As a molecular biologist (and blockchain developer) I think your comparison is too simplistic. Here is why:

1. Cells has a single DNA with information.
   ==> The wallet of Bitcoin has a single Blockchain with the information.

Text book genetics 101 tells you this, but in reality it is more complex. There are plasmids, mitochondrial DNA and in case of other organisms, contain other organelles that also contain their own DNA. Then there is DNA damage, which could result in chromosome translocations, chromosome duplications and such. In case of cancer cells, they could end up with multiple copies of the chromosome, just within one cell.
If you look at the information stored on the DNA, it is actually double. There are two strands and one strand could potentially be lost, but all information would be retained. In your case it would mean that for each block there would be another block in the same chain, with the same information, which isn't the case.

1. The human body contains 15 trillion cells and the cells of body have the same DNA.
   ==> Bitcoin has a lots of wallet about s and the wallets have the same Blockchain.

Within an organism DNA within each cell is supposed to be the same, but in reality variations occur. Then there are egg and sperm cells, which aren't the same. In your analogy it would mean that you could take a subset of blocks and build a new chain out of it, which would have a high chance of being valid.

1. For the cells to divide, it must first replicate its DNA.
   ==> For new wallet to create, it must first replicate its Blockchain.

Light wallets don't need the blockchain. They just need to know which blockchain inputs they own. Also, DNA replication causes errors, which most of the times get repared (two strand copy, remember), in case of blockchain replication a block can't be repaired and has to be obtained again from a source.

1. Cells in a particular body , for example the heart or the skin, will express the specific proteins via the mRNA by recognizing the respective positions of body.
   That is, the cells are expressed according to its location in the body.
   ==> Each wallets of bitcoin has his own address. And they can express the balance of each wallets.

The majority of the expressed proteins are expressed in multiple tissues, not just one. This would mean people would be using some high percentage of the same addresses, shared by everyone. Proteins are derived from genes in the DNA, in you analogy it would mean that the wallet software would derive addresses from blocks in the wallet, which isn't the case.

1. The content of DNA is not be erased.
   ==> The content of Blockchain is not erased after six conformation in bitcoin.

I've worked on the PUN1 gene in pepper. It is missing the first 1500 base pairs in sweet pepper, but is present in hot peppers. Information is lost in the sweet pepper, but the plant can live happily with that.
However, information can also be erased from the blockchain. Look it up in Satoshies whitepaper (you only need the headers to recreate the chain and not all individual transactions).
To come back to the DNA again, if DNA wasn't allowed to be erased genomes would become only bigger as evolution progressed, which isn't the case.

6.The DNA has sometimes a mutation with low probability during replication. That is, the DNA of all the body is not the same DNA.
==> The Blockchain has sometimes multiple chains during forking.

Mutations are retained if they don't have a negative selection pressure (e.g. kills the cell). Side chains are always lost.

• The difference of the two :

1. The record of the Blockchain is increased when the transfer is made. But the DNA of cells is not changed.

Like I said before, information can be removed (block pruning, damaged DNA) from both and still be valid and information can be added (new transactions and gene duplications) and still be valid.

So concluding, things don't overlap 1 to 1 and IMHO there are more differences than similarities.