Which of the following events during cell division creates genetic variation amongst the gametes? (Check all that apply.)
A. Genetic exchange between chromatids of replicated chromosomes
B. Crossing over
C. Random assortment of chromosomes along the equatorial plane
D. Genetic exchange between chromatids of homologous chromosomes
Answer: D
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Which of the following combining forms refers to breast?
A. mast/o B. o/o C. cervic/o D. lact/o
Which of the following applies to postganglionic neurons of the ANS sympathetic division?
A) Some fibers do not synapse until the collateral ganglia. B) Their cell bodies are situated in the lateral gray horns of the spinal cord. C) Their cell bodies are located between spinal segments T1 and L2. D) Their axons synapse with the peripheral effector organs. E) Their axons emerge along the ventral roots of the spinal cord between segments T1 and L2.
Which structure is part of the connection of the uterus to the pelvic cavity?
a) B b) C c) E d) G e) H
Where are the cell bodies of the postganglionic neurons that are active when a person is crying?
A. The otic ganglion B. The pterygopalatine ganglion C. The aortic plexus D. The submandibular ganglion E. The ciliary ganglion