The double-stranded DNA (Deoxyribonucleic acid) breaks into two separate strands when the temperature is increased, such as in the denaturation step of the PCR (Polymerase Chain Reaction), because the increase in the temperature makes the hydrogen bonds between the nitrogenous bases to break. The double hydrogen bond between the adenine and thymine, and the triple hydrogen bond between the guanine and cytosine breaks apart when heated causing the two DNA strands to fall apart.
Hence, the answer is the breaking of the hydrogen bond between the nitrogenous bases.
Hydrogen bonds can FORM between guanine and cytosine, and between adenine and thymine
Answer:
Explanation:
The scientific method. When conducting research, scientists use the scientific method to collect measurable, empirical evidence in an experiment related to a hypothesis often in the form of an if/then statement, the results aiming to support or contradict a theory.
All arthropods are invertebrates with an exoskeleton, segmented body, and jointed appendages.