DNA Paternity Testing Analysis

The video tutorial explains how DNA is used in paternity testing, focusing on short tandem repeats (STRs) in DNA. It walks through an example involving two alleged fathers, a mother, and a child, analyzing five loci to determine the child's paternity. The analysis rules out one alleged father and suggests the other could be the father. The tutorial concludes with a summary of the findings.

What is the primary genetic feature used in DNA paternity testing?

• Short tandem repeats

• Single nucleotide polymorphisms

• Y-chromosome analysis

• Mitochondrial DNA

In the first locus, which repeat numbers did the child inherit?

• 29 and 31

• 30 and 31

• 28 and 31

• 28 and 30

Why was alleged father one ruled out in the second locus?

• He did not have the 9 allele

• He did not have the 12 allele

• He did not have the 11 allele

• He did not have the 10 allele

Which allele did the child inherit from the mother in the third locus?

• 14

• 13

• 16

• 15

In the fourth locus, which alleged father could have contributed the 9 allele?

• Alleged father one

• Neither alleged father

• Alleged father two

• Both alleged fathers

What is the significance of the 16 allele in the third locus?

• It was not present in the child

• It was inherited from the mother

• It was inherited from alleged father one

• It was inherited from alleged father two

What was the repeat number combination for the child in the fifth locus?

• 14 and 15

• 14 and 16

• 14 and 17

• 15 and 16

Which alleged father was ultimately ruled out based on the loci analysis?

• Alleged father two

• Neither alleged father

• Both alleged fathers

• Alleged father one

How many loci were analyzed to determine the paternity?

• Four

• Six

• Five

• Three

What conclusion was drawn from the analysis of the five loci?

• Both alleged fathers could be the father

• Neither alleged father is the father

• Alleged father two is the father

• Alleged father one is the father