INTERSPERSED REPETITIVE SEQUENCES
\ˌɪntəspˈɜːsd ɹɪpˈɛtɪtˌɪv sˈiːkwənsɪz], \ˌɪntəspˈɜːsd ɹɪpˈɛtɪtˌɪv sˈiːkwənsɪz], \ˌɪ_n_t_ə_s_p_ˈɜː_s_d ɹ_ɪ_p_ˈɛ_t_ɪ_t_ˌɪ_v s_ˈiː_k_w_ə_n_s_ɪ_z]\
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Copies of transposable elements interspersed throughout the genome, some of which are still active and often referred to as "jumping genes". There are two classes of interspersed repetitive elements. Class I elements (or RETROELEMENTS - such as retrotransposons, retroviruses, LONG INTERSPERSED NUCLEOTIDE ELEMENTS and SHORT INTERSPERSED NUCLEOTIDE ELEMENTS) transpose via reverse transcription of an RNA intermediate. Class II elements (or DNA TRANSPOSABLE ELEMENTS - such as transposons, Tn elements, insertion sequence elements and mobile gene cassettes of bacterial integrons) transpose directly from one site in the DNA to another.
By DataStellar Co., Ltd
