BCG BCG DNA & Genetic Genealogy 2

Question 1

What type of DNA is inherited from both parents but recombines each generation, making it useful for identifying relatives within approximately 5–6 generations?

Accepted Answer

Autosomal DNA

Answer

Autosomal DNA is inherited from both parents and undergoes recombination, making it effective for identifying relatives within roughly five to six generations.

Question 2

Which term describes the process of grouping DNA matches into clusters based on shared matches to identify likely common ancestors?

Accepted Answer

Clustering

Answer

Clustering organizes DNA matches into groups of individuals who share matches with each other, helping identify which ancestral line a match belongs to.

Question 3

What is a 'false positive' in the context of genetic genealogy matches?

Accepted Answer

A DNA segment that appears shared due to population endogamy or statistical noise rather than a true genealogical relationship

Answer

False positive matches occur when shared DNA segments reflect population patterns or statistical artifacts rather than a verifiable common ancestor.

Question 4

Under BCG standards, which statement best describes how genetic genealogy evidence should be cited?

Accepted Answer

Cite the testing company, kit number, test date, match name, and shared DNA amount

Answer

Proper citation of DNA evidence includes the testing company, kit number, test date, match identity, and shared segment data to enable verification.

Question 5

What does 'phasing' accomplish in the analysis of autosomal DNA results?

Accepted Answer

It assigns DNA segments to the maternal or paternal chromosome of the tested individual

Answer

Phasing assigns each DNA segment to either the maternal or paternal chromosome, clarifying which parent a match's shared DNA comes through.

(BCG) Board for the Certification of Genealogists Practice Test

(BCG) Board for the Certification of Genealogists Practice Test

BCG BCG DNA & Genetic Genealogy 2