Regarding a mismatch of either the Rh antigen or the AB antigen, both
A.
result in destruction of red blood cells by the foreign antigen.
B.
utilize complement to destroy red blood cells.
C.
utilize antibody-dependent cellular cytotoxicity to destroy the red blood cells.
D. result in destruction of only leukocytes.
E.
utilize either complement or antibody-dependent cellular cytotoxicity to destroy red blood cells.
E
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Cleavage-stage cells are called ____, which form a solid ball or layer called a ____
a. morulas; blastomere b. blastocoels; blastomere c. blastomeres; morula d. blastomeres; blastula e. blastulas; blastocoel
Isoniazid is a narrow-spectrum antibiotic that ________.
A. is one of the few drugs effective against Mycobacterium tuberculosis B. is not useful as a chemotherapeutic agent C. is one of the few drugs effective against systemic fungal infections D. None of the choices are correct.
Which of the following is an undesirable
characteristic of the cuticle? a. It restricts the movement of water. b. It is transparent to sunlight. c. It coats the exposed surface of leaf epidermal cells. d. It restricts the movement of carbon dioxide. e. None of these is undesirable.
Two-component signal transduction systems are found in the Bacteria, but not in Archaea.
Answer the following statement true (T) or false (F)