When Examining a Mutant Mouse,you Notice That Its Skeletal Muscle

Multiple Choice

When examining a mutant mouse,you notice that its skeletal muscle looks very uniform,lacking in striations.To figure out what the mutation is in this mouse,you would begin by looking at

A) sarcomere organization.
B) the retention of calcium in the endoplasmic reticulum.
C) tendons.
D) the blood vessels in the muscles.
E) the sheath around muscles.