Do women fall into 1 or 2 haplogroups? My dad had his MTDNA tested and we're try

Question:

Do women fall into 1 or 2 haplogroups? My dad had his MTDNA tested and we're trying to figure out the pieces

my dad just had his mitchondrial line of DNA tested... the results came back as

25% - Group T
25% - Group A

he had the test conducted from Genebase.... we dont understand if that means her mother and her fathers mother contributed different Xs because women are XX or if only one haplogroup is possible... so its either group A or group T.

does anyone have information about how mitochondrial infomation gets passed on to males?

Also, would my dads X chromosomes come from only his mother or possibly his fathers mother too?
thank you!

Best Answer - Chosen by Asker: This Wiki article explains haplogroups and may answer your question better than I can. Or go to a local University and talk to one of Biology grad students.

Group T is West Eurasian, "is believed to have originated in Mesopotamia or Anatolia approximately 10,000 years before present, and to have moved northwards. It is found with particularly high concentrations around the eastern Baltic Sea, and the Urals."

Group A is East Eurasian, "is believed to have arisen in Asia some 60,000 years before present . . . is found throughout modern Asia. Its subgroup A1 is found in northern and central Asia, while its subgroup A2 is found in Siberia and is also one of five haplogroups found in the indigenous peoples of the Americas, the others being B, C, D, and X."

From what I can understand (haven't had Aunt Biologist explain it to me yet), mtDNA is the Maternal Line only.

ADDED: Answer from Aunt Biologist: "Mitochondria is a little organelle that makes ATP inside the cell . ATP is like a battery that stores energy needed for cellular work. The Mt has 37 genes and you get them through the egg (from Mom, Mom??s Mom etc) A haplotype is just a group of tightly linked genes (or markers) that are inherited together."