In Christianity---it is the bride who is
first asked by the priest "whether she accepts the
would-be bridegroom as the lawfully-wedded husband".
In Hinduism---it is the bride who first garlands the bridegroom,
meaning that she has accepted him as her husband and she
will bear his children only.
Also it would be worthwhile to note that in Muslim marriage---the
would-be bride only is asked by the muslim priest whether
she accepts the invitation of marriage (nikah) from her
would-be husband following which the marriage is solemnized.
So in man-woman relationship, man is always the proposer
and woman is always the chooser never vice versa.
From the above observation we can say that the proposing
rights are a male prerogative and the choosing rights lie
exclusively with the female. Just as a woman cannot be impregnated
against her wishes, similarly at the microlevel both sperms
(x and y having different charge) are attracted to the ovum
having a variable charge---but only the sperm, which has
the opposite charge from that of the ovum will be able to
fertilize the ovum and the other sperm will be rejected.
So when the ovum membrane is positively charged, it will
attract the sperm carrying X chromosome (which is negatively
charged) and a baby girl is produced. When the ovum membrane
is negatively charged, it will attract the sperm carrying
the Y chromosome (which is positively charged), and a baby
boy is produced. In short, we can say that the 'mating rights'
are exclusively with the ovum only; once the ovum is fertilized
then only the x or y sperm determines the sex of the baby
(xx means a female and xy means a male). So would it not
be most appropriate to say that it is the female that chooses
the sex of the baby (by virtue of selecting which sperm
to mate with) and the male only determines the sex of the
baby after conception. (so it is not only unfair but also wrong to blame the male for choosing the sex of the baby as the poor male has absolutely no control over which sperm(x or y) will finally fertilise the ovum -because it is the mother nature(ovum) who finally decides which sperm(x or y) to mate with in accordance with its polarity which eventually decides the sex of the baby.
Conclusion: Female of the species is more powerful
than the male.
Souce
: http://www.pediatriconcall.com