Answer:
When calcium concentration increases during depolarization, it shifts the conformation of troponin and tropomyosin, and actin is able to associate with myosin. As calcium is taken up again by the sarcoplasmic reticulum the muscle cell relaxes.
In the deformed mice, somatic cells but not germ cells were mutated. The original mouse's germ cells were mutated.
with this option given I don't think there is an odd one
