Antimetabolites are used to treat various cancers and

Antimetabolites are most commonly used to treat leukemias and cancers of the breast, ovary, and the intestinal tract. But since the drugs work to slow the growth of any quickly dividing cell type, they can be used to treat various others cancers, too.

Explanation:

the concept of nucleosome occupancy, which reflects the fraction of cells from the population in which a given region of dna is occupied by a histone octamer

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.