When antibodies or other substances in serum cross-react with the test reagents, a false positive result can occur.
Answer the following statement true (T) or false (F)
True
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How does DDT in the environment affect many birds?
A. stunted growth of chicks B. chronic liver failure in adults C. advancing neurological degeneration D. decreased reproductive rate
White blood cells patrol fat (aka __________ )
tissue. a. cartilage b. adipose c. loose connective d. dense connective e. all of these
Which statement about the structure of neurons is true?
a. Dendrites carry impulses away from the cell body. b. Axons may form branches known as collaterals. c. Nerve impulses travel down the axon toward the cell body. d. Dendrites are often myelinated for faster conduction. e. Synapses occur between the cell body and its axon.
Which of the following normally leads to the production of functional messenger RNA in eukaryotic cells?
(A) A decrease in the rate of ribosome synthesis (B) The removal of portions of RNA known as intervening sequences (introns) (C) A decrease in RNA polymerase activity (D) The replication of new messenger RNA molecules from existing messenger RNA molecules