Genes are at the heart of this book, and the author just happens to have parents named Gene and Jean (last name Kean), so this topic is in his... well, you get it. Sam Kean is one of my favorite authors, deftly explaining scientific concepts in the context of the fascinating figures who first brought them to our attention. The stories are full of the humor and foibles of real life, and that realistic treatment brings the people and situations to life all the more convincingly. Kean has a remarkable knack for finding fun anecdotes and interesting connections that reinforce concepts throughout his books. His enthusiasm is infectuous and bleeds out in the form of humor, copious end notes, additional notes and illustrations on his website, and in the case of this book: a hidden, acrostic message encoded in the... Chapters? Paragraphs? I've already spent a couple hours trying to decode it [and am likely over-thinking it], but figured I should write this review first, or who knows how long I'll be working this out?
The Violinist's Thumb is about the history of genes and DNA: how we came to question the nature of inheritance, our first inklings of the structures involved, dalliances with fruit flies, sequencing genomes, encoding proteins, suffering mutations, puzzling over "freaks" and chimeras, swapping DNA with Neanderthals, detecting virus intrustions, all the way up to our current, improved-yet-incomplete understanding of what makes us us. As of 2012, anyhow. Having completed all four of Kean's books, I dub this the most challenging. The subject matter itself is incredibly dense, metaphorically as well as literally: six feet of DNA is crammed into every one of our cells, and the DNA from one body could travel from the sun to Pluto and almost return. Kean has to describe with words a lot of things that are hard to understand even with pictures, and there are a lot of moving parts (one again, literally) and competing, concurrent processes to consider when thinking about the complex actions of DNA, RNA, proteins, mutations, nutrients and drugs, bacteria, viruses and epigenetic factors. There are many passages I had to read multiple times just to understand well enough to procede - if you've had formal training in genetics, this will likely come much easier to you.
Characters familiar and unfamiliar are represented. We of course learn a lot about Mendel and Darwin, but also about Friedrich Miescher and his efforts in a cold castle kitchen to extract dna from salmon sperm, never knowing exactly what he had accomplished. Thomas Hunt Morgan and the scientists in his lab bred gazillions of fruit flies in work that led to multiple Nobel Prizes, but Morgan he often took credit for ideas and never paid an essential contributor (he didn't pay the fruit flies, either). Watson and Crick are here, but so is Sister Miriam Michael Stimson, a nun who made their discovery possible (we also learn of the clergical error that led to her getting the name Michael, and that she contributed to the invention of Preparation H). Lynn Margulis's brilliant insight into endosymbionts is represented, as well as her other bold, unsubstantiated ideas. Barbra McClintock's skill with a microscope and identification of "jumping genes" is told in the light of the scientific scrutiny that drove her into seclusion, but later drew her back out as a science celebrity. We jump through history and learn of northern explorers dying (and nearly dying) at the razored-hands and nutrient-rich livers of polar bears (hint: you can over-do it with Vitamin A). Royal bloodlines and figures like Akhenaten, Tutankhamun, Henri Tolouse-Lautrec, Alexei Nikolaevich and the Hapsburgs teach us lessons about deleterious alleles. Soviet biologist Ilya Ivanovich Ivanov worked hard to breed humans and chimpanzees, and it might have worked if it weren't for those meddling political ideologies. The titular violinist is Niccolo Paganini, whose genetic condition gave him extraordinarily flexible and strong hands, but also led to his miserable bodily decline (with the help of mercury poisoning).
All of these fascinating stories (and many more), combined with artful scientific explanations, do a fantastic job of fleshing out one's understanding of genes, DNA, and the science of what it takes to build a body. A highly recommended read.