Where does replication occur?

in the cytoplasm of prokaryotes and in the nucleus of eukaryotes.

Explanation:

this only occurs in replication of the DNA

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs