What is an introduced species ?
A. A species that is a poor predator
<u>B. A species that does not normally live in an area
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C. A species that has no permanent home
D. A species that increases biodiversity
Because human DNA is so very long (with up to 80 million base pairs in a chromosome) it unzips at multiple places along its length so that the replication process is going on simultaneously and more accurately.