Today, while searching for articles on junk DNA, I came across a review of Nessa Carey's book published in The American Biology Teacher: DNA. The review was written by teacher in Colorado and she liked the book very much. Here's the opening paragraph,
The term junk DNA has been used to describe DNA that does not code for proteins or polypeptides. Recent research has made this term obsolete, and Nessa Carey elaborates on a wide spectrum of examples of ways in which DNA contributes to cell function in addition to coding for proteins. As in her earlier book, The Epigenetics Revolution (reviewed by ABT in 2013), Carey uses analogies and diagrams to relate complicated information. Although she unavoidably uses some jargon, she provides the necessary background for the nonbiologist.The author of the review does not question or challenge the opinions of Nessa Carey and, if you think about it, that's understandable. The average biology teacher will assume that a book written by a scientist must be basically correct or it wouldn't have been published.
That's not true, as most Sandwalk readers know. You would think that biology educators should know this and exercise a little skepticism when reviewing books. Ideally, the book reviews should be written by experts who can evaluate the material in the book.
Now we have a problem. The way to correct false information about genomes and junk DNA is to teach it correctly in high school and university courses. But that means we first have to teach the teachers. Here's a case where professional teachers have been bamboozled by a bad book and that's going of make it even more difficult to correct the problem.
The last paragraph of the review shows us what influence a bad book can have,
As a biology teacher who enjoys sharing with students some details that go beyond the textbook or that challenge dogma, I enthusiastically read multiple chapters at each sitting, making note of what I cannot wait to add to class discussions. “Junk DNA” may be a misnomer, but Junk DNA is an excellent way of finding out why.Oh dear. It's going to be hard to re-educate those students once their misconceptions have been reinforced by a teacher they respect.