Answer: Fifty babies will be females while fifty babies will be males.
Explanation: A cross between XX and XY will yield 2 XX and 2 XY. This means that 50% of the offsprings are females while 50% of the offsprings are males. What this means is that fifty out of one hundred babies will be females while the remaining fifty will be males
See the punnett square attached for the details of the cross