CAMPBELL BIOLOGY-W/MOD.MASTERBIOLOGY
11th Edition
ISBN: 9780134683461
Author: Urry
Publisher: PEARSON
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Chapter 26.6, Problem 3CC
MAKE CONNECTIONS Ø Explain how the origin of eukaryotes is thought to have represented a fusion of organisms, leading to extensive horizontal gene transfer. (See Figure 25.10.)
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Chapter 26 Solutions
CAMPBELL BIOLOGY-W/MOD.MASTERBIOLOGY
Ch. 26.1 - VISUAL SKILLS: Which levels of the classification...Ch. 26.1 - Prob. 2CCCh. 26.1 - DRAW IT The bear family (Ursidae) is more closety...Ch. 26.2 - Decide whether each of the following pairs of...Ch. 26.2 - Prob. 2CCCh. 26.3 - Prob. 1CCCh. 26.3 - Prob. 2CCCh. 26.3 - WHAT IF? Draw a phylogenetic tree that includes...Ch. 26.4 - Explain how comparing proteins of two species can...Ch. 26.4 - WHAT IF? Suppose gene A is orthologous in species...
Ch. 26.4 - Prob. 3CCCh. 26.5 - What is a molecular clock? What assumption...Ch. 26.5 - Prob. 2CCCh. 26.5 - WHAT IF? Suppose a molecular dock dates the...Ch. 26.6 - Why is the kingdom Monera no longer considered a...Ch. 26.6 - Prob. 2CCCh. 26.6 - MAKE CONNECTIONS Explain how the origin of...Ch. 26 - Humans and chimpanzees are sister species. Explain...Ch. 26 - Why is it necessary to distinguish homology from...Ch. 26 - Prob. 26.3CRCh. 26 - When reconstructing phylogenies, is it more useful...Ch. 26 - Prob. 26.5CRCh. 26 - Prob. 26.6CRCh. 26 - In a comparison of birds and mammals, the...Ch. 26 - To appiy parsimony to constructing a phylogenetic...Ch. 26 - VISUAL SKILLS In Figure 26.4, which similarly...Ch. 26 - Three living species X, Y, and Z share a common...Ch. 26 - VISUAL SKILLS Based on the tree below, which...Ch. 26 - If you were using cladistics to build a...Ch. 26 - VISUAL SKILLS The relative lengths of the frog and...Ch. 26 - EVOLUTION CONNECTION Darwin suggested looking at a...Ch. 26 - SCIENTIFIC INQUIRY DRAW IT (a) Draw a...Ch. 26 - WRITE ABOUT A THEME: INFORMATION In a Short essay...Ch. 26 - SYNTHESIZE YOUR KNOWLEDGE This West Indian manatee...
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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_forwardChronologically arrange the evolutionary events, with 1 being the earliest and 6 the most recent _____1 a. onset of oxygen-releasing pathway of photosynthesis _____2 b. origin of mitochondria _____3 c. origin of protocells _____4 d. emergence of the first eukaryotes _____5 e. origin of chloroplasts _____6 f. the big bangarrow_forwardI'm lederberg experiment ecology colonies grow in a sense of bacteriophage when transferred by replica plotting onto 2 plates with bacteriophage they observed some colonies resistant to bacteria phage what did the observation allow them to concludearrow_forward
- Define horizontal gene transfer in bacteria and explain 3 mechanisms by which thiscan take place in bacteria (Hint: we talked about 4 mechanisms in the lecture,arrow_forwardDefine, diagram & compare the 3 mechanisms of Horizontal Gene Transfer in prokaryotes. In each case, what must happen for the exchanged DNA to be stably inherited?arrow_forwardVISUALIZE Use two different colors to depict the unduplicated chromosomes of species C with larger chromosomes (2n = 8) and species D with slightly smaller chromosomes (2n = 10), and of their F1 hybrid. Is the hybrid likely to be fertile?arrow_forward
- INTERPRET DATA Evidence for the oldest cyanobacterial fossils (as stromatolites) dates to about 2 billion years, but molecular evidence inferred from lipids in ancient rocks puts the date for living cyanobacteria and eukaryotes at 2.7 billion years. Develop two opposing hypotheses to explain the discrepancy between the dates.arrow_forwardWhen looking at the transformation lead to evolution in bacteria?remember evolution involves selection of the fitttest ,think about how bacteria can be fit and what they can get their bacteria friends to be even more in shape?arrow_forwardEVOLUTION LINK. In what ways does evolution depend on transfer of information? In what ways does transfer of information depend on evolution?arrow_forward
- Describe the hypothesized steps in the origin of eukaryotic cells.arrow_forwardMAKE CONNECTIONS Like animals, cyanobacteria havea circadian rhythm. By analyzing the genes that maintainbiological clocks, scientists concluded that the 24-hourrhythms of humans and cyanobacteria reflect convergentevolution (see Concept 26.2). What evidence would havesupported this conclusion? Explain.arrow_forwardBased on the emerging data, should the existing ‘3 Domains of Life – Archaea, Bacteria, Eukarya’ be formally revoked and replaced by only 2 Domains? What is the significance of the Last universal common ancestor (LUCA) in this matter?arrow_forward
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