試題詳解

52. A researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture. One of her colleagues suggested she try increased methylation of C nucleotides in a mammalian system. Which of the following results would she most likely see?
(A) increased chromatin condensation
(B) decreased chromatin concentration
(C) abnormalities of mouse embryos
(D) decreased binding of transcription factors
(E) inactivation of the selected genes