In a certain species of fly, eye color is designated by the W+ and w alleles, with the W+ allele being dominant. Typical eye color is red for these flies, while a rarer white color variant exists. There is also a pink eye color that occurs when flies inherit both the W+ and w alleles. The pink phenotype is an example of ________.
Fill in the blank(s) with the appropriate word(s).
incomplete dominance
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Older individuals sometimes use large amounts of perfume because they lose their sense of smell; this is related to
A) central adaptation. B) a decrease in the number of olfactory receptors. C) a decrease in sensitivity of the olfactory cortex. D) sensory adaptation. E) None of the answers are correct.
Providing antibody-mediated or humoral immunity is primarily the job of (the)
A) macrophages. B) granulocytes. C) B cells. D) T cells. E) All of the answers are correct.
Which of the following is not true of testosterone?
A. It is a major male sex hormone. B. It is produced by the sustentacular cells in the seminiferous tubules. C. It has a significant effect on sex drive. D. It is responsible for the development of secondary sexual characteristics. E. All of these are true of testosterone.
The ________ joint is an example of a multiaxial joint.
A. humeroulnar B. humeroscapular C. metatarsophalangeal D. atlantoaxial E. proximal radioulnar