Why Is It Necessary to Examine DNA from a Child's

Multiple Choice

Why is it necessary to examine DNA from a child's mother in order to determine paternity?
1) Approximately half of the bands in the child's DNA print result from maternal DNA sequences,therefore it is necessary to account for the presence of these bands when comparing the DNA to the potential fathers
2) Approximately half of the bands in the child's DNA print result from maternal DNA sequences,and it is in the child's best interest to confirm maternity as well as paternity.
3) Approximately half of the bands in the child's DNA print result from maternal DNA sequences,and it is cheaper to determine maternity than it is paternity.

A) 1
B) 2
C) 3
D) 1 and 2
E) All of these