estion (1 point) A person has familial Down syndrome 2n-45 (14,14q21,21). What proportion of his/her live- birth offspring would you predict to have Down syndrome if mated to someone without Down syndrome (ie 2n=46)? (For this question assume that Alternate and Adjacent-1 segration are equally likely, put Adjacent-2 segregation does not occur). 1 or all 3/4 2/3 1/2 1/3 1/4 1/6
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