From what I know, schizophrenia is a male dominant gene, just like color blindness, male pattern baldness, and stuttering. Males have a 75% chance of getting these diseases, so I'd estimate it's not very likely the girls will inherit it.
Incorrect. According to the epidemialogy section in wikipedia:
Schizophrenia occurs equally in males and females, although typically appears earlier in menthe peak ages of onset are 2028 years for males and 2632 years for females.[1] Onset in childhood is much rarer,[187] as is onset in middle- or old age.[188] The lifetime prevalence of schizophreniathe proportion of individuals expected to experience the disease at any time in their livesis commonly given at 1%. However, a 2002 systematic review of many studies found a lifetime prevalence of 0.55%.[3]
There has been a recent theory proposed that autism and schizophrenia are opposite ends of the same disorder since schizophrenia has a high association with a pair of sequences in the genome where one copy has been duplicated, whereas autism has a high association with the same pair of sequences where one copy has been deleted.