xxii fiffPreface
Pigs to the
Rescue
Using CRISPR, a hot new genome-editing tool,
scientists hope to create a steady stream of transplant
organs—from pigs.◆ Describe the structure of DNA, using appropriate terminology.◆ (^) Use the base-pairing rules to determine a complementary strand of DNA based on a given template strand.
◆ (^) Describe how the genome editing tool CRISPR-Cas9 works.
◆ (^) Label a diagram of DNA replication, identifying the location of each step in the
◆process.
Identify when PCR and gene sequencing technology should be used in an experiment.
◆ (^) Explain the cause of DNA replication errors, and describe how they are repaired.
◆ (^) Give an example of a mutation and its potential effects on an organism.
After reading this chapter you should be able to:
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GENETICS
09
CHAPTER
WHAT GENES ARE
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Whale
Hunting
Fossil hunters discover Moby Dick’s earliest
ancestor—a furry, four-legged land lover.
◆ (^) Defi ne evolution and list the six types of evidence for evolution.
◆ (^) Compare and contrast artifi cial selection and natural selection.
◆ (^) Summarize the argument that the fossil record provides evidence in support
of evolution.
◆ Give an example of a homologous or vestigial trait, and explain how such traits support the theory of common descent.
◆ Explain why even distantly related species have similar DNA.
◆ Use your knowledge of evolution and continental drift to make a prediction about the geographic location of a given set of fossils.
◆ Relate similarities in embryonic development among species to their shared evolutionary past.
After reading this chapter you should be able to:
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EVOLUTION
11
CHAPTER
EVIDENCE FOR EVOLUTION
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Dynamic chapter-
opening spreads
inspired by each
chapter’s story draw
students in to the
material.
“After reading
this chapter
you should be
able to” introduces
learning outcomes that
preview the concepts
presented in each
chapter.
The perfect balance
of science and story
Every chapter is structured around a story about people doing science
that motivates students to read and stimulates their curiosity about
biological concepts.