On Joanna's Vintage Decor Shop. I started a local boutique and partnered with Chip to implement the Magnolia style in the homes he was flipping, Joanna says. We later branched out and started renovations in the central Texas area.. From: Chip Gaines and Joanna Gaines.
Figure Detail. The use of restriction enzymes as a way to cut DNA molecules was first demonstrated in a classic study by Johns Hopkins biochemist Daniel Nathans and his graduate student Kathleen Danna (Danna & Nathans, 1971).igure Detail. The use of restriction enzymes as a way to cut DNA molecules was first demonstrated in a classic study by Johns Hopkins biochemist Daniel Nathans and his graduate student Kathleen Danna (Danna & Nathans, 1971).
You can think of restriction enzymes as little molecular scissors that slide along the DNA and cut the sugar-phosphate backbone wherever they find their restriction site. The figure shows how a restriction enzyme can make a cut in a circular piece of DNA and turn it into a linear piece.