RE: Left arm vs. right arm blood pressure question 9/16/2005 5:01AM - in reply to veryyyy. Reply. Return to Index. Report Post. The plumbing from the heart to the left arm is more direct than to the right arm, so in order to get truer numbers, the left arm is preferred.
Pedigrees show how characteristics are passed from one generation to the next. They are used in studying human genetics because it is not possible to carry out controlleâ¦d breeding experiments with humans, as we can with other animals or with plants.
The pedigree will typically show one kind of trait and the affected members of a family. Take a look at if the trait is dominant or recessive first. Once you have that figured â¦ out, start to predict the genotypes of the individuals in the pedigree chart.