During the replication of DNA molecules, . During the replication of DNA molecules, . both strands of the parent molecule act as templates errors never occur the cell undergoes mitosis only one strand of the parent molecule acts as a template

both strands of the parent molecule act as templates

Explanation:

The process of DNA replication uses the existing parental DNA strands as a template. The enzyme helicase breakdown the hydrogen bonds between the base pairs of a DNA duplex to separate the two strands from each other. Each of these two DNA strands from a DNA duplex serves as a template for the process of DNA replication. Primase enzyme synthesizes primers on both the template strands which in turn are elongated by DNA polymerase enzyme.

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.

69 is the correct math for the amino acids