Adisorder called "" is characterized by symptoms of extensive amnesia, wandering or traveling, and confusion about one's personal identity.

Dissociative fugue.

Explanation:

Dissociative fugue may be defined as a psychiatric disorder that may remain lasts for days, months or years. The symptoms of disease are grief, shame, depression and discomfort.

This disease is characterized by the extensive amnesia in which the person wanders or travels and may sometime develop personal's identity. The earlier memories return after the treatment of dissociative fugue.

Thus, the answer is dissociative fugue.

substitution is the answer in this case

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.