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. What neurotransmitter was first believed to be the cause of schizophrenia?

A. GABA
B. Serotonin
C. Epinephrine
D. Dopamine

Correct answer: D

Rationale: The correct answer is Dopamine. Dopamine was initially thought to be the primary cause of schizophrenia. This neurotransmitter hypothesis was based on the observation that drugs that increase dopamine activity can worsen symptoms of schizophrenia, while drugs that decrease dopamine activity can improve symptoms. Choices A, B, and C are incorrect because GABA, serotonin, and epinephrine were not the neurotransmitters initially believed to be the cause of schizophrenia.

3. Scientific research has demonstrated the __________ parenting style is most likely to lead to healthy psychological development in children.

A. Authoritarian
B. Permissive
C. Authoritative
D. Neglectful

Correct answer: C

Rationale: Scientific research has demonstrated that the authoritative parenting style is most likely to lead to healthy psychological development in children. Authoritative parents are responsive to their children's emotional needs, set clear boundaries, and encourage independence. This balance fosters a positive environment for children to thrive emotionally and psychologically. Authoritarian parenting (choice A) focuses on strict rules without much warmth, which can lead to obedience but may hinder emotional development. Permissive parenting (choice B) lacks structure and rules, potentially resulting in children feeling insecure. Neglectful parenting (choice D) is characterized by a lack of responsiveness and involvement, leading to various negative outcomes for the child's development.

4. Finding meaning in life and dealing with death form core values in which of the following perspectives?

A. Existential
B. Humanistic
C. Behavioral
D. Object Relations

Correct answer: A

Rationale: The correct answer is A: Existential. Existentialism is a philosophical perspective that emphasizes individual existence, freedom, and choice. It focuses on finding meaning in life and dealing with fundamental issues such as death. This perspective is characterized by concepts like authenticity, responsibility, and the search for purpose. Choices B, C, and D are incorrect because while they may address certain aspects of human behavior or relationships, they do not specifically emphasize the search for meaning and the confrontation with death as core values.

5. One important contribution of Freud's theory was that ________.

A. he truly understood the role of women in society.
B. he heavily utilized experimental evidence to support his theories.
C. he applied the same principles to normal and abnormal behavior.
D. he increased the focus on positive growth for individuals.

Correct answer: C

Rationale: Freud's important contribution was that he applied the same principles to both normal and abnormal behavior. This approach allowed for a comprehensive understanding of human behavior without creating a rigid distinction between normal and abnormal psychology. Choice A is incorrect because Freud's theory did not primarily focus on the role of women in society. Choice B is incorrect as Freud's theories were largely based on clinical observations and case studies rather than experimental evidence. Choice D is incorrect as Freud's theory emphasized the unconscious mind and conflicts rather than solely focusing on positive growth for individuals.