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How do proteins become embedded in the membrane of the endoplasmic reticulum?a. by splicing of proteins on either side of the ER membrane. b. via stop- and start-transfer sequences that stop and start translocation of a polypeptide through the ER membrane, resulting in transmembrane proteins. c. by post-translational import can results in a transmembrane ER protein. d. by protein chaperones that insert polypeptides into the ER membrane. e. via transit sequences that target polypeptides made in the cytosol for the ER membrane.
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Punctuated equilibrium verses gradualism have long been contested as ways in which species evolve. choose the best evidence for gradualism.
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Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?
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Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food
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Biology, 22.06.2019 11:00
This is the main structural axis of the plant that supports leaves, flowers and fruits; transports fluids; stores nutrients and produces new tissue.
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How do proteins become embedded in the membrane of the endoplasmic reticulum?a. by splicing of prote...
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