G2 phase (Second Gap Phase): The phase right before prophase. The cell continues to increase in mass.<ref>http://biology.about.com/od/mitosis/ss/mitosisstep.htm</ref> | G2 phase (Second Gap Phase): The phase right before prophase. The cell continues to increase in mass.<ref>http://biology.about.com/od/mitosis/ss/mitosisstep.htm</ref> |