(1) A domestic insurer may deposit or arrange for the deposit of securities held in or purchased for its general account and its separate accounts in a clearing corporation or the federal reserve book-entry system. When securities are deposited with a clearing corporation, certificates representing securities of the same class of the same issuer may be merged and held in bulk in the name of the nominee of such clearing corporation with any other securities deposited with such clearing corporation by any person, regardless of the ownership of such securities, and certificates representing securities of small denominations may be merged into one or more certificates of larger denominations. The records of any member bank through which an insurer holds securities in the federal reserve book-entry system, and the records of any custodian banks through which an insurer holds securities in a clearing corporation, shall at all times show that such securities are held for such insurer and for which accounts thereof. Ownership of, and other interests in, such securities may be transferred by bookkeeping entry on the books of such clearing corporation or in the federal reserve book-entry system without, in either case, physical delivery of certificates representing such securities.