Ap psych unit 2 test

Ruth and Debbie are identical twins who were raised by the same family. Vince and Frankie are identical twins who were separated at birth and raised by different families. According to research on the heritability of personality traits, Ruth's and Debbie's personalities are statistically

• more likely to be similar to one another than are Vince’s and Frankie’s personalities

• likely to be as similar and dissimilar to one another as are Vince’s and Frankie’s personalities

• more likely to be dissimilar to one another than are Vince’s and Frankie’s personalities

• less likely to match on the personality dimensions of agreeableness and extraversion than are Vince and Frankie but not on other personality dimensions

• less likely to match on the personality dimensions of openness and neuroticism than are Vince and Frankie but not on other personality dimensions

Johnny often hits his brother even though his brother does not do anything to antagonize him. Johnny’s aggression is most likely due to a combination of

• his genetic makeup, the fact that aggression can be evolutionarily adaptive, and a lack of neuroplasticity

• developmental delays, the fact that aggression can be evolutionarily adaptive, and a lack of neuroplasticity

• the environment he grew up in, developmental delays, and the fact that aggression can be evolutionarily adaptive

• his genetic makeup, developmental delays, and a lack of neuroplasticity

• his genetic makeup, the environment he grew up in, and the fact that aggression can be evolutionarily adaptive

Madeline has previously been diagnosed with major depressive disorder. She has an identical twin sister, Josephine, and a nonidentical sister, Abigail. Neither of Madeline’s sisters have previously been diagnosed with major depressive disorder. Which of the following statements is true of Madeline’s sisters?

• Because their sister has been diagnosed, it is highly likely that both sisters will be diagnosed with major depressive disorder at some point in their lives.

• Neither sister is likely to be diagnosed with major depressive disorder because it is rare for family members to be diagnosed with the same disorder.

• The sisters are equally likely to be diagnosed with major depressive disorder in response to a stressful or traumatic event.

• Josephine is less likely to be diagnosed with major depressive disorder than Abigail in response to a stressful or traumatic event.

• Josephine is more likely to be diagnosed with major depressive disorder than Abigail in response to a stressful or traumatic event.

Which hormone is released when a person is under stress?

• Progesterone

• Testosterone

• Estrogen

• Oxytocin

• Cortisol

A person whose body is not producing enough testosterone is most likely to exhibit

• overly aggressive behavior

• fatigue

• memory loss

• increased hunger

• increased thirst

The hormone most associated with the fight or flight response is

• oxytocin

• epinephrine

• testosterone

• estrogen

• dopamine

A neuron sends a signal along its

• dendrite

• optic chiasm

• axon

• neurotransmitter

• nucleus

The medulla oblongata is a part of the

• cerebellum

• prefrontal cortex

• occipital lobe

• brain stem

• corpus callosum

The fatty casing that helps speed up the neural transmissions of a neuron is called the

• medulla

• myelin sheath

• cerebrum

• soma

• corpus callosum

Which of the following describes what happens when a neuron sends a signal?

• The neuron goes from being positively charged to briefly being negatively charged, and finally returns to being positively charged again. The magnitude of the negative charge is fixed regardless of the strength of the input signal it receives.

• The neuron goes from being negatively charged to briefly being positively charged, and finally returns to being negatively charged again. The magnitude of the negative charge is fixed regardless of the strength of the input signal it receives.

• The neuron goes from being negatively charged to briefly being positively charged, and finally returns to being negatively charged again. The magnitude of the positive charge varies depending on the strength of the input signal it receives.

• The neuron goes from being negatively charged to being positively charged, and then it remains at that level until it fires again. The magnitude of the positive charge varies depending on the strength of the input signal it receives.