Chapter 1: The Major Issues
TRUE/FALSE
1. Neuroscientists are more interested in studying behavior than biological psychologists.
ANS: F PTS: 1 DIF: factual REF: Introduction
OBJ: 1 TOP: 1.1 The Biological Approach to Behavior
2. According to Tinbergen, a physiological explanation describes why a structure or behavior
evolved as it did.
ANS: F PTS: 1 DIF: factual REF: Introduction
OBJ: 1 TOP: 1.1 The Biological Approach to Behavior
3. An evolutionary explanation describes why a structure or behavior evolved.
ANS: F PTS: 1 DIF: factual REF: Biological
Explanations of Behavior OBJ: 1 TOP: 1.1 The Biological Approach
to Behavior
MSC: www
4. An ontogenetic explanation is one that describes the development of a structure or
behavior.
ANS: T PTS: 1 DIF: factual REF: Biological
Explanations of Behavior OBJ: 1 TOP: 1.1 The Biological Approach
to Behavior
MSC: www
5. A functional explanation describes why a structure or behavior evolved as it did.
, ANS: T PTS: 1 DIF: factual REF: Biological
Explanations of Behavior OBJ: 1 TOP: 1.1 The Biological Approach
to Behavior
6. Genes are the units of heredity.
ANS: T PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
7. A strand of DNA serves as a template (model) for the synthesis of RNA molecules.
ANS: T PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
8. It is possible for two heterozygous brown-eyed parents to have blue-eyed children.
ANS: T PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
9. If both parents are heterozygous, then all of their children should be homozygous.
ANS: F PTS: 1 DIF: conceptual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
10. The sex chromosomes X and Y are known as autosomal genes.
, ANS: F PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
11. Sex-linked genes are usually found on the Y chromosome.
ANS: F PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
12. When chromosomes cross over, it is more likely to affect genes that are on separate
chromosomes than genes that are on the same chromosome.
ANS: T PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
13. The genetic sex of an offspring is determined primarily by the sex chromosome contributed
by the mother.
ANS: F PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
14. Sex-limited genes are found only on the X and Y chromosome.
ANS: F PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
15. To determine the contributions of heredity and environment, researchers rely mainly on
studies of monozygotic and dizygotic twins.
, ANS: T PTS: 1 DIF: factual REF: Heredity and
Environment OBJ: 4 TOP: 1.2 Genetics and Behavior
16. Researchers have found specific genes linked to certain specific behaviors.
ANS: T PTS: 1 DIF: factual REF: Heredity and
Environment OBJ: 4 TOP: 1.2 Genetics and Behavior
KEY: NEW
17. The damaging effects of phenylalanine in children with PKU are unavoidable.
ANS: F PTS: 1 DIF: factual REF: Heredity and
Environment OBJ: 4 TOP: 1.2 Genetics and Behavior
18. Genes become more prevalent in a population if they contribute to reproductive success.
ANS: T PTS: 1 DIF: factual REF: The Evolution of
Behavior OBJ: 3 TOP: 1.2 Genetics and Behavior
19. Humans have stopped evolving.
ANS: F PTS: 1 DIF: conceptual REF: The Evolution of
Behavior OBJ: 5 TOP: 1.2 Genetics and Behavior
20. Evolutionary psychology deals with how behaviors have evolved, especially social
behaviors.
ANS: T PTS: 1 DIF: factual REF: The Evolution of
Behavior OBJ: 5 TOP: 1.2 Genetics and Behavior
TRUE/FALSE
1. Neuroscientists are more interested in studying behavior than biological psychologists.
ANS: F PTS: 1 DIF: factual REF: Introduction
OBJ: 1 TOP: 1.1 The Biological Approach to Behavior
2. According to Tinbergen, a physiological explanation describes why a structure or behavior
evolved as it did.
ANS: F PTS: 1 DIF: factual REF: Introduction
OBJ: 1 TOP: 1.1 The Biological Approach to Behavior
3. An evolutionary explanation describes why a structure or behavior evolved.
ANS: F PTS: 1 DIF: factual REF: Biological
Explanations of Behavior OBJ: 1 TOP: 1.1 The Biological Approach
to Behavior
MSC: www
4. An ontogenetic explanation is one that describes the development of a structure or
behavior.
ANS: T PTS: 1 DIF: factual REF: Biological
Explanations of Behavior OBJ: 1 TOP: 1.1 The Biological Approach
to Behavior
MSC: www
5. A functional explanation describes why a structure or behavior evolved as it did.
, ANS: T PTS: 1 DIF: factual REF: Biological
Explanations of Behavior OBJ: 1 TOP: 1.1 The Biological Approach
to Behavior
6. Genes are the units of heredity.
ANS: T PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
7. A strand of DNA serves as a template (model) for the synthesis of RNA molecules.
ANS: T PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
8. It is possible for two heterozygous brown-eyed parents to have blue-eyed children.
ANS: T PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
9. If both parents are heterozygous, then all of their children should be homozygous.
ANS: F PTS: 1 DIF: conceptual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
10. The sex chromosomes X and Y are known as autosomal genes.
, ANS: F PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
11. Sex-linked genes are usually found on the Y chromosome.
ANS: F PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
12. When chromosomes cross over, it is more likely to affect genes that are on separate
chromosomes than genes that are on the same chromosome.
ANS: T PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
13. The genetic sex of an offspring is determined primarily by the sex chromosome contributed
by the mother.
ANS: F PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
14. Sex-limited genes are found only on the X and Y chromosome.
ANS: F PTS: 1 DIF: factual REF: Mendelian Genetics
OBJ: 5 TOP: 1.2 Genetics and Behavior
15. To determine the contributions of heredity and environment, researchers rely mainly on
studies of monozygotic and dizygotic twins.
, ANS: T PTS: 1 DIF: factual REF: Heredity and
Environment OBJ: 4 TOP: 1.2 Genetics and Behavior
16. Researchers have found specific genes linked to certain specific behaviors.
ANS: T PTS: 1 DIF: factual REF: Heredity and
Environment OBJ: 4 TOP: 1.2 Genetics and Behavior
KEY: NEW
17. The damaging effects of phenylalanine in children with PKU are unavoidable.
ANS: F PTS: 1 DIF: factual REF: Heredity and
Environment OBJ: 4 TOP: 1.2 Genetics and Behavior
18. Genes become more prevalent in a population if they contribute to reproductive success.
ANS: T PTS: 1 DIF: factual REF: The Evolution of
Behavior OBJ: 3 TOP: 1.2 Genetics and Behavior
19. Humans have stopped evolving.
ANS: F PTS: 1 DIF: conceptual REF: The Evolution of
Behavior OBJ: 5 TOP: 1.2 Genetics and Behavior
20. Evolutionary psychology deals with how behaviors have evolved, especially social
behaviors.
ANS: T PTS: 1 DIF: factual REF: The Evolution of
Behavior OBJ: 5 TOP: 1.2 Genetics and Behavior
