Question

tsar nicholas ii and tsarina alexandra were the romanov rulers of russia when the bolshevik revolution took place in 1917. during this revolution, tsar nicholas ii was overthrown, and the majority of his family members were killed. the remains of two of the tsar and tsarinas children, alexei and anastasia, were never found. suppose two people came forward who claim to be the missing romanovs. which technology could only be used to identify alexei? dna technology str analysis mtdna analysis y - chromosome analysis

Explanation:

Alexei was male. Y - chromosome analysis can be used to identify male - related genetic information. mtDNA (mitochondrial DNA) analysis is more related to maternal - line inheritance and would not be specific to identifying a male individual like Alexei. STR (Short Tandem Repeat) analysis and general DNA technology are more general and not as specific as Y - chromosome analysis for identifying a male from the Romanov line.

Answer:

Y - chromosome analysis