The Golgi apparatus packages materials into ________ for transport or export
A) nucleoli B) organelles C) vesicles D) plastids E) vacuoles
C
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One way to regulate gene expression is through the production of different sigma factors. These cause RNA polymerase to bind to different sets of promoters, thereby altering the pattern of gene expression.
Answer the following statement true (T) or false (F)
Order the following genomes from smallest to largest
i. Mus musculus ii. Homo sapiens iii. Escherichia coli iv. Saccharomyces cerevisiae v. Drosophila melanogaster A. iii, v, iv, i, ii B. iii, iv, v, i, ii C. iv, iii, v, ii, i D. iv, v, iii, ii, i E. v, iv, iii, ii, i
Which of the following is not involved in vasodilation or vasoconstriction?
a. hot or cold temperatures b. hormones c. oxygen supply d. nitric oxide e. angiotensin
Which of the following cytokines promotes the development of a cell-mediated immune response?
A. alpha interferon B. chemokines C. tumor necrosis factor (TNF) D. IL-4 (interleukin-4) E. IL-12