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Term Definition

in genetics, a character state (or the allele that controls it) that is expressed in the phenotype only if another identical allele for the locus is present; a recessive allele can be masked by a dominant allele.


a clear thread-like cell visible in germinating spores and at the base of gametophytes


the vascular organ of sporophytes that is typically associated with the the substrate

root cap

the very tip portion of a root that is composed of a loose aggregation of friable cells

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