Which of the following is NOT a basic taste category identified in humans?
a. bitter
b. salty
c. spicy
d. sour
e. sweet
C
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Arrange the steps of an allergic response in the proper order
1. Allergic symptoms appear. 2. Allergen binds with IgE. 3. IgE combines with mast cell receptors. 4. Mast cells release histamine. 5. Plasma cells sensitized.
a. 5, 3, 2, 4, 1 b. 1, 5, 2, 4, 3 c. 5, 2, 4, 3, 1 d. 1, 4, 5, 2, 3 e. 4, 5, 2, 3, 1
Evolution is the result of changes in the genetic makeup of species within the same population, throughout many generations. This can produce organisms well suited for their environments. Evolution consists of adaptation and natural selection. Adaptation can be distinguished from natural selection, as factors in evolution, in that natural selection
A. is not successful reproduction. B. describes the variability of the environments and conditions in which populations live. C. is the ability to reproduce regardless of its genetic traits. D. produces generations with traits within their population that allow them to reproduce and thrive. E. results from genetic mutations in asexual reproduction, whereas adaptation happens only in sexual reproduction.
Four of the five answers listed below are
produced by the same germ layer. Select the EXCEPTION.
a. nervous system b. muscle system c. circulatory system d. reproductive system e. excretory system
In exon skipping, ____________________ are used to target specific exons for skipping by blocking splicing signals
during pre-mRNA processing. Fill in the blank(s) with the appropriate word(s).