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Question 4
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- The key components of desmosomes are cadherins and. actin microfilaments intermediate filaments microtubulesBy definition, a pericentric inversion includes the ___________ . centromere chiasma telomere synapseQuestion 5 What is the role of TRF2 at the telomere? extends the 3' end of the G+T strand O packages DNA into heterchromatin O forms a platform for microtubule attachment O facilitates formation of the t-loop at the telomere and recruits RAP1
- Models of higher-order compaction suggest that thenucleosomal fiber is _____ into a shorter but widerfiber.Describe how the duplicated bacterial chromosomes are distributed into new daughter cells without the direction of the mitotic spindle.What would happen if anaphase proceeded even though the sister chromatids were not properly attached to their respective microtubules and lined up at the metaphase plate?
- 20 ਨ D the hammer 3"Like the lumen of the ER, the interior of the nucleus is topologically equivalent to the outside of the cell" is true or false.There are many organelles that appear similar to lysosomes yet they are endocytotic vesicles. What is the accepted histochemical method to unequivocally identify a lysosome from other similar appearing organelles?
- QUESTION 30 If a cell could not make histones, what would happen? O Its DNA would not be packaged properly O Its DNA would get shorter O It could not transport DNA outside of the nucleus Transcription would not be able to take place.QUESTION 4 If a human cell contains 46 chromosomes, which are often "decondensed," and the nucleus is 5-10 microns in diameter, it would be fair to say that the nucleus is a -place. spacious happy crowded lonely QUESTION 5 When human chromosomes have been stained with Giemsa, the dark bands correspond to chromatin that is called "transcri ptionally active," and the light bands correspond to chromatin that is called "transcriptionally inactive." O True O FalseMaintaining nuclear RanGTP levels is critical for nucleo-cytoplasmic transport. Describe how mutations that disrupt RanGEF function would affect the movement of proteins coming in and going out of the nucleus.
