Biology Now, 2e

Answers ■ A15 A1: There are so many genes on an individual chromosome that deleting or adding an entire chromosome has massive e ...

A16 fiffAnswers CHAPTER 9 END-OF-CHAPTER ANSWERS c d a d nucleotide: 4, base pair: 1, DNA molecule: 3, base: 2 (See figure belo ...

Answers ■ A17 Figure 9.6 Q1: What common mechanism is employed by the guide RNA to find its target DNA sequence? A1: Complementa ...

A18 fiffAnswers CHAPTER 10 END-OF-CHAPTER ANSWERS gene expression: 2, gene regulation: 3, transcription: 1, trans- lation: 4 ...

Answers ■ A19 Figure 10.8 Q1: Which amino acid always begins an amino acid chain? Which codon and anticodon are associated with ...

A20fiffAnswers Q2: Explain how selective breeding leads to artificial selection. A2: Over time, the population resulting from ge ...

Answers ■ A21 having these traits die and do not reproduce. Traits that are merely useless and not harmful will persist in the o ...

A22fiffAnswers Population bottlenecks cause individuals in the resulting popu- lation to be more genetically similar to each o ...

Answers ■ A23 see them to kill and eat them, the phenotype of the population of peppered moths would become darker like the tree ...

A24fiffAnswers Figure 12.14 Q1: Why do you think a genetic bottleneck is more likely to occur in a small population than in a la ...

Answers ■ A25 A3: No, geographic barriers are not universal. A river, for example, might block gene flow between two lizard popu ...

A26fiffAnswers (See figure below) Common ancestor of the Eukarya Domain Bacteria Domain Archaea Kingdom Plantae Kingdom Protis ...

Answers ■ A27 Q3: Are individual species more closely related within the same order or within the same family? A3: Family. Figur ...

A28fiffAnswers Q2: From the micrographs here, does it appear that all prokaryotes have a flagellum? A2: No. Q3: Which one of the ...

Answers ■ A29 ANSWERS TO FIGURE QUESTIONS Figure 16.3 Q1: Are ciliates more closely related to euglenoids or to diatoms? To eugl ...

A30fiffAnswers b Shallow water, oxygen-poor water, areas with seasonal flooding, and nutrient-poor water but nutrient-rich lan ...

Answers ■ A31 Figure 17.9 Q1: What other reason besides continuing to use trees might explain why early hominins had partially o ...

A32fiffAnswers A2: The Neanderthal has a more pronounced eyebrow ridge and more sloping forehead. Q3: Why would you expect a hyb ...

Answers ■ A33 Figure 18.11 Q1: Where will fire most seriously affect the Amazon rainforest? A1: Fire will most likely affect are ...

A34fiffAnswers ANSWERS TO FIGURE QUESTIONS Figure 19.1 Q1: What parts of the United States are within the range of the mosquito ...