Fraternal twins arise from two different fertilized eggs and are called ____ twins
Fill in the blank with the appropriate word.
dizygotic
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Assuming that each heavy and light chain has an equal chance to be expressed in each cell, approximately how many possible antibodies can be expressed?
A) 192 B) 1,920 C) 19,200 D) 1,920,000
How can analysis of mammalian genomes be used to detect and treat human disease? Check all that apply.
_____ The genomes of the mammalian relatives of humans are the best targets for discovering new treatments for human diseases. _____ Comparing the genomes of parasite and host is likely to reveal good drug targets to eliminate the parasite without harming the host. _____ A comparison of mouse and human genomes would help reveal functions for previously unidentified human genes. _____ A comparison of human and mouse genomes would help observe DNA sequences that evolved prior to the evolution of mammals.
How is antibody-mediated immunity different from cell-mediated immunity?
a. Antibody-mediated immunity requires lymphocytes; cell-mediated immunity does not. b. Antibody-mediated immunity is innate; cell-mediated immunity is adaptive. c. Antibody-mediated immunity is adaptive; cell-mediated immunity is innate. d. Antibody-mediated immunity requires both B and T cells; cell-mediated immunity requires T cells but not B cells. e. Antibody-mediated immunity requires T cells; cell-mediated immunity requires B cells.
The antifungal drug that can be used to treat serious systemic fungal infections is ________.
A. amphotericin B B. metronidazole C. sulfa drugs D. griseofulvin E. nystatin