A pair of chromosomes that form an X-like structure is joined in the middle. The place where the two strings meet is called a(n) __________
a. chromosection.
b. chromochiasm.
c. central intersection.
d. centromere.
Answer: D
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The depolarizing or hyperpolarizing current that results from neurotransmitter activity at the synapses of the receiving neuron drifts to the junction of the ____
a. dendrites and cell body b. glia and dendrites c. cell body and axon d. axon and nucleus
Which of the following individuals has the greatest chance of contracting a sex-linked genetic abnormality?
A. A male with a mother with muscular dystrophy B. A female with a mother with muscular dystrophy C. A male with a father with muscular dystrophy D. A female with a father with muscular dystrophy
Connie is 30 years old, and she always seems to be grumpy and irritable. She has a poor self-image and is usually socially withdrawn. Although she never feels totally dejected and out of control, she feels as if her life is not very exciting or enjoyable. People who have known Connie since she was a teenager say she has always been this way. Connie's symptoms are consistent with those seen in:
a. dysthymic disorder b. negative schizophrenia c. antisocial personality disorder d. major depression
In DSM-IV-TR, Axis I is used to
a. indicate the presence of personality disorders or mental retardation. b. indicate the presence of clinical disorders other than personality disorders and mental retardation. c. list relevant medical conditions. d. quantitatively estimate an individual's overall level of functioning.