Although useful so far only against some rare forms of cancer, interferons activate ____
a. B-lymphocytes
b. dendritic cells and B-lymphocytes
c. natural killer cells and cytotoxic T cells
d. helper-T lymphocytes and dendritic cells
e. fibroblasts and B-lymphocytes
ANSWER: c
Biology & Microbiology
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A deficiency of ____ produces a goiter in humans
a. calcium b. iodine c. magnesium d. manganese e. zinc
Biology & Microbiology
The two physical factors that vary most in terrestrial environments are ________ and ________
Fill in the blank(s) with correct word
Biology & Microbiology
In which of the following does fertilization take place within a woman's body?
A. GIFT B. ICSI C. PGD D. IVF E. ZIFT
Biology & Microbiology
________ is rare and occurs most commonly when repetitive regions of homologous chromosomes misalign, resulting in partial deletions and partial duplications
Fill in the blank(s) with correct word
Biology & Microbiology