Huejucar!!! Part two
Just a word on DNA tests for females...of course they can be done.
Females have DNA just like males. But remember from your chapter on
Genetics in your Biology class, females have XX chromosomes and males
have XY chromosomes. Male haploid reproductive cells (sperm cells) are
either X or Y chromosome cells. Female haploid (or ova) are ALL
X-chromosome cells. When an X sperm cell fertilizes a X ovum, a baby
girl is conceived. When a Y sperm cell fertilizes an X ovum, a baby
boy is conceived. That is why males determine the sex of the newborn
child.
As Joseph, and anyone else who has investigated their genetic
genealogy, can attest to, paternal origin can only be checked via the
Y-DNA only. Consequently, only males can have their Y-DNA traced,
because only males have the Y-chromosome (which is where the Y-DNA is
located). Unfortunately, females are XX and have no Y-DNA, so females
have to ask a close male relative (father, brother, or paternal-cousin)
if they want
