They do not form in a blood donation because blood clots are out of our anotomy

1) Allogeneic Blood Donation - A qualified blood donor donates blood for unknown recipient. The donation process in which a donor directly donates blood to a family member, relative or friend is called Directed Blood Donation.

2) Autologous Blood Donation - A person's blood is temporary preserved and will be transfused back at him after a surgery.

yes it is ok.in ladies anything above 12.5 is ok for blood donation that wht doctor conveyed to me when i did my first blood donation ,Mine was also 12.8 when i did my first blood donation

advance banking of blood by the patient (known as autologous donation)

Yes you are right, every person in the world is responsible to each and every thing. Blood donating is also one of the responsibility of a person, that by giving blood you can save one live.