In a species of Yeti (the Abominable Snowman, not the cooler…

In a species of Yeti (the Abominable Snowman, not the cooler/thermos company) Foot Size (big or small) is controlled by one gene, while Head Shape (round or lumpy) is controlled by different gene. Suppose that a big-footed lumpy-headed male Yeti mates with a small-footed round-headed female Yeti. 8 offspring result: 4 big-footed, round-headed Yeti and 4 small-footed, round-headed Yeti. (Assume that the parents are not necessarily homozygous for each allele.) If big feet (B) in Yeti were to be dominant to small feet (b), what would be the genotype of the big-footed parent with respect to the foot gene?

On the Ides of March 44 BCE, the Roman dictator Julius Caesa…

On the Ides of March 44 BCE, the Roman dictator Julius Caesar was stabbed some 23 times by a group of conspirators including the oft mentioned Brutus. Supposedly the fatal wound was one that pierced his heart. Which of the following structures would have been pierced first as the dagger was plunged into Caesar’s chest?

At age 7, Juan was exposed to the chicken pox virus and was…

At age 7, Juan was exposed to the chicken pox virus and was ill for 2 weeks.  At age 17, he was again exposed to the virus, but this time he did not become ill.  Which defensive cells were responsible for sustaining his long-lasting immunity to this virus?