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:0000031
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slow growth
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Any variation that causes a reduction in growth rate compared to control. |
WBPhenotype:0000059
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larval arrest
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The developmental program of the animals halts at any larval stage and thus fails to reach adulthood. In C.elegans, this occurs anytime during L1-L4 stage. |
WBPhenotype:0004004
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male response to contact defective
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The inability of a male to respond properly to a potential mate after contact. In C.elegans, proper response includes apposing the ventral side of his tail to the hermaphrodite's body and swimming backward. |
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). |