31. Fertilized eggs become zygotes , which develop into sporophyte embryos inside the archegonia. 32. The fertilized egg cell is known as the zygote . 33. In heterothallic fungi, two different individuals contribute nuclei to form a zygote . 34. However it does create abnormal second polar bodies and therefore possible aneuploid zygotes . 35. Under certain stress conditions some zoospore pairs fuse, resulting in a zygote . 36. Neither will every normal zygote develop into an adult. 37. The zygote is then becomes an auxospore, which has no rigid frustule. 38. Carposporangia are formed through direct division of the zygote . 39. The resulting genetic imbalances are lethal after fertilization to the zygotes containing them. 40. Some zygotes would die from the implantation but most would still be viable.
