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Epigenomics, Abridged

Mother Jones' Joe Kloc this week presents his "illustrated guide to epigenetics" — four figures are paired with explanatory text that describes the processes of methylation and histone modification for a lay audience. Kloc explains epigenetics by answering his own straightforward questions, such as "How can different types of epigenomes develop from the same genome?" and "Why do scientists care?" He says that if the genome is a "how-to manual that contains instructions for every possible task required for a complex living creature to survive," then the epigenome "tells each cell which part of the manual to read."

The Scan

Study Reveals New Details About Genetics of Major Cause of Female Infertility

Researchers in Nature Medicine conducted a whole-exome sequencing study of mote than a thousand patients with premature ovarian insufficiency.

Circulating Tumor DNA Shows Potential as Biomarker in Rare Childhood Cancer

A study in the Journal of Clinical Oncology has found that circulating tumor DNA levels in rhabdomyosarcoma may serve as a biomarker for prognosis.

Study Recommends Cancer Screening for Dogs Beginning Age Seven, Depending on Breed

PetDx researchers report in PLOS One that annual cancer screening for dogs should begin by age seven.

White-Tailed Deer Harbor SARS-CoV-2 Variants No Longer Infecting Humans, Study Finds

A new study in PNAS has found that white-tailed deer could act as a reservoir of SARS-CoV-2 variants no longer found among humans.