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Tracking SNPs Back in Time

Researchers led by Hakon Hakonarson at The Children's Hospital of Philadelphia used a genome-wide association study to follow up on a SNP previously linked to obeisty in Caucasians. In their study, published today in PLoS ONE, they looked at common variants among both Caucasian and African American children and found one SNP common to both and one common only to African Americans. The second SNP, they write, might capture the "ancestral origin" of the variation.

The Scan

Fertility Fraud Found

Consumer genetic testing has uncovered cases of fertility fraud that are leading to lawsuits, according to USA Today.

Ties Between Vigorous Exercise, ALS in Genetically At-Risk People

Regular strenuous exercise could contribute to motor neuron disease development among those already at genetic risk, Sky News reports.

Test Warning

The Guardian writes that the US regulators have warned against using a rapid COVID-19 test that is a key part of mass testing in the UK.

Science Papers Examine Feedback Mechanism Affecting Xist, Continuous Health Monitoring for Precision Medicine

In Science this week: analysis of cis confinement of the X-inactive specific transcript, and more.