Born in Moscow. In 1997, being a student of Moscow Choreographic Academy, where she studied under Sophia Golovkina, Alexandrova won a Gold medal at the International Ballet Competition in Moscow. In a very short time after that she joined the Bolshoi Ballet. Durig her first season at the Bolshoi theatre she was entrusted with solo parts. Next season she was promoted to soloist. In 2004, she became a principal dancer. It was for the first time when public declaration of promoting happened.
Her coach at the Bolshoi was Tatiana Golikova. Now she rehearses under Nina Semizorova.