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.
Answer: D
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Which of the following physical features make
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a. their skin b. their lungs c. their eggs d. their four limbs e. their brains
Exocrine glands:a
have products that are transported via the circulatory system. b. lack ducts. c. include goblet cells and sweat glands. d. release hormones. e. lack epithelial tissue.
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a. endoderm b. mesoderm c. ectoderm d. epiderm