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So Snoopy Couldn't Run (At Least He Could Fly)

In whippets, a type of racing dog, a single copy of a mutated gene for myostatin helps them be the fastest sprinters on the track, report researchers led by Elaine Ostrander from the National Human Genome Research Institute. But having two copies of this MSTN fast-twitch muscle gene doesn't make them doubly fast. Instead, those dogs are bulky with muscle and breeders usually put them down shortly after birth.

Good thing Snoopy was a beagle, and not that fast.

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.