Viruses contain both DNA and RNA
Indicate whether the statement is true or false
FALSE
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The Fc region on IgG
A. interacts with complement. B. attaches to receptors on macrophages. C. reacts with and coats the antigen. D. contains a variable region. E. interacts with complement AND attaches to receptors on macrophages.
Which of the following statements about the placenta is false? a. The mother's body disposes of wastes for both mother and child
b. The placenta begins forming early in pregnancy. c. Maternal and fetal blood mix in the placenta. d. Embryonic blood vessels exchange substances with maternal blood.
Four of the five actions listed below are responses of
the body to heat. Select the exception. a. increased sweating b. increased retention of blood in the core region c. decreased rate of muscle activity d. increased water loss e. dilation of peripheral blood vessels
Which of the following would make a human disorder-causing allele or gene easiest to locate?
A) a genomic library for the chromosome on which the gene is located B) a cDNA library for the chromosome on which the gene is located C) a group of 10 known candidate genes D) a transposon known to segregate with the gene E) a single patient with a chromosomal translocation associated with the gene