what do genes consist of
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Psychology 101 Exam 3 Test

1. What are genes made of?

Correct answer: C

Rationale: Genes are made of DNA, which is the genetic material that carries the instructions for the development, functioning, growth, and reproduction of organisms. While chromosomes contain genes, they are not what genes themselves are made of. Proteins are involved in gene expression and regulation, but they are not the primary material genes consist of. Trisomes is an incorrect term in this context and does not relate to the composition of genes.

2. What is the sequence in which growth starts at the center of the body and moves toward the extremities?

Correct answer: B

Rationale: The correct answer is B: Proximodistal pattern. This pattern describes growth starting at the center of the body and moving towards the extremities. Choice A, Cephalocaudal pattern, refers to growth starting from the head and moving downwards, which is not the sequence described in the question. Choice D, Gene-environment correlation, does not relate to the sequential pattern of growth described in the question, making it incorrect.

3. Which of the following is not a common method for studying genetic influences?

Correct answer: A

Rationale: The correct answer is A. Studying specific gene defects is not a common method for investigating genetic influences. Choices B, C, and D are common methods used in genetic research. Twin studies help determine the heritability of traits, adoption studies compare similarities between adopted individuals and their adoptive families versus biological families, and family history studies track the inheritance patterns of traits within families.

4. Genes ________

Correct answer: D

Rationale: Genes determine the range of characteristics a person has. Choice A is incorrect because genes do not solely determine behavior, as behavior is influenced by a combination of genetic and environmental factors. Choice B is incorrect because while genes can contribute to the risk of developing mental disorders, they do not directly cause them. Choice C is incorrect as genes contribute to but do not solely determine all characteristics a person will have.

5. Children raised in orphanages tend to have ________.

Correct answer: B

Rationale: The correct answer is B: 'less cortical gray matter than those raised by their parents.' Studies have shown that children raised in orphanages tend to have less cortical gray matter compared to those raised by their parents. This is due to the lack of individualized care, attention, and stimulation that can negatively impact brain development. Choices A, C, and D are incorrect because there is no direct correlation between cortical gray matter and the number of friendships when comparing children raised in orphanages and those raised by their parents.

Similar Questions

Michael, age 16, has recently gained a considerable amount of weight but has not grown any taller. His father experienced a similar pattern of growth when he was a teenager. Theorists who suggest that Michael’s growth pattern was inherited from his father emphasize the ________ side of the nature-nurture debate?
Rita shows better control over her eating habits at 2.5 years than her brother Richard did at the same age. Why?
A psychologist who is interested in the psychological effect of aging would most likely specialize in?
Which of the following statements is not true about selective mutism?
a researcher found that there is a negative relationship between perceived parental perfectionism and life satisfaction. what does this mean?

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