They have half the chromosomes in body cells. One half are from one parent the other half is from the other parent.
Life style, environment toxins, and Gene mutations
The second sentence would be the correct replacement for the sentence
Try meditation every night before bed. Breath in through your nose count to 4 and breath out through your mouth and count to 4,do this 5-10 times when ever you feel really stressed and before bed. I do this every night and it helps me hope it works for Heidi and her sister
It's true that sodium is a principle extracellular electrolyte.