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why is nuclei stained purple but the cytoplasmic components are pink in eosin?
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- How does cystic fibrosis affect membranes of Nucleus Mitochondria Endoplasmic reticulum lysosomeWhat is the name of these yellow cells?There are certain cells that are multinucleated (having more than one nucleus). Which of the following is a possible explanation for this occurrence? A) The cell underwent repeated cytokinesis but no mitosis. B) The cell underwent repeated mitosis with simultaneous cytokinesis. C) The cell underwent repeated mitosis, but cytokinesis did not occur. D) The cell had multiple S phases before it entered mitosis.
- Which of the following regarding microtubules is LEAST correct? A)Microtubules do not have important functions in neurons B)Microtubules are important for anterograde axoplasmic transport C)No answer text provided. D)Microtubules are important for maintaining the structure of the neuron E)Microtubules are important for retrograde axoplasmic transportwhat is meant by the term "true nucleus"What structure is formed by when two sister chromatids areheld together by a centromere?
- What type of cell is circled in black? Hint: This is a single cell.Which is not true during the dissolution of nuclear membrane A) lamins dissociate into free lamin dimers B)fragmentation of membrane to vesicles C) inactivation of Cdc2 kinase protein resulting to chromosome condensation D)nuclear pore complex dissociatesList and describe the three main types of cytoskeleton. If you wanted to do immunocytochemistry to specifically stain each type of cytoskeleton, what is a protein that could be used for each cytoskeletal type (in other words, what is a unique protein for each cytoskeletal type)? What are three types of actin structures? Describe the involvement of actin structures in cell migration. How is the growth and shrinking of microtubules regulated? Then describe the roles of microtubules in: chromosomal separation during mitosis and the movement of organelles and vesicles within a cell. Describe a possible mechanism on how signaling pathways might impact the cytoskeleton, so that cell migration could be regulated in a localized manner within a multicellular organism. (hint: think about the possible transcriptional regulation of the G-protein regulators) What are 2 main challenges of protein targeting? Then describe one way these challenges are overcome during signal-based targeting and one way…
- in mitosis, when does the following occur: a) bivalents line up at the equatorial plane b) Univalents go to opposite polesIf a cell that had two copies of each chromosome, but problems with the spindle caused the sister chromatids to remain attached to each other and to only one spindle pole, what cells would result? a) cells with 2 copies of each chromosome and 2 copies of each chromosome b) cells with 3 copies of each chromosome and 1 copy of each chromosome c) cells with 6 copies of each chromosome and 2 copies of each chromosome d) cells with 4 copies of each chromosome and 0 copies of each chromosome e) cells with 1 copy of each chromosome and 1 copy of each chromosomeWhat are cytoplasmic inclusions?
