Retrotransposons are flanked by long terminal repeat sequences which are several hundred base pairs long. In contrast, DNA (Deoxyribo Nucleic Acid) transposons contain terminal inverted repeats. Hence, the correct answer is option (a).
• Both retrotransposons and DNA transposons duplicate the target site upon insertion. Hence, option (b) is not correct
• DNA transposons do not transpose via and RNA (Ribo Nucleic Acid) intermediate. Hence, option (c) is not correct
• DNA transposons are found in prokaryotes. Hence, option (d) is not correct