Question

Striations of muscle are due to alternating bands of dark and light. The dark band is due to the _________ myofilaments and the light band is due to _________myofilaments.

Answer 1

The dark band in muscle striations is due to the thick (myosin) myofilaments, while the light band is due to the thin (actin) myofilaments.

Step-by-step explanation:

The dark band in muscle striations is due to the thick (myosin) myofilaments, while the light band is due to the thin (actin) myofilaments.