Multiple Choice Questions 1.5
1. The genes a person inherits are called his_____ ; the observable characteristics a
person inherits are called his ______.
a. gene; chromosome
b. chromosome; gene
c. phenotype; genotype
d. genotype; phenotype
2. The process by which a germ cell divides, producing two gametes (sperm or
ovum), is called
a. the double helix.
b. crossing-over.
c. meiosis.
d. mitosis.
3. Which of the following is an example of a sex-linked characteristic?
a. Dizygotic twinning
b. Red/green color blindness
c. Sickle-cell anemia
d. Polygenic inheritance
4. ______ are external agents such as viruses, drugs, chemicals, and radiation that can
harm a developing embryo or fetus.
a. Birth defects
b. PCBs
c. Teratogens
d. Toxoplasmoses
5. A period during which an organism is quite susceptible to certain environmental
influences is known as a ______. Outside this period, the same environmental
influences must be much stronger to produce comparable effects.
a. sensitive period
b. teratogen period
c. differentiation period
d. danger period
6. The most critical period in prenatal develop- ment for potential damage to the
developing organism from teratogens is the period of the
a. blastocyst.
b. zygote.
c. fetus.
d. embryo.
7. The child’s capability for ___________ is necessary for the child to comply with
emotional display rules.
a. empathy
b. emotional self-regulation
c. self-evaluative
d. embarrassment
1. The genes a person inherits are called his_____ ; the observable characteristics a
person inherits are called his ______.
a. gene; chromosome
b. chromosome; gene
c. phenotype; genotype
d. genotype; phenotype
2. The process by which a germ cell divides, producing two gametes (sperm or
ovum), is called
a. the double helix.
b. crossing-over.
c. meiosis.
d. mitosis.
3. Which of the following is an example of a sex-linked characteristic?
a. Dizygotic twinning
b. Red/green color blindness
c. Sickle-cell anemia
d. Polygenic inheritance
4. ______ are external agents such as viruses, drugs, chemicals, and radiation that can
harm a developing embryo or fetus.
a. Birth defects
b. PCBs
c. Teratogens
d. Toxoplasmoses
5. A period during which an organism is quite susceptible to certain environmental
influences is known as a ______. Outside this period, the same environmental
influences must be much stronger to produce comparable effects.
a. sensitive period
b. teratogen period
c. differentiation period
d. danger period
6. The most critical period in prenatal develop- ment for potential damage to the
developing organism from teratogens is the period of the
a. blastocyst.
b. zygote.
c. fetus.
d. embryo.
7. The child’s capability for ___________ is necessary for the child to comply with
emotional display rules.
a. empathy
b. emotional self-regulation
c. self-evaluative
d. embarrassment
