Answer:
The correct answer is "the bottleneck effect".
Explanation:
The bottleneck effect, also known as a population bottleneck or genetic bottleneck, is defined as sharp reduction of a species population that occurs either by environmental effects or as a consequence of human activities. The dramatical crash the that population of American bison had due to hunting and other problems is an example of a species suffering the bottleneck effect.
<span>What ensures that DNA molecule is replicated
exactly as its original strand is with the ability of the DNA to make way and
let the base pairs match with each base. This enables them to form the same
strands so that it is identical and not different with the original strand.</span>
