30. What is a telomere? (A) the mechanism that holds two sister chromatids together (B) DNA replication during telophase (C) the site of origin of DNA replication (D) the ends of linear chromosomes

8. The acetylation of lysines on the histone tails... (A)loosens chromatin structure by adding positive charges to histones. (B) recruits the heterochromatin protein HP1, resulting in the establishment of heterochromatin. (C) can be performed on methylated lysines only after they are first demethylated. (D) is a covalent modification and is thus irreversible.

30. What is a telomere?
(A) the mechanism that holds two sister chromatids together
(B) DNA replication during telophase
(C) the site of origin of DNA replication
(D) the ends of linear chromosomes

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