The inactivation of one X chromosome is established by the directed spreading of heterochromatin. The silent state of this chromosome is ______ in the subsequent cell divisions.
(a) completed
(b) switched
(c) erased
(d) maintained
Answer: D
The inactivation of one X chromosome is established by the directed spreading of heterochromatin. The silent state of this chromosome is ______ in the subsequent cell divisions.
(a) completed
(b) switched
(c) erased
(d) maintained
Answer: D