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- Mutations in the nuclear laminproteins cause a large number ofdiseases called laminopathies. What dowe not understand about the nuclearlamina that could account for this fact?Why is precise division of the genetic material during mitosisimportant?Arrange the following terms in order of increasing specialization: Oligopotency, pleuripotency, unipotency, multipotency.
- How are polyribosomes on theendoplasmic reticulum membranearranged so that the next initiatingribosome will find an unoccupiedtranslocator?What is the order of events for importing a protein to endoplasmic reticulum lumen?why is nuclei stained purple but the cytoplasmic components are pink in eosin?
- a) Name the cellular process shown below b) Where did this process start (left or right)?How does a cell maintain theright amount of every component(organelles, molecules), and how doesit change these amounts as needed(for example, to greatly expand theendoplasmic reticulum when the cellneeds to produce large amounts ofsecreted proteins)?What is the major function of Shugoshin during interphase?
- Ribosomes in the cytoplasm (cytosol) capture mRNA that can be translated into an enzyme (in this case a protease) to the lysosome. a) Describe what happens from the time the enzyme (protease) begins to form in the cytoplasm until it end up in the lysosome and explain how the enzyme is transported to the lysosome, Explain in terms of the clathrin and thethering proteinsList three potential organelle destinations for a free ribosome (cytosolic-produced) protein via transmembrane protein translocation:In some eukaryote organisms, myocytes are a type of stem cell that become Muscle cells. These cells filled with a protein called myosin. Such cell products are stored in cell structures that are formed from: A) the nucleus, B) from the smooth ER as vesicles, C) are engulfed into the cell by phagocytosis, D) are released from the cell by the process of Exocytosis, E) the lysosomes.