合子核
The first mitotic division of the endosperm nucleus takes place about 12 hours after pollination, earlier about 3 hours than the first division of the zygote, the latter gives rise to a terminal cell and a basal cell by a transverse division.
授粉后12小时胚乳核开始第一次有丝分裂;
The zygote has a fixed complement of genetic information in its nucleus.
合子的核中具有固定的全部遗传信息.
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