| DQ 2.1 |
Why is the concept of “specificity” so important? How did its importance emerge?
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| DQ 2.2 |
Explain the parallels between the lysogeny of phage λ and the regulation of β-galactosidase.
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| DQ 2.3 |
What did logical arguments about the nature of the genetic code contribute to its deciphering?
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| DQ 2.4 |
Could a living organism be based on the basic principles of molecular biology that were discovered by 1965?
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| DQ 2.5 |
Why does RNA play such a ubiquitous role? HINT 2A
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| DQ 2.6 |
Explain why Crick’s Central Dogma—that “once ‘information’ has passed into protein, it cannot get out again” (p. 53)—is necessarily true.
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| DQ 2.7 |
Why did Monod write that allostery “is of such value to living beings that natural selection must have used it to the limit” (p. 56)?
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| DQ 2.8 |
Justify the statement that “up till now, only a minority of modern developments in evolutionary biology have been driven by the rise of molecular biology” (p. 60). HINT 2B
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| DQ 2.9 |
A brief classification of the various methods used in evolutionary biology is given on p. 61. Expand on this, illustrating these methods with examples from the rest of the book.
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| DQ 2.10 |
What difference has molecular biology made to our understanding of evolution? HINT 2C
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