Read the given statements and select the correct option.
Statement 1: A primary myofilament is composed of a bundle of rod-like molecules of a protein myosin.
Statement 2: Myosin and actin together a form a contractile apparatus.

Options

A. Both statement 1 and 2 are correct.
B. Statement 1 is correct but statement 2 is incorrect
C. Statement 1 is incorrect but statement 2 is correct.
D. Both statement 1 and 2 are incorrect.

Explanation

To solve the question, we need to analyze the two statements provided and determine their correctness.

### Step-by-Step Solution:

1. **Understanding Statement 1**:
- The statement claims that "A primary myofilament is composed of a bundle of rod-like molecules of a protein myosin."
- Myofilaments are the filaments of myofibrils, which are the basic units of muscle fibers.
- Myosin is indeed a key component of myofilaments, specifically forming the thick filaments in muscle tissue.
- Therefore, this statement is **correct**.

2. **Understanding Statement 2**:
- The statement claims that "Myosin and actin together form a contractile apparatus."
- Actin and myosin are the two primary proteins involved in muscle contraction. They interact to form cross-bridges, which are essential for muscle contraction.
- The combination of actin and myosin is crucial for the functioning of the sarcomere, the basic unit of muscle contraction.
- Hence, this statement is also **correct**.

3. **Conclusion**:
- Since both statements are correct, we can conclude that the correct option is: **Option A: Both 1 and 2 are correct**.