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 era varón. El ADN del cromosoma Y se transmite solo de padres a hijos varones. Por lo tanto, la análisis del cromosoma Y solo se puede usar para identificar a Alexei (un varón), ya que Anastasia era hembra y no tendría cromosoma Y. La tecnología de ADN y el análisis de STR se pueden usar para ambos, y el análisis de mtDNA (ADN mitocondrial) se hereda de la madre y se puede usar para ambos también (ya que tanto Alexei como Anastasia heredarían el ADN mitocondrial de su madre).

Answer:

Y - chromosome analysis