Answer:
Histone
Explanation:
Histones are the proteins that package the DNA in eukaryotes. DNA winds around a core of eight histones creating an structure called nucleosome that determines genome organization. Nucleosomes group and ungroup in an orderly manner allowing gene trasncription or silencing, respectively.
The theory of evolution proposed that a series of catastrophes or mass extinctions followed by repopulation could explain why species change over time
