1.Bacteriorhodopsin is a protein that has 7 alpha helices embedded in the cell membrane. As such, how many start-transfer and stop-transfer sequences would it need?
7 start transfer sequences, 6 stop transfer sequences |
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7 of each, in alternating fashion |
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4 start transfer sequences and 3 stop transfer sequences |
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7 start transfer sequences 2. The role of GTP hydrolysis by the Signal Recognition Particle during cotranslational translocation to the ER is
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1. 4 start transfer sequences and 3 stop transfer sequences are required for 7 alpha helices embedded in the cell membrane.
Hence, the correct option is 4 start transfer sequences and 3 stop transfer sequences
2. The correct option is to release the SRP after docking to the translocon, so translation can resume.
3. The incorrect descriptions are:
There's no need for retrograde movement
Vesicular tubules move materials from the cis to medial Golgi networks
There are no vesicles moving in the anterograde direction
4. The correct option is Protons are pumped into the lumen of the thylakoid
1.Bacteriorhodopsin is a protein that has 7 alpha helices embedded in the cell membrane. As such,...