'DNA Is Not Destiny' is a book by Steven J. Heine that challenges the belief that genes determine human behavior and destiny. Heine argues that while genes play a role, many environmental factors also shape who we are, and he calls for a more nuanced view of the nature vs. nurture debate. Who said this?

Calcium competent cells are bacterial cells that are treated with calcium chloride to increase their ability to uptake plasmid DNA. The calcium ions disrupt the cell membrane and make it more permeable to DNA, increasing the efficiency of transformation. These cells are commonly used in molecular biology experiments to introduce foreign DNA into bacterial cells. Who said this?