A Mrs. Kristy L. France, Cardiology (Cardiovascular Disease), answered on behalf of Honor Society of Nursing (STTI). The blood type of a child depends on the blood type of the parents. Each parent/person has two genes that make up the blood type. Depending on which combination each parent has determines the different combinations that the child can have.
The use of bands and chains are mentioned on the Powerlift Assistance Exercises pages. This page will describe their use. The use of bands and chains are especially recommended for those who compete using squat and deadlifts suits and a bench shirt. The bands and chains mimic the effects that the gear gives and provide extra work for the top part of each lift.
Rubber Bands for Braces. Rubber bands, or elastics, are generally used to help improve how teeth fit together. They are also often used to help close spaces, or make sure spaces are closing in the right direction, and improve cross-bites and midlines. They are simply small rubber bands that are attached to the braces. They are attached by the patient to little hooks that are a part of the braces.