green","Constricted","Inflated"):}`

Options

A. `{:(P,Q,R,S),("Yellow","Green","Inflated","Constricted"):}`
B. `{:(P,Q,R,S),("Green","Yellow","Constricted","Inflated"):}`
C. `{:(P,Q,R,S),("Green","Yellow","Inflated","Constricted"):}`
D. `{:(P,Q,R,S),("Yellow","Green","Constricted","Inflated"):}`

Answer

To solve the question regarding the traits selected by Mendel for the pod of Pisum sativum, we can follow these steps:

### Step 1: Identify the Traits
Mendel studied several traits in pea plants, including the color and shape of the pods. The two traits we need to focus on are:
- **Color of the pod**
- **Shape of the pod**

### Step 2: Determine Dominant and Recessive Traits
Based on Mendel's findings:
- For **Color**:
- **Dominant Trait (P)**: Green
- **Recessive Trait (Q)**: Yellow

- For **Shape**:
- **Dominant Trait (R)**: Inflated
- **Recessive Trait (S)**: Constricted

### Step 3: Match Traits with Options
Now, we need to analyze the given options to find the correct combination of traits:
1. **Option (a)**: Yellow (Q), Green (P), Inflated (R), Constricted (S)
2. **Option (b)**: Green (P), Yellow (Q), Constricted (S), Inflated (R)
3. **Option (c)**: Green (P), Yellow (Q), Inflated (R), Constricted (S)
4. **Option (d)**: Yellow (Q), Green (P), Constricted (S), Inflated (R)

### Step 4: Eliminate Incorrect Options
- **Option (a)** is incorrect because it lists Yellow as dominant.
- **Option (b)** is incorrect because it lists Constricted as dominant.
- **Option (d)** is incorrect because it lists Yellow as dominant.

### Step 5: Identify the Correct Option
- **Option (c)** is correct as it lists:
- Green (P) as dominant for color
- Yellow (Q) as recessive for color
- Inflated (R) as dominant for shape
- Constricted (S) as recessive for shape

### Conclusion
The correct traits chosen by Mendel for the pod of Pisum sativum are:
- **Color**: Green (Dominant), Yellow (Recessive)
- **Shape**: Inflated (Dominant), Constricted (Recessive)

Thus, the correct answer is **Option (c)**: `{:(P,Q,R,S),("Green","Yellow","Inflated","Constricted")}`.

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