Verified answer

It's not 4 million, it's 8 million and this is why...

The bacterium has 4 million base PAIRS. Pairs. That is like when you have a pair of socks...but that means you have 2 socks... sooo 4 million base pairs is really 8 million bases (molecules).

When the bacterium replicates its DNA, it doubles the amount it has. That's because one full copy is needed for each new resulting daughter cell, of which their are 2..

and 8 million new molecules are needed to make those 4 million new base pairs...

and so the answer is C.

DNA Replication means producing an exact copies of the DNA, so if there are 4 million, it will also have 4 million after replication, answer is B.

The bottomline of DNA replication is that the organism needs to produce an exact copies of their DNA for them to survive. Cells only live for a limited time so they need to replicate so they can produce another cell that would continue their functions.

I´d also say 4 million, because if the DNA is 4 million base pairs in length, it´ll need 4 million more base pairs (A=T and C=G) which are in the end the complementary side. But make sure you look at the job which RNA has in all this (transcription, translation) and things will clear up.

Good luck!

replication is exact copy of that nucleotide sequence

so for a nucleotide having a length of 4 million nucleotide base pairs 4 million nucleotide are required

4 million ?

What even? I'm not even learning this ;-;

guess only 32M