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.