Answer:
2. polymerase chain reaction
Explanation:
In Sanger's method, the process is used to make copies of unknown DNA sequences with different lengths/fragments using ddNTPs by chain termination method.
On the other hand, in polymerase chain reaction (PCR) complete copies of gene clones are required. Thus, there is no need of fragment formation so that it does not require ddNTPs.
It attaches to chromosomes to split them into two identical sets. This allows the cell to reproduce exact copies of itself (assuming we don’t have nondisjunction!)
The Earth's crust is broken into many slowly moving plates.
Sea floor spreading occurs at the mid ocean ridge where two plates are moving away from each other.
Magma rises up from below and cools to form new seafloor rock
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Local temperature, light intensity
