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Genotypes

Description
1. The genotypes of the father, Nicholas II of Russia; his wife, Alexandra; and their son Alexis, respectively, are
   
a.XrY, XRXr, and XRY

b.XRYr, XRXr, and XrYr  

c.XRY, XRXR, and XrY

d.XRY,  XRXr, and XrY

Hint to question 1: The son, Alexis, suffered greatly from his bouts of internal bleeding associated with hemophilia. His mother turned to the holy man Rasputin for help. It is thought that Rasputin helped fan the flames of the Russian Revolution. Have you heard the song "Rasputin" by Boney
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