"Z" disc layer in insects found in

A. Tracheoblast

B. Sinus

C. Neurons

D. Muscles

Answer: Option D

Solution(By Examveda Team)

"Z" disc layer in insects found in Muscles.
Z-discs delineate the lateral borders of sarcomeres and are the smallest functional units in striated muscle. The z-line appears in between the I-bands as a dark line that anchors the actin myofilaments.
The core of a Z-disc consists of actin filaments coming from adjacent sarcomeres which are crosslinked by α actinin molecules.