#Question id: 4359
#Unit 3. Fundamental Processes
DNA methylation and histone acetylation are examples of which of the following processes?
#Question id: 32370
#Unit 2. Cellular Organization
#Question id: 11341
#Unit 2. Cellular Organization
Why can’t triacylglycerols be significant components of lipid bilayers?
#Question id: 2883
#Unit 2. Cellular Organization
Which, if any, of the following statements is incorrect?
I. In X-chromosome inactivation, the inactivated X chromosome is epigenetically silenced by a transcript, the XIST RNA, that is produced from the active X chromosome.
II. The XIST RNA works by coating most of the X chromosome that is to be inactivated and then recruiting Polycomb proteins to condense the chromosome.
III. The inactivated X chromosome carries the kinds of histone modification that are typical of heterochromatin.
IV. The pattern of X-chromosome inactivation is made randomly but once it has been established the same pattern of X-inactivation is propagated through all mitotic and meiotic cell divisions.
#Question id: 32297
#Unit 1. Molecules and their Interaction Relevant to Biology
