Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 1, Problem 11TYU
FOCUS ON INFORMATION
A typical prokaryotic cell has about 3,000 genes in its DNA while a human cell has almost 21,000 genes About 1000 of these genes are present in both types of cells. (a) Based on your understanding of evolution explain how such different organisms could have this same subset of 1,000 genes. (b) What sorts of functions might these shared genes have? Justify your choices
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Chapter 1 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 1.1 - Starting with the molecular level in Figure 1.3,...Ch. 1.1 - Identify me theme or themes exemplified by (a) the...Ch. 1.1 - WHAT IF? For each theme discussed in this section...Ch. 1.2 - How is a mailing address analogous to biologys...Ch. 1.2 - Explain why editing is an appropriate metaphor for...Ch. 1.2 - DRAW IT Recent evidence indicates that fungi and...Ch. 1.3 - Contrast inductive reasoning with deductive...Ch. 1.3 - What qualitative observation led to the...Ch. 1.3 - Why is natural selection called a theory?Ch. 1.3 - How does science differ from technology?
Ch. 1 - All the organisms on your campus make up A. an...Ch. 1 - Which of the following best demonstrates the unity...Ch. 1 - Prob. 3TYUCh. 1 - Prob. 4TYUCh. 1 - Prob. 5TYUCh. 1 - DRAW IT With rough sketches, draw a biological...Ch. 1 - SCIENTIFIC INQUIRY Based on the results of the...Ch. 1 - Prob. 9TYUCh. 1 - FOCUS ON EVOLUTION In a short essay (100-150),...Ch. 1 - FOCUS ON INFORMATION A typical prokaryotic cell...Ch. 1 - SYNTHESI7F YOUR KNOWLEDGE Can you pick out the...
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- A CRISPR locus in a bacterium contains (a) short repeated sequences (b) short DNA sequences homologous to bacteriophages (c) genes that encode guide RNAs and one or more proteins (d) a, b, and c (e) none of the precedingarrow_forwardExplain why the answer is correct. For eukaryote cells to evolve into new types of eukaryotic organisms, which of the following would one expect to occur? The correct answer is E a) these cells have evolved because they have different DNA because of mutations b) Their endoplasmic reticulum is synthesizing new and/or different proteins. c) These specialized cells activate new genes to synthesize new proteins. d) these organisms have new characteristics because they have acquired new genes. e) all of these are truearrow_forwardEvolution, which involves genetic changes in a population of organisms over time, is often described as the unifying theme in biology. Discuss how evolution is unifying at the molecular and cellular levels.arrow_forward
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