A dikaryotic cell will originate from
a. a sperm that fertilizes an egg.
b. a spore that germinates into a hypha.
c. alternation of generations.
d. pollination.
e. fusion of haploid cells from plus and minus mating types.
E; The cytoplasm from two haploid cells fuses but the nuclei do not. This results in two haploid nuclei in one cell (dikaryon).
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A test that uses gelatin particles sensitized with T. pallidum subsp. pallidum antigens to detect specific antitreponemal antibodies in patient serum is called the __________ test
a. RPR b. FTA-ABS c. VDRL d. TP-PA
What is the general trend in diversity in vascular plants for the past 145 million years?
What will be an ideal response?
In animal metabolism, most of the monomers released by digestion of food macromolecules are metabolized to provide energy. Only a small portion of these monomers are used for synthesis of new macromolecules. The net result is that
a. water is consumed during homeostasis, but water is generated during periods of growth. b. water is generated during homeostasis, but water is consumed during periods of growth. c. water is consumed by animal metabolism. d. the water consumed is exactly balanced by the water generated, to maintain homeostasis. e. water is generated by animal metabolism.
When a gene is uninterrupted, __________
a. it does not get expressed b. the restriction map of its DNA corresponds exactly with the map of its mRNA c. the restriction map of its DNA and mRNA are different, except at each end d. the restriction map of its DNA and mRNA are different throughout both sequences e. None of the above