The general transcriptional machinery is composed of the regulatory proteins bound to the promoter of a eukaryotic
gene. Indicate whether the statement is true or false.
True
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Which one of the following is a monosaccharide and not a disaccharide?
A. lactose B. fructose C. sucrose D. maltose E. None of these sugars is a monosaccharide.
Molecules that regulate defense responses via signal transduction pathways are called ____
a. complement proteins b. histamines c. macrophages d. cytokines e. defensins
When you are lifting weights, the arterioles
servicing your biceps are
a. constricted. b. dilated. c. supplying less blood. d. shut down. e. doing more than one of these
Which of the following does NOT produce
variation? a. crossing over b. random alignment of chromosomes during meiosis c. asexual reproduction d. genetic recombination of alleles e. sexual reproduction