Question

0. Myofibrils are made up of 1. Myosin and actin 2. Myosin and troponin 3. Actin and tropomyosin 4. All the above components

Answer 1

The myofibrils are made up of thick and thin myofilaments, which help give the muscle its striped appearance. The thick filaments are composed of myosin, and the thin filaments are predominantly actin, along with two other muscle proteins, tropomyosin and troponin.

SO OPTION D) ALL OF THE ABOVE IS ANSWER