The book arguably focuses on the origin of life, but it also implicitly and explicitly challenges evolutionary theory. I wonder if you have read the book? If so, perhaps you missed these passages*. There are several othersthat are similar.:
page 410
In On the Origin of Species Darwin sought to show that natural selection has creative powers comparable to those of intelligent human breeders. In doing so, he sought to refute the design hypothesis by providing a materialistic explanation for the origin of the appearance of design in living organisms.
<. . . .>
Is the appearance of design in biology real or illusory? Clearly, there are two possible answers to this question. Neo-Darwinism and chemical evolutionary theory provide one answer, and competing theories of intelligent design provide an opposite answer.
page 204-205
The Wistar scientists explained that a similar difficulty confronts the Darwinian mechanism. According to neo-Darwinian theory, new genetic information arises first as random mutations occur in the DNA of existing organisms. When mutations arise that confer a survival advantage on the organisms that possess them, the resulting genetic changes are passed on by natural selection to the next generation. As these changes accumulate, the features of a population begin to change over time. Nevertheless, natural selection can "select" only what random mutations first produce. And for the evolutionary process to produce new forms of life, random mutations must first have produced new genetic information for building novel proteins. That, for the mathematicians, physicists and engineers at Wistar, was the problem. Why?
Meyer then goes on to explain why, supporting the concerns of the Wistar group and thereby attacking a fundamental aspect of evolutionary theory.
Supplemental Supporting Arguments
The subtitle of the book is "DNA and the evidence for Intelligent Design". Since Intelligent Design contradicts conventional evolutionary theory it follows that an argument in support of ID is an argument against the current consensus view on evolution.
The classification of the book is:
1. Intelligent Design (Teleology) 2. Evolution (Biology) - Religious aspects 3. Religion and science.
Clearly the classifiers believed that a discussion of evolution was an important part of it, as was ID.
In the dust jacket blurb we read that "Meyer embarks on an odyssey of discovery as he investigates current evolutionary theories and the evidence thatultimately led him to affirm intelligent design.
*All extracts are from the First Edition, Signature in the Cell, published in 2009 by Harper Collins.
ISBN: 978-0--06-147278-7