When an autosome (chromosome other than those that differentiate sex; they are numbered rather than an X or Y) passed from a parent to child has an abnormality (aberration). A common example of this is in Down Syndrome. This is where the child receives an extra chromosome on trait #21, known as trisomy 21.

Alleydog Psychology Trivia Question - Are You Game?


Question: Flooding and systematic desensitization are two behavior-therapy methods. They are based on the principle of


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