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Indicate true (T) and false (F) statements below regarding a genome and its evolution. Your answer would be a four-letter string composed of letters T and F only, e.g. FFTF.
( ) The genome of the last common ancestor of mammals can be investigated only if a DNA sample of the ancestor can be obtained.
( ) All of the "ultraconserved" elements found in the human genome have been shown to encode long noncoding RNAs.
( ) If a mouse carrying a homozygous deletion of a highly conserved genomic sequence survives and shows no noticeable defect, the highly conserved sequence has to be functionally unimportant.
( ) The "human accelerated regions" are genomic regions that are found in humans with no homologs in chimpanzees or other animals.
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