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