WBPhenotype:0000050
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embryonic lethal
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Animals die during embryonic development. In C. elegans, often assayed as refractile eggs that fail to hatch; when applied to large-scale RNAi screens in C. elegans, more than 10% of embryos die. |
WBPhenotype:0001165
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excess maternal pronucleus early emb
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One-cell embryos have two or more maternal pronuclei. |
WBPhenotype:0001139
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nuclear envelope assembly variant early emb
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Nuclear envelope does not reassemble properly. |
WBPhenotype:0001082
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large cytoplasmic granules early emb
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Abnormally large granules are observed in the cytoplasm of P0. |
WBPhenotype:0001119
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cell cycle slow early emb
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Embryos take longer to divide during the first and second cell divisions. |
WBPhenotype:0001143
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multiple nuclei early emb
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Embryos contain more than one nucleus per cell in the inviable one- to four-cell embryo. |
WBPhenotype:0000689
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maternal sterile
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Animals produce no or very few embryos as a result of experimental treatment. This is in contrast to sterility due to genetic perturbations (maternal effect sterility). |
WBPhenotype:0002501
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ectopic cleavage furrow early emb
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One or more cells of the early embryo (one-cell stage to four-cell stage) exhibit one or more cleavage furrows in locations not normally found in control cells. |
WBPhenotype:0001156
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pronuclear size defective early emb
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Maternal or paternal pronucleus is either too small or too large. |
WBPhenotype:0001080
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excessive blebbing early emb
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Excessive shaking and movements are seen in the cell membrane or cytoplasm of one-cell or two-cell embryos. |
WBPhenotype:0001147
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polar body defective early emb
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Polar bodies are abnormal in the inviable one- to four-cell embryo. |