This Day in History: 06/19/1953 - Rosenbergs executed. In This Day in History video clip: On this day in 1953, Julius and Ethel Rosenberg, who were convicted of conspiring to pass U.S. atomic secrets to the Soviets, are executed at Sing Sing Prison in Ossining, New York. Both refused to admit any wrongdoing and proclaimed their innocence right up to the time of their deaths, by the electric chair.
The bond linking a phosphate group to a sugar of a another molecule is called a phosphodiester bond.
Â· just now. Report Abuse. I would say phosphate bonds, since it is usually phosphate bonds that hold phosphate groups, that are linked to each other by linked together by covalent bonds. the bond between the second and third phosphate groups. This covalent bond is known as a pyrophosphate bond..