Final answer:
Human ova and sperm are similar in that they have the same number of chromosomes, which is 23. This characteristic is due to them being haploid cells, in contrast to the 46 chromosomes in diploid body cells.
Step-by-step explanation:
The human ova and sperm are similar in that they have the same number of chromosomes. Each human gamete contains 23 chromosomes, which is half the number present in non-reproductive body cells, thus making them haploid cells. This is in contrast to the typical body cell, which is diploid and contains 46 chromosomes.
The process of gamete production via meiosis is crucial for maintaining the correct number of chromosomes during sexual reproduction. While the quantity of sperm produced by males can be in the millions per day, females typically release only one oocyte monthly. Additionally, sperm are much smaller and have flagellar motility, unlike the human ova which are relatively larger and non-motile.