3. Forensic Biology

Mixture Analysis — Quiz

Test your understanding of mixture analysis with 5 practice questions.

Practice Questions

Question 1

Which parameter in continuous probabilistic genotyping models represents the relative DNA contribution of each contributor?

Question 2

In a two-person mixture, an allele shows peak heights of 700 RFU (major contributor) and 300 RFU (minor contributor). What is the mixture proportion $m$ for the major contributor?

Question 3

If the allele drop-out probability at a locus is $p_d=0.15$, what is the probability that exactly one allele of a heterozygous genotype drops out?

Question 4

Why is modeling stutter peaks essential in STR mixture interpretation using probabilistic genotyping?

Question 5

Which statement distinguishes a semi-continuous probabilistic genotyping model from a fully continuous model?