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Andrew Yates reviews Stewart Scherer's A Short Guide to the Human Genome. It's not, he says, a book for laypeople but for scientists with a grounding in molecular biology and interested in genomics. As such, the book expects you to add your own context, says Yates. It contains a fair few factoids including these that Yates posted: "How big is the largest protein? 33,423 amino acids (titin, which is encoded by the TTN gene). The smallest? 25aa (product of gene RPL41). The smallest predicted? 13aa (LOC644929 and LOC727721)."

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.