Thanks for the info.  I setup a bank account for the bitcoin sale in Coinbase.  Once the deposit verification process is sucessful, I will transfer the contents of my bitcoin wallet from Blockchain to Coinbase and proceed with a sale.

Thanks for the replies.

Dumb question:  How does one send bitcoins from Blockchain to Coinbase?

I presently have a wallet with bitcoins on Blockchain.  My desire is to convert/sell the bitcoins I have into USD.  It is not clear how I can do this in Blockchain, since it appears that I can only receive or send bitcoins. 

What do I need to do inorder to sell my bitcoins for USD that I can deposit into my US bank account?  Is this possible in Blockchain?