Biology Now, 2e

(Ben Green) #1

GENETICS


Dog Days


of Science


Two canine-loving researchers unravel


the genetic secrets of man’s best friend.


◆ (^) Distinguish between the genotype and phenotype of a given genetic trait.
◆ (^) Describe the importance of Gregor Mendel’s experiments to our understanding of
inheritance.
◆ (^) Illustrate Mendel’s laws of segregation and independent assortment.
◆ (^) Create a Punnett square to predict the phenotype of offspring from parents with a
known genotype—both for single genes and for two independent genes.
◆ (^) Give examples of Mendelian traits and of traits with complex inheritance.
◆ (^) Explain how an individual’s phenotype may be determined by multiple genes that
interact with one another and with the environment.
After reading this chapter you should be able to:

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