Dna methylation is process that cells undergo frequentlly to 'turn off'' gene expression a methyl group, which is a small spherical shaped molecule comprised of one caron and 3 hydrogens, attaches at a specific site on a nitrogenous base. a nitrogenous base is either has a penthagonal shape or a hexagonal shape, which of the fllowing would most likely likit methylation from proceeding properly?
a. improper orientation of molecles
b. lack of energy
c. sub-optimal temperature
d. lack of a collision

C, small, hard spheres with insignificant volumes

Electron equations of the given changes are as follow,a)                              cu      →      cu⁺²  + 2e⁻b)                              mg⁺²  +  2 e⁻      →      mgc)                              cl⁻    →      cl  +  1e⁻d)                              s  +  2 e⁻    →      s²⁻e)                                o²⁻      →      o  +  2 e⁻f)                              p  +  3 e⁻    →      p³⁻g)                              fe²⁺    →      fe³⁺  + 1 e⁻h)                              s²⁻    →      s⁴⁺  +  6 e⁻