Can your finding be compared and agree or not with the real outcome?

Question

The Y-chromosome is shorter than the X-chromosome, accounting for about four percent less mass to the sperm cell. However, when millions are deposited and must travel a relatively long distance with equal propulsion, this difference in mass should result in what difference in male and female zygotes produced? Can your finding be compared and agree or not with the real outcome?

Answer 1

Since the y-bearing sperm are lighter than x-bearing sperm, they should be able to swim faster. Thus, more y-bearing sperm should reach the egg sooner than x-bearing ones will. So, at fertilization, there should be a slightly higher number of male zygotes than female zygotes. I'm pretty sure that a larger number of males are born than are females.