As each cell in our body prepares for mitosis, its chromosomes start to look different. What are the changes in chromosome appearance that accompany the entry into M phase? Indicate true (T) and false (F) descriptions below. Your answer would be a five-letter string composed of letters T and F only, e.g. TTFFT. ( ) The chromosomes become readily visible by the naked eye. ( ) The chromosomes coil up further to become about 10 times shorter. ( ) Each chromosome is condensed and then replicated to form two sister chromatids. ( ) The typical diameter of a mitotic chromosome arm is about 70 nm. ( ) The two sister chromatids are disentangled from each other by the time chromosome condensation is complete.
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Indicate true (T) and false (F) statements below regarding meiosis in eukaryotic cells. Your answer would be a four-letter string composed of letters T and F only, e.g. TFFF. ( ) Bivalents form before prophase I. ( ) Crossing-over begins before the synaptonemal complex assembly. ( ) Chiasmata can first be seen under the microscope after the disassembly of the synaptonemal complexes. ( ) All recombination events lead to crossovers.
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Question 1 Match each stage of the cell cycle with the major events that occur during that stage. chromatids separate and are pulled to opposite sides of the cell chromosomes are duplicated nuclear membrane forms around chromosomes chromosomes are located in the center of the cell chromosomes become visible A. prophase B. interphase C. anaphase D. metaphase E. telophase Question 2 During meiosis, cells go from diploid to haploid. True False
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