What is base-pairing? In DNA, which bases are complementary?

1. fold your hands together so your thumbs cross over ,and look at your thumbs. which thumb feels most "comfortable" on top is actually controlled by a gene. the left thumb folding over the right thumb is a domi

Which anatomical plane is the only one that could not show both the sternal region and vertebral region

What organelle makes protein for use outside the cell?