Which is the best explanation for why adenine matches with thymine, and guanine matches with cytosine? 1.)the bases only have a set number of available bonds 2.)there is a specific order that they go in 3.)they are antiparallel 4.)they have magnets in them

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.