during conception the 23 unpaired chromosomes in the ovum and sperm combine to form 23 pairs in an entirely new cell called the

ATI RN

Exam 4 Psychology

1. During conception, the 23 unpaired chromosomes in the ovum and sperm combine to form 23 pairs in an entirely new cell called the?

A. Embryo
B. DNA
C. Fetus
D. Zygote

Correct answer: D

Rationale: The correct answer is D, Zygote. A zygote is formed when the 23 chromosomes from the ovum and sperm combine during conception. It is the initial cell formed and marks the beginning of a new organism. Choice A, Embryo, is incorrect as an embryo is formed later in the development process. Choice B, DNA, is incorrect as DNA is the genetic material within the chromosomes but is not the name of the new cell formed after fertilization. Choice C, Fetus, is incorrect as a fetus is the stage of prenatal development that occurs well after the zygote stage.

2. Which parental style is characterized by warmth, control, and communication?

A. Authoritarian
B. Permissive/indulgent
C. Authoritative
D. Neglectful/uninvolved

Correct answer: C

Rationale: The correct answer is C, Authoritative. The authoritative parenting style is characterized by a balance of warmth, control, and communication. This style promotes a nurturing environment where parents set clear rules and boundaries while also being responsive to their child's needs. Choice A, Authoritarian, is characterized by strict rules and high control with less warmth and communication. Choice B, Permissive/indulgent, involves high warmth but low control, where rules are not clearly established. Choice D, Neglectful/uninvolved, lacks both warmth and control, with little to no communication or involvement in the child's life.

3. What is extinction and how might it be used in treating a disorder?

A. Extinction strengthens the conditioned response by continuously pairing the conditioned stimulus with the unconditioned stimulus.
B. Extinction is the process of eliminating a conditioned response by repeatedly presenting the conditioned stimulus without the unconditioned stimulus.
C. Extinction is ineffective and is not used in treating disorders.
D. Extinction is the process of intensifying the conditioned response by pairing the conditioned stimulus with a stronger unconditioned stimulus.

Correct answer: B

Rationale: The correct answer is B. Extinction is the process of eliminating a conditioned response by repeatedly presenting the conditioned stimulus without the unconditioned stimulus. This helps in reducing or eliminating undesired behaviors. Choice A is incorrect because extinction does not strengthen the conditioned response but weakens it. Choice C is also incorrect as extinction is a valid technique used in treating disorders by reducing unwanted behaviors. Choice D is incorrect as extinction does not involve intensifying the conditioned response but rather diminishing it.

4. Deferred imitation of a caregiver's behavior shows that toddlers have the capacity to form?

A. Short-term memory
B. Working memory
C. Core memories
D. Long-term memory

Correct answer: D

Rationale: Deferred imitation refers to the ability of toddlers to observe and replicate behaviors after a period of time, indicating the formation of long-term memories. This process involves storing information for an extended period and recalling it at a later time. This capacity is not attributed to short-term memory (choice A), which is more temporary in nature and has limited storage capacity. Working memory (choice B) involves the temporary storage and manipulation of information for cognitive tasks, not necessarily the long-term retention of behaviors. Core memories (choice C) are typically associated with emotional or significant events rather than the replication of observed behaviors. Therefore, the correct answer is choice D, as deferred imitation demonstrates toddlers' capability to form long-term memories by replicating behaviors observed earlier.

5. According to John Watson, behavior is governed primarily by?

A. Heredity.
B. Personal motives.
C. The environment.
D. Unconscious desires.

Correct answer: C

Rationale: According to John Watson, behavior is primarily governed by environmental factors. Watson was a behaviorist who emphasized the influence of the environment on behavior. He believed that behavior is shaped by external stimuli and experiences, rather than internal factors like heredity or unconscious desires. Therefore, choices A, B, and D are incorrect as they do not align with Watson's perspective on behaviorism.