BCG BCG DNA & Genetic Genealogy

Question 1

Which type of DNA test is most useful for tracing a direct paternal line in genealogical research?

Accepted Answer

Y-DNA

Answer

Autosomal DNA

Answer

Mitochondrial DNA

Answer

X-DNA

Question 2

What does the term 'segment triangulation' refer to in genetic genealogy?

Accepted Answer

Confirming that three or more matches share identical DNA segments on the same chromosome region from a common ancestor

Answer

Comparing mitochondrial haplogroups

Answer

Measuring the total length of shared autosomal DNA

Answer

Identifying X-DNA inheritance patterns

Question 3

Which BCG standard requires that DNA evidence be corroborated by documentary evidence when making identity claims?

Accepted Answer

The Genealogical Proof Standard

Answer

The Reasonably Exhaustive Research Standard

Answer

The Source Citation Standard

Answer

The Client Disclosure Standard

Question 4

What is a 'centimorgan' (cM) used to measure in genetic genealogy?

Accepted Answer

The length of shared DNA segments between two individuals

Answer

The number of generations between two relatives

Answer

The mutation rate of mitochondrial DNA

Answer

The number of SNPs tested on a microarray

Question 5

Which DNA testing company database is the largest, providing the most matches for genealogical research as of recent years?

Accepted Answer

AncestryDNA

Answer

23andMe

Answer

FamilyTreeDNA

Answer

MyHeritage DNA

Question 6

In BCG-level research, how should a genealogist handle a DNA match that contradicts documented pedigree relationships?

Accepted Answer

Analyze both sources, resolve the conflict using additional evidence, and document the reasoning

Answer

Discard the DNA evidence as unreliable

Answer

Accept the DNA evidence and discard documentary evidence

Answer

Report the discrepancy only to the client and not in the formal report