biology

Signature in the Cell

Signature in the Cell is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Signature in the Cell rather than just read about it. In short: Signature in the Cell: DNA and the Evidence for Intelligent Design is a 2009 book about intelligent design by philosopher and intelligent design advocate Stephen C. Meyer.

Key takeaways

Signature in the Cell belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Signature in the Cell to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Signature in the Cell from memory before moving on to harder problems.

Reference excerpt

Signature in the Cell: DNA and the Evidence for Intelligent Design is a 2009 book about intelligent design by philosopher and intelligent design advocate Stephen C. Meyer. The book was well received by some within the conservative, intelligent design and evangelical communities, but several other reviewers were critical and wrote that Meyer's claims are incorrect.

Summary According to Meyer, historical sciences seek to establish past causes of events using three criteria: (1) that a proposed cause was present, (2) that independent evidence establishes that the proposed cause can indeed produce that event, and (3) that there is an absence of evidence of other possible causes. In his view, the first form of life would have been a functioning, self-replicating, and protein-synthesizing system of DNA and proteins, and as such an information-rich system. Meyer believes that chemical evolution, chance, and chemical necessity have not been proven capable of producing information-rich systems, and that intelligent design is therefore the best explanation for the emergence of life on this planet. He argues that definitions of science that would preclude intelligent design from being a science also preclude many other fields, already established as science, from being science. Meyer believes the designing mind is the God described by the Christian religion. He acknowledges that this may affect the motivations behind his theory.

Reception The book has been well received by some within the conservative, intelligent design and evangelical communities. It was not reviewed by scientific journals or popular science magazines. Philosopher Thomas Nagel submitted the book to the "2009 Books of the Year" supplement for The Times. Stephen Fletcher, chemist at Loughborough University, responded in The Times Literary Supplement that Nagel was "promot[ing] the book to the rest of us using statements that are factually incorrect." Fletcher explained that, "Natural selection is in fact a chemical process as well as a biological process, and it was operating for about half a billion years before the earliest cellular life forms appear in the fossil record." In another publication, Fletcher wrote that "I am afraid that reality has overtaken Meyer’s book and its flawed reasoning" in pointing out scientific problems with Meyer's work by citing how RNA "survived and evolved into our own human protein-making factory, and continues to make our fingers and toes." Darrel Falk, co-president of the BioLogos Foundation and a biology professor at Point Loma Nazarene University, reviewed the book and used it as an example of why he does not support the intelligent design movement. In 2010 the BioLogos Foundation published Meyer's response to Falk. The response criticizes Falk's characterization of Meyer's credentials as well as the lack of any evidence from Falk that the premise of his book is faulty. The American Scientific Affiliation, a Christian organization of scientists and others, published a detailed analysis of the book's assertions by their executive director, physicist Randall Isaac. Steve Matheson, a developmental biologist at Calvin College (an institution of the Christian Reformed Church), wrote an analysis critical of the book. In a post on The Panda's Thumb, Richard Hoppe concluded that the book failed to make a strong case for ID. The Discovery Institute published a collection of responses to critics edited by David Klinghoffer.

References

External links Signature in the Cell Seeking a Signature, a review of Signature in the Cell appearing in Perspectives on Science and Christian Faith

Worked examples

Example 1 — a first encounter with Signature in the Cell

Start with the simplest possible case. Write down what Signature in the Cell claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Signature in the Cell before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Signature in the Cell ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Signature in the Cell

In research: Signature in the Cell appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Signature in the Cell in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Signature in the Cell is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2009 English-language non-fiction books, 2009 non-fiction books, American non-fiction books, so understanding it makes those chapters shorter.
In everyday life: Look for Signature in the Cell outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Signature in the Cell in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Signature in the Cell means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Signature in the Cell out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Signature in the Cell in simple terms?

Signature in the Cell: DNA and the Evidence for Intelligent Design is a 2009 book about intelligent design by philosopher and intelligent design advocate Stephen C. Meyer.

Why does Signature in the Cell matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Signature in the Cell?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Signature in the Cell.