The Fermat primes and the Mersenne primes form a subset of the binary palindromic primes. This definition of palindrome thus depends on complementary strands being palindromic of each other. These short complementary palindromic sequences are called P nucleotides. A palindromic nucleotide sequence is capable of forming a hairpin. Ambigraphic notations readily visualize complementary nucleic acid stretches such as palindromic sequences. Other examples of palindromic polynomials include cyclotomic polynomials and Eulerian polynomials. BIMEs are palindromic repeats sequences that are usually found between genes. Some recognize palindromic sequences while others have asymmetric recognition sites. This sequencing by ligation method has been reported to have problems sequencing palindromic sequences. This sequencing by ligation method has been reported to have some issue sequencing palindromic sequences. Many of these variations are palindromic sequences and potential errors due to replication. Palindromic sequences play an important role in molecular biology. In theory, there are two types of palindromic sequences that can be possible in DNA. Palindromic numbers can be considered in numeral systems other than decimal. These are the sites where a methyl group can be attached to the palindromic sequence.