_____ have 46 chromosomes, whereas _____ have 23
Fill in the blank(s) with the appropriate word(s).
primary spermatocytes; spermatids
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Urination is controlled by the operation of two sphincter muscles, both of which are made of smooth muscle fibers and are voluntarily controlled.
a. true b. false
A homozygous recessive genotype would be represented by _______.
a) bb B) It depends on the gene. c) Bb d) BB
One of the objects of desensitization procedures is to
A. Control transplantation rejection B. Increase the level of IgE in the vascular system C. Stimulate the production of interferon D. Destroy immune complexes that may have formed in the blood vessels E. Reduce the number of basophils and mast cells to which IgE attaches
The wavelength of light used plus the numerical aperture governs
A. size of the field. B. magnification. C. resolution. D. illumination. E. All of these choices are correct.