27. Which one is the component of linker histone?(A)H1(B)H2A(C)H2B(D)H3(E)H4

35. Synaptic signaling between adjacent neurons is like hormone signaling in which of the following ways?(A)It sends its signal molecules through the blood.(B)It sends its signal molecules quite a distance.(C)It requires potassium ions.(D)It persists over a long period.(E)It requires binding of a signaling molecule to a receptor.