The Developing Person Through the Life Span Kathleen Stassen Berger The Developing Person Through the Life Span Ninth Edition Chapter 3 Heredity and Environment Copyright © 2014 by Worth Publishers

Figure 3-1 How Proteins Are Made Kathleen Stassen Berger: The Developing Person Through the Life Span, Ninth Edition Copyright © 2014 by Worth Publishers

Figure 3-2 One Species, a Billion Variations Kathleen Stassen Berger: The Developing Person Through the Life Span, Ninth Edition Copyright © 2014 by Worth Publishers

Copyright © 2014 by Worth Publishers One Baby or More Kathleen Stassen Berger: The Developing Person Through the Life Span, Ninth Edition Copyright © 2014 by Worth Publishers

Figure 3-3 Why More Multiple Births? Kathleen Stassen Berger: The Developing Person Through the Life Span, Ninth Edition Copyright © 2014 by Worth Publishers

Copyright © 2014 by Worth Publishers Figure 3-4 Changeling? Kathleen Stassen Berger: The Developing Person Through the Life Span, Ninth Edition Copyright © 2014 by Worth Publishers

Table 3-1 The 23rd Pair and X-Linked Color Blindness Kathleen Stassen Berger: The Developing Person Through the Life Span, Ninth Edition Copyright © 2014 by Worth Publishers

Table 3-2 Common Abnormalities Involving the Sex Chromosomes Kathleen Stassen Berger: The Developing Person Through the Life Span, Ninth Edition Copyright © 2014 by Worth Publishers

Photo Credits Slide 3: Photodisc Getty Images/Hemera/Thinkstock