Sperm fertilize only egg cells, while all cell types are present in a growing oocyte and these differences explain these findings in such a complex vertebrate model. This may mean the frog is simply able to produce very large oocytes and has an increase in egg maturation efficiency. It could be argued this is an advantage of an animal that can produce huge volumes of eggs.
Answers & Comments
Answer:
Sperm fertilize only egg cells, while all cell types are present in a growing oocyte and these differences explain these findings in such a complex vertebrate model. This may mean the frog is simply able to produce very large oocytes and has an increase in egg maturation efficiency. It could be argued this is an advantage of an animal that can produce huge volumes of eggs.