In an experimental situation, a student researcher inserts an mRNA molecule into a eukaryotic cell after she has removed its cap and poly-A tail. Which of the following would you expect her to find?
A) The mRNA is quickly converted into a ribosomal subunit.
B) The cell adds a new poly-A tail to the mRNA.
C) The mRNA attaches to a ribosome and is translated, but more slowly.
D) The molecule is digested by enzymes because it is not protected at the end.
D
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. If the number of people who become ill during an epidemic rises gradually, this is called a(n)
A. propagated epidemic. B. promulgated epidemic. C. common source epidemic. D. index epidemic.
Unlike most angiosperms, Theobroma cacao flowers are produced
a. at the tips of floral shoots. b. from buds on the roots. c. from buds on the tree trunk. d. asexually. e. only on trees grown on plantations.
The entire structure indicated by “C” is a
__________ gametophyte. a. moss b. liverwort c. hornwort d. fern e. gymnosperm
When tracing the path of blood, the blood vessles that follows the renal artery is the
a. peritubular capillary b. efferent arteriole c. afferent arteriole d. renal vein