The exchange of genetic material between non-sister chromatids that may result in new gene combinations on the chromosomes is called ____________
A.
crossing over
B.
synapsis
C.
duplication
D.
reduction division
E.
random assortment
A
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Which of the following is not a role of complement in the immune system
a. increasing the permeability of blood vessels b. attracting immune cells to the site of infection c. marking foreign cells for destruction d. all of the above are roles of complement in the immune system
Carbonic anhydrase is crucial for
a. CO2 transport in blood. b. conversion of CO2 into bicarbonate ion. c. production of NO. d. both (a) and (b) above. e. both (a) and (c) above.
Reflexes that activate muscles on the same side of the body as the stimulus are called
A) ipsilateral. B) bilateral. C) contralateral. D) collateral. E) antilateral.
____ are part of cell-mediated immunity while ____ are part of antibody-mediated immunity
A. B cells, NK cells B. Antibodies, antigens C. T cells, B cells D. Macrophages, antibodies E. Neutrophils, monocytes