Chapter 4 Child Cognition Practice
Test Questions with Solved Solutions
(2025-2026) Updated Version.
Genes influence physical development most directly by:
A. Secreting certain enzymes that stimulate or inhibit growth
B. Interacting with cells in the mother's placenta
C. Controlling the speed with which electrical impulses flow
D. Instructing the body to produce certain proteins - Answer D
Human cells contain 23 pairs of chromosomes. Within each pair:
A. Both chromosomes are inherited from the opposite-sex parent.
B. One chromosome is inherited from the mother and the other from the father.
C. One chromosome is inherited from the mother and the other may come from either the
mother or the father.
D. Both chromosomes are inherited from the same-sex parent. - Answer B
, B. The great majority of them
C. Less than 10% of them
D. Approximately 20% of them - Answer B
Which one of the following statements most accurately describes the effects of a particular
gene on a child's development and functioning?
A. Any single gene's impact is highly unpredictable from one individual to the next.
B. A gene is essentially a ticking "time bomb" that is scheduled to "explode" at a certain time
regardless of other things that might be happening in the body.
C. A gene's effects depend partly on the child's health and activity levels and on environmental
conditions in which the child lives.
D. A gene is like a computer program that, once started, proceeds through a series of steps to its
inevitable conclusion. - Answer C
Reproductive cells (sperm in men and ova in women) are different from other human cells in
that they:
A. Have an outer coating that can be easily penetrated
Test Questions with Solved Solutions
(2025-2026) Updated Version.
Genes influence physical development most directly by:
A. Secreting certain enzymes that stimulate or inhibit growth
B. Interacting with cells in the mother's placenta
C. Controlling the speed with which electrical impulses flow
D. Instructing the body to produce certain proteins - Answer D
Human cells contain 23 pairs of chromosomes. Within each pair:
A. Both chromosomes are inherited from the opposite-sex parent.
B. One chromosome is inherited from the mother and the other from the father.
C. One chromosome is inherited from the mother and the other may come from either the
mother or the father.
D. Both chromosomes are inherited from the same-sex parent. - Answer B
, B. The great majority of them
C. Less than 10% of them
D. Approximately 20% of them - Answer B
Which one of the following statements most accurately describes the effects of a particular
gene on a child's development and functioning?
A. Any single gene's impact is highly unpredictable from one individual to the next.
B. A gene is essentially a ticking "time bomb" that is scheduled to "explode" at a certain time
regardless of other things that might be happening in the body.
C. A gene's effects depend partly on the child's health and activity levels and on environmental
conditions in which the child lives.
D. A gene is like a computer program that, once started, proceeds through a series of steps to its
inevitable conclusion. - Answer C
Reproductive cells (sperm in men and ova in women) are different from other human cells in
that they:
A. Have an outer coating that can be easily penetrated
