Final answer:
Forensic scientists used DNA analysis and skeletal examination to study the case of the Romanovs, employing molecular techniques and analysis of skeletal remains to aid in identification.
Step-by-step explanation:
The types of forensic evidence available for scientists studying the case of the Romanovs were DNA analysis and skeletal examination. During their investigation, forensic scientists utilized sophisticated molecular techniques to analyze biological samples, including DNA content of hair, blood, and other body fluids. They employed methods like DNA isolation, PCR amplification of STR loci, and electrophoresis. Furthermore, forensic anthropologists analyzed skeletal remains to determine features such as age, sex, and cause of death which was crucial in helping to identify the Romanovs.