試題詳解

15. The nuclear genomes of eukaryotes are composed of different categories of sequences. Repetitive sequences are one type of the categories. Which of the following is an example of highly repetitive sequences?
(A) Histone gene cluster .
(B) Ribosomal RNA genes.
(C) Homologous genes.
(D) Alu elements.
(E) Multigene families.