Question

dna paternity testing
. child is 15, 21 for the d1s80 locus
. the 15 repeats came from one parent and the 21 repeats came from the other parent.
. if mom is 12, 15 and dad is 17, 21. then the dad could not be excluded, because he has the 21.
. but if dad was 13, 17, then he would be excluded, because he does not have the 21 repeat chromosome.
value: 5
is the alleged father included or excluded as the father of the child?
score: 20 / 105
a. included
b. excluded

Explanation:

Step1: Check each genetic locus

For each genetic locus, the child has two alleles, one from the mother and one from the father. The alleged - father must have at least one of the alleles that the child has.

Step2: Analyze D7S820 locus

The child has 8 and 9 alleles. The alleged - father has 8 and 9 alleles, so he is consistent at this locus.

Step3: Analyze D13S317 locus

The child has 11 and 12 alleles. The alleged - father has 11 and 12 alleles, so he is consistent at this locus.

Step4: Analyze D5S818 locus

The child has 11 and 11 alleles. The alleged - father has 11 and 11 alleles, so he is consistent at this locus.

Step5: Analyze D18S51 locus

The child has 15 and 18 alleles. The alleged - father has 18 and 18 alleles, so he is consistent at this locus.

Step6: Analyze D21S11 locus

The child has 29 and 32 alleles. The alleged - father has 28 and 29 alleles, so he is consistent at this locus.

Step7: Analyze D8S1179 locus

The child has 13 and 16 alleles. The alleged - father has 14 and 16 alleles, so he is consistent at this locus.

Step8: Analyze FGA locus

The child has 23 and 24 alleles. The alleged - father has 20 and 24 alleles, so he is consistent at this locus.

Step9: Analyze vWA locus

The child has 14 and 17 alleles. The alleged - father has 14 and 17 alleles, so he is consistent at this locus.

Step10: Analyze D3S1358 locus

The child has 16 and 17 alleles. The alleged - father has 16 and 18 alleles, so he is consistent at this locus.

Answer:

a. Included