The table below shows the depths at which an index fossil and three other fossils were found. Which statement is correct? O The index fossil is the oldest fossil.
O The index fossil is the youngest fossil.
O Fossil A is the same age as the index fossil.
O Fossil B is the same age as the index fossil.

 In general mutations often occur during nuclear division because each chromosome has to replicate before division (mitosis). During replication your 3 billion nucleotides make copies of themselves leaving one copy in the original cell and another in the sister cell after division. This as you can imagine makes mutations most likely to occur here.