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. Normal human cells have ________

A. twenty-two chromosome pairs and one pair of sex chromosomes.
B. twenty-one trisomy chromosome pairs, one autosomal pair, and one pair of sex chromosomes.
C. twenty-one chromosome pairs and two trisomy chromosome pairs.
D. twenty-three chromosome pairs.

Correct answer: A

Rationale: Normal human cells have twenty-two chromosome pairs and one pair of sex chromosomes. This is the correct answer as it accurately describes the typical chromosome count in human cells. Choice B is incorrect because it mentions 'twenty-one trisomy chromosome pairs,' which is not characteristic of normal cells. Choice C is incorrect as it suggests having 'two trisomy chromosome pairs,' which is abnormal. Choice D is incorrect as it states 'twenty-three chromosome pairs,' which is not the standard count in normal human cells.

3. What term refers to the awareness that other people have their own intentions, desires, wants, and motives?

A. Theory of mind
B. Theory of personality
C. Theory of being
D. Theory of awareness

Correct answer: A

Rationale: The correct answer is 'Theory of mind.' Theory of mind is the understanding that others have their own thoughts, feelings, and intentions. This ability allows individuals to attribute mental states to others, enabling them to understand and predict behavior based on those mental states. Choices B, C, and D are incorrect because they do not specifically address the awareness of others' intentions, desires, wants, and motives.

4. How does the biopsychosocial model differ from the biomedical model?

A. The biopsychosocial model focuses solely on the biological aspects of disease.
B. The biopsychosocial model includes biological, psychological, and social factors, whereas the biomedical model focuses on only biological factors.
C. The biopsychosocial model is outdated and has been replaced by the biomedical model.
D. The biopsychosocial model is identical to the biomedical model.

Correct answer: B

Rationale: The biopsychosocial model differs from the biomedical model by considering biological, psychological, and social factors in understanding health and illness. Choice A is incorrect because the biopsychosocial model does not solely focus on biological aspects. Choice C is incorrect as the biopsychosocial model is not outdated but rather offers a more comprehensive approach. Choice D is incorrect as the two models are distinct in their considerations of factors beyond biology.

5. The baby coos and the mom smiles, so the baby coos again to get mom to smile again. Piaget would say that this action is an example of?

A. Reflexes
B. Primary circular reactions
C. Secondary circular reactions
D. Tertiary circular reactions

Correct answer: C

Rationale: The correct answer is C: Secondary circular reactions. Secondary circular reactions are repeated actions that infants engage in to trigger a response from the environment, such as the baby cooing to make the mom smile. This behavior is characterized by a focus on the external environment and the repetition of actions to achieve a desired response. Choices A, B, and D are incorrect. Reflexes (choice A) are automatic, involuntary responses to a stimulus, while primary circular reactions (choice B) involve the repetition of actions primarily for the infant's own enjoyment rather than to elicit a response from the environment. Tertiary circular reactions (choice D) refer to the experimentation with new behaviors and variations in the way the infant interacts with the environment.