. Autism is a neurological disorder thought to becaused by mutant alleles of one or more genes.Scientists had been wondering why the number ofchildren diagnosed as autistic increased dramaticallyin a decade, from 1 in 500 in 2002 to 1 in 88 in 2012.Researchers now think that they might have found atleast part of the answer: Men are fathering children atlater and later ages. A paper published in the journalNature in 2012 showed a correlation between paternalage and the incidence of autism; the age of the motherwas not a factor. How does this observation provide apossible explanation for the apparent increase in therate of autism?

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Communication

Communication is a method of transferring information between two persons or organisms. Communication is possible using mutually understood behaviors such as signs, symbols, or language. In the year 1980, S. F. Scudder proposed communication theory. According to his ideas, all living beings on the earth communicate, but the methods of communication differ. Communication skills are now part of soft skills.