Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
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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A typical prokaryotic cell has about 3,000 genes in its DNA, while a human cell has almost 21,000 genes. About 1,000 of these genes are present in both types of cells. Based on your understanding of evolution, explain how such different organisms could have this same subset of 1,000 genes. What sorts of functions might these shared genes have?
Darwin and the Theory of Evolution - V2
So how and why did Charles Darwin come to develop his ground-breaking Theory of Evolution?
In Darwin's lifetime the Christian biblical idea that about 6,000 years ago god created all the species
exactly as we see them, was the accepted belief. When he was only 22, Darwin was the naturalist on the
HMS Beagle. He voyaged around the world for 5 years, with numerous long stops to
__and observe. These observations lead him to conclude that Biblical stories could
Darwin made many
that caused him to ask key.
Some that he later used to support the Theory of Evolution included:
Darwin's 5 Observations
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and were very
from
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European rodents.
2. The
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looked like the nearest,
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Chapter 1 Solutions
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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- 17) Multicellularity is an important evolutionary innovation in the history of life on Earth. For the following statements, designate which is true (T) and which is false (F). Correct the false. Multicellularity has evolved independently a few times in the history of life. Multicellular members of domain Eukarya arose through the process of endosymbiosis. Multicellular organisms have cells specialized for different functions, with each cell type having a unique genetic sequence. Cell differentiation occurs in unicellular organisms but not in multicellular organisms. Multicellular organisms are absent from the domain Archaea.arrow_forward5. Make a molecular evidence cladogram. Cytochrome c is a protein located in the mitochondria of cells involved with cellular respiration. Compare each organism's Cytochrome CDNA sequences with the ancestor cell and each other. Highlights are the differences (mutations) present in the cytochrome CDNA sequences from ancestor cell. 1 2 3 4 5 6 7 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 7 38 39 ANCESTOR CELL A Т ТА G CGA C СAGTA ТАТ С сТА СА А Т С С G T C T АСТТCАT TO АМОЕВА ATTA GC GA CCAGT ITAT C CTA CA AT C C C G TCTA CT T CAT 11 AT TATC G ACC AGT TT AT C CT ACATT ccc G ATACT Т 13 SPONGE EARTHWORM С ТТА Т С G A С| С С G TT TA Т С СТ А СА Т т CC C GT CTACT TC т| 15 CT TAT C c cc CC G TT TATC CTACTTTCC C GT C TACT TCG T 18 SHARK CT A ATCCCCCCGT TTAT C CTACTTT C cc GT CTACTTC GT 19 LIZARD CTA ATC c cc cc G TT TAT C CTACTTT CC CAT CTACTAAG T 18 KANGAROO CTA A T C C C CC c G T T IAT C CT ACTT I C C C AT GTAGT А GT 18 DOLPHIN TTA ATC c cccc GTT…arrow_forwardA 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_forward
- Explain 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_forwardWhat's In Let us review what you have learned from the previous module. Answer the activity below. ACTIVITY 1. Match Me! Directions: Match Column A with the correct answers in Column B by writing the number of your answers in the Answer Grid. If all your answers are correct, the sum when answers are added horizontally, vertically, or diagonally will give you a magic number. Column A Column B a. A process in which new species form b. Authored the Theory of Evolution by Natural Selection 1. Thomas Malthus 2. Hybrid sterility c. It occurs when a hybrid develops, matures but fails to reproduce increasing 3. Pre-mating isolating mechanism d. States that human 4. Jean Baptiste Lamarck population limits resources e. Species will different mating seasons f. Sought pieces of evidence for the idea of uniformitarianism due to 5. Temporal isolation not mate 6. Speciationarrow_forwardWhat's In Let us review what you have learned from the previous module. Answer the activity below. ACTIVITY 1. Match Me! Directions: Match Column A with the correct answers in Column B by writing the number of your answers in the Answer Grid. If all your answers are correct, the sum when answers are added horizontally, vertically, or diagonally will give you a magic number. Column A Column B a. A process in which new species form b. Authored the Theory of Evolution by Natural Selection 1. Thomas Malthus 2. Hybrid sterility 3. Pre-mating isolating mechanism c. It occurs when a hybrid develops, matures but fails to reproduce d. States population limits resources e. Species will different mating seasons f. Sought pieces of evidence for the idea of uniformitarianism that increasing human 4. Jean Baptiste Lamarck due 5. Temporal isolation not mate to 6. Speciation 1arrow_forward
- Evolution, 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_forward1. Discuss four key characteristics that help define and recognize science, differentiating it from other ways of knowing (and what is an example of another way of knowing?). 2. Discuss and refute three of the common misconceptions about human evolution. 3. Discuss and explain the process of protein synthesis. Provide as much detail as possible. 4. Describe primate forms of communication using examples from the video "Life of Mammals: the Social Climbers." Compare and contrast primate and human communication. 5. Describe what kinds of information can be learned from a single fossil, including information about the organism and its environment. Use examples of fossils we have studied to illustrate your claims.arrow_forwardQuestion A: From an evolutionary point of view, why can't we say that the human species is the most evolved? Briefly explain in your own words based on a concrete examplearrow_forward
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