How does hydrogen peroxide get into cells

Which of the following is a cause of a dna mutation? o a. the linking of amino acid subunits into a long chain o b. the transcription of dna into rna o c. an error in the repair of damaged dna d. the diffusion of molecules across the cell membrane submit

What is the period of cell life when it is conducting

Some substances but not other can cross the (blank) membrane of a cell