You Are a Graduate Student Researching the Function of Muscles

Multiple Choice

You are a graduate student researching the function of muscles.You induce a mutation that eliminates titin.Which is the most likely direct outcome for a mouse with this mutation?

A) Actin fibers will not form in smooth muscle.
B) Myosin heads will not bind.
C) The sarcoplasmic reticulum will not be able to release calcium.
D) Sarcomeres will not hold their structure.
E) Skeletal muscles will not be able to relax.