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.
Here are two pedigrees showing the same three generations of a family. A specific trait is shown as a solid black circle or square. The pedigree on the left is an example of a dominant trait in this family. The pedigree on the right depicts a recessive trait.In this genetics and genomics science project, you will create pedigrees for four human physical traits to determine which phenotypes are dominant and which are recessive.ere are two pedigrees showing the same three generations of a family. A specific trait is shown as a solid black circle or square. The pedigree on the left is an example of a dominant trait in this family. The pedigree on the right depicts a recessive trait.