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? y - chromosome analysis str analysis dna technology mtdna analysis

Explanation:

Y - chromosome analysis is specific to males. Alexei was male. STR analysis and DNA technology are more general. mtDNA analysis is passed maternally and not specific to male identity.

Answer:

Y - chromosome analysis