__________ are antigen-presenting cells in the immune system
a. Natural killer cells
b. Plasma cells
c. Macrophages
d. T helper cells
e. Cytotoxic T cells
C
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Which of the following is NOT a characteristic by which a population is in equilibrium according to Hardy-Weinberg equation?
A. The population is large. B. There is no migration into or out of the population. C. There is no selection against a given genotype. D. There is no mutation in the gene being studied. E. There is nonrandom mating
Swarmer cells are
A. formed by Myxobacteria. B. formed by sheathed bacteria. C. also known as coliforms. D. part of the green nonsulfur bacteria.
Epitopes or antigenic determinants
A. are parts of the antibody molecule. B. are T cell receptors. C. are a portion of antigen recognized by antibody. D. may be approximately 10-25 amino acids in length. E. are a portion of antigen recognized by antibody AND may be approximately 10-25 amino acids in length.
Meiosis II is similar to mitosis because _____
a. both result in the production of diploid daughter cells b. both result in the production of haploid daughter cells c. DNA replication immediately precedes both meiosis II and mitosis d. homologous chromosomes are separated in meiosis II and mitosis e. sister chromatids are separated in meiosis II and mitosis