(2) B-2) Which of the following statements best describes the mechanism by which

Question

(2) B-2) Which of the following statements best describes the mechanism by which heterochromatin which forms at a eukaryotic telomere does not spread further into the chromosome? a) DNA bordering the telomere is always transcribed, so heterochromatin never forms there. b) Specialized non-histone proteins bind DNA sequences bordering telomeres and physically prevent heterochromatin spreading. c) Histone variants that prevent chromatin spreading are placed at the borders of telomeres d) telomeric heterochromatin only forms in the presence of telomerase. c) none of the above

Explanation / Answer

b.Specialized non-histone proteins binds DNA sequences bordering telomeres and physically prevent heterochromatin spreading.

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